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North Bihar Power Distribution Company Limited(Regd. Office : Vidyut Bhawan, Baily Road, Patna)

(Commercial Department)CIN‐ U40109BR2012SGC018920COM/NB/3oD/85/2017

NotificationDateこ .p。

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/20′ gNotification No. .?.?....

Detailed Guidelines and Procedure under Bihar Electricitv Reeulatorv

Commis.sion (Rooffop Solar Gri4 Interactive Svstems Based o+ Net-Meterine)

Regulations. 2015

Introduction: In order to promote development of roof top and small solar photovoltaic systems

in the state, Hon'ble BERC has framed BERC (Rooftop Solar Grid Interactive Systems based on

Net Metering) Regulations, 2015 and notified vide Gazette Notification No. 737 dated

07 .07.2015. These regulations permit consumers to install roof top and small solar photovoltaic

systems in his premises with the provision of net metering arrangement under which the

electricity generated by the roof top and small solar photovoltaic systems owned by the

consumer and delivered to the distribution licensee shall be utilized to offset the electricity

supplied by the distribution licensee to the consumer during the applicable billing'period and

adjustment/accounting of extra generation during the "settlement period" as per provisions in the

Regulations.

In order to implement the above Regulations and to avail the above facility, the Board of

Directors of the Company in its 73'd meeting held on 11.12.2017 vide Resolution no.73'12

passed the following resolution for procedure prescribed for the field officers and accordingly

approval for the installation of roof top and small solar photovoltaic systems with net metering

arrangement to the willing consumers shall be accorded.

l. Short Title and Commencement

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l.l. The BERC (Rooftop Sorar Grid Interactive Systems based on NetRegulations, 2ol5 is avairable on the web site of BERC which may be

Metering)

referred incontinuation with these guidel ines.

l '2' Words and expressions used in these Guidelines and not defined herein but defined inthe Electricity Act, 2003 (hereinafter referred to as 'the Act'), as amended from time totime, and in the BERC (Rooftop Solar Grid Interactive Systems based on Net Metering)Regulations,2015 shall have the meaning as assigned to them under the Act andRegulations.

2. Definitions and Interpretations

2.l. rn these regulations, unress the context otherwise requires,

a) "Accuracy Class Index" shall mean the index as specified in Central ElectricityAuthority (lnstallation & operation of Meters) Regulations 2,006 and subsequentamendments thereof;

b) "Act" means the Electricity Act, 2003 (36of 2003) and subsequent amendments thereof;c) "Billing Cycle" or "Billing period" means the period for which electricity bills as

specified in the Bihar Electricity Supply Code, 2007 asamended from time to time, shallbe prepared for different categories of consumers by the Licensee.

d) "Commission" means the Bihar Electricity Regulatory Commission constituted under theAct;

e) "Consumer" means any person who is supplied with electricity for his own use by aLicensee or the Government or by any other person engaged in the business of supplyingelectricity to the public under the Act or any other law for the time being in force and

includes any person whose premises are, for the time being, connected for the purpose ofreceiving electricity with the works of a Distribution Licensee, the Government or such

other person, as the case may be;

0 "Contracted Load" or "Contract demand" means the maximum demand in kW, kVA orBHP, agreed to be supplied by the licensee and indicated in the agreement executed

between the licensee and the consumer;

g) "Distribution Licensee" or "Licensee" means a person granted a license under Section

l4 of the Act authorizing him to operate and maintain a distribution system for supplying

electricity to the consumers in his area of supply;

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h) "Elcctricitv Suppll'('odc" nlcarls thc Llilrar l:iecr:'icirr Suppi-r ('o<ic'1007 spccil)ed br

tlrc- Conrtnission undel'section 50 ol'thc Act arrci subsc,cprent anrencinrents therc-ol':

i) 'Eligible consumer' nleans a consurner ol'r-'lectricitl, in the area of supply,of the

' distribution licensee. rvlro uses a rooftop solar systern irrstalled in the consumer premises.

to offiet part or all of the consumer's own electrical requirements. given that such

systems can be self'-owned or third party owned;

j) "Financial Year" or "Year" means the period beginning from first of April in an English

calendar year and ending with the thirty first of the March of the next year;

k) "Inter-Connection Agreement" means the agreement entered into for connecting

rooftop Solar PV system to the distribution system;

l) "Interconnection Point" means the interface point of the Solar PV power generation

facility with the distribution system of the Licensee. The interface point shall be the

appropriate meter as per CEA (lnstallation and Operation of Meters), Regulations, 2006

and subsequent amendments thereof, installed at consumer's premises or distribution

substation;

m) "Invoice" means either a Monthly Bill / Supplementary Bill or a Monthly Invoice/

Supplementary Invoice raiserJ by the Distribution Licenseeo'k\ilp" means kilo Watt peak;

"Net metering" means an alTangement for measurement of energy in a system under

which rooftop solar PV system installed at eligible consumer premises delivers surplus

electricity, if any, to the Distribution Licensee after off-setting the electricity supplied by

Distribution Licensee during the applicabfe billing period.

"Net Meter" means an appropriate energy meter capable of recording both import and

export of electricity or a pair of meters one each for recording the import and export ofelectricity as the case may be; which shall be an integral part of the net metering system;

"Obligated entity" means the entity mandated under clause (e) of subsection (l) ofsection 86 of the Act to fulfil the renewable purchase obligation and identified under

BERC (RPO its Compliance and REC Framework Implementation) Regulations, 2010

and subsequent amendments thereof;

"Premises" means rooftops or/and elevated areas on the land, building or infrastructure

or part or combination thereof in respect of which a separate meter or metering

arangements have been made by the Licensee for supply of electricity;

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"llogliop solar srslem l)tcir:ls ihc stt:e:';lliolo rrl.:lt.e it(,\\\ci s\sleill insiallctj 0tt tl:e

rtlolitlps ()r an\ tltiter struclr:rc i:r c()nsunlcl'i)r'ent:\L'\ titat ttscs sutllight lilr ciircct

corrr crs ion i ttto c lu'ctric itr tlrrou glr itltottl vtllraic tcclt tto i o gr :

"Renenable Energy Certificate (REC)" means thc ccrtillcate issued in accordance rvith

the procedures approved by the Central Electricity Regtrlatory Commission;

"Solar Meter" means a unidirectional energy meter installed as an integral part of the net

metering system , at the point at which the electricity generated by solar energy system is

delivered to the main panel of the eligible consumer;

o'settlernent Period" means the period beginning from first of April in an English

calendar year and ending with the thirty first of the March of the next year;

"Tariff Order" in respect of a Licensee means the most recent order issued by the

Commission for that Licensee indicating the rates to be charged by the Licensee from

various categories of consumers for supply of electrical energy and services and its

validity has not expired;

All other words and expressions used in these Regulations although not specifically

defined herein above, but defined in the Act, shall have the meaning assigned to them in

the Act. The other words and expressions used herein but not specifically defined in the

Regulations or in the Act but defined under any law passed by the Parliament applicable

to the electricity industry in the State shall have the meaning assigned to them in such

law.

3. Scope and Application:

3.1. The eligible consumers of electricity in the area of supply of the distribution licensee can

participate in the solar rooftop net metering arrangement in pursuant to BERC (Rooftop

Solar Grid Interactive Systems based on Net Metering) Regulations, 2015 as notified by

Hon'ble Commission on 7'h July,2015.

3.2. The manimum rooftop solar system capacity to be installed at any eligible consumer

premises shall be governed by the eligibility of interconnection with the grid for that

eligible consumer. The maximum capacity of an individual rooftop PV system would be

equal to the sanctioned load of the consumer subject to minimum capacity of I KWp.

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3.3. I'he capacitr ol"[]tc stlla:' cncrs\i s\stL-nr to bc instalieci at the pi'c:triscs ttl'an1, eligib]c

collsumer sjtall ntti bc less than orre k\\ip (kilo uatt peali)arrci shall rrot excu'eci one \l\\'p( Mega Watt Peak) subjcct to the condition as specilied irr sub para 3.2 above.

3.4. Consurners having dues of Electricity u,ill not be allorved fbr Net Meterin-s Schenre.

4. Procedure for application:

For LT Consumer:

4.1. The Eligible Consumer who proposes to install a solar energy system in his premises

shall submit application to the Revenue collection counter in the office of the AEE,

Electric Supply Sub-division in the prescribed Application form (Annexure -ll), which

can be downloaded from the website of DISTRIBUTION LICENSEE/BSPHCL or

which can be obtained from the concerned Electric Supply Sub-division/Division office

of DISTRIBUTION LICENSEE and deposit the same in concerned Subdivision office

along with the application fee as specified in (Annexure -VIII). The eligible consumer

who intends to install grid connected rooftop solar system, in the supply area ofdistribution licensee shall be treated on first come first serve basis. The priority for such

application shall be maintained at Subdivision office for which a separate register shall

be maintained.

Within Seven (7) working days of receipt of Eligible Consumer's application, Assistant

Electrical Engineer of concerned Electric Supply Subdivision shall perform general

screening and register the application with an acknowledgement (Attached in

Application Form) to the applicant that it has received all documents required as per the

standard interconnection agreement and requisite application fee.

Feasibility for the connection of roof top shall be done by Assistant Electrical Engineer

of concerned Electric Supply Subdivision within fifteen (15) working days from the

receipt of completed application.

The. Applicant at his liberty to select a reputed system, installer, to gather technical

information of RTSPV system and furnish the technical details of PV modules, lnverters

and other equipments of the RTSPV system.

lf any discrepancies in application form or during inspection of premises is found then

AEE, Supply will inform in writing to the applicant within next seven (7) days.

4.2.

4.3.

4.4.

4.5。

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tlrr.'p c6rrce;ncd Assistilrtr lrlcctriclll I:ngincer'. l.lcctr:e Strplllr Srrb-ciivision till sa:rclitltl

the load of roofiop solar s),s1enr $itlrirr se'ven (7)$tlrliing c'la)'s.

4.7. -l'lru'sanction order should contain supervision chargc. securily deposit amount and meter

installation charge to be deposited by the eli-tible consumer as deflned under Arrnexure

VIII. The applicant will deposit the charges within seven working days of sanction order.

4.8. The applicant will execute an inter connection agreement with the concerned AEE,

Electric Supply Sub-division.

4.9. The applicant will provide declaration regarding work completion of installation of Solar

. Photovoltaic Roof Top Power Ptant with document of solar modules having ISI mark.

After receipt of declaration towards work completion from applicant, testing,

commissioning and synchronization of RTSPV system along with metering arrangement

for net metering connection will be done under supervision of concerned AEE/JEE,

Electric Supply Division within next seven (7) working days.The meters will be tested at

MRT test lab.

4.10. AEE, Electric Supply Sub-division will send service connection report to the billing

office within 7 days.

For HT Consumer:-

4.1l. The Eligible Consumer who proposes to install a solar energy system in his premises

shall submit application to the Revenue collection counter in the office of the AEE,

Electric Supply Sub-division in the prescribed Application form (Annexure -II), which

can be downloaded from the website of DISTRIBUTION LICENSEE/BSPHCL or

which can be obtained from the concerned Electric Supply Sub-division/Division offtce

of DISTRIBUTION LICENSEE and deposit the same in concemed Subdivision offrce

along with the application fee as specified in (Annexure -VI[j. The eligible consumer

who intends to install grid connected rooftop solar systemo in the supply area of

distribution licensee shall be treated on first come first serve basis. The priority for such

application shall be maintained at Subdivision offrce for which a separate register shall

be maintained.

4.12. Within Seven (7) working days of receipt of Eligible Consumer's application, Assistant

Electrical Engineer of concerned Electric Supply Subdivision shall perform general

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screenills illld rcgislcr ,n. app)icarion u iil: i'rit ircii:rorr lcducntent (Atrached iriApplication l:ornt)ro the applicanr that it has receivcci ali ciocurlcnts recluir.ed as pc.r the

standard interconncction agreenlent and requisite appl icatiorr f'cc.

4.13. Feasibility tbr the connection of roof top shall be done b5, AEE Supply, AEE/EEE. MRT

rvithin flfteen (15) u,orking days from the receipt of completed application which will be

approved by EEE Supply. In case of 33 KV and above consumer EEE/ESD will do

inspection for the feasibility and it will be approved by ESE.

4.14. The applicant will have liberty to select a reputed system, installer, to gather technical

information of RTSPV system and furnish the technical details of PV modules, Inverters

and other equipments of the RTSPV system..

4.15. If any discrepancies in application form or during inspection of premises is found then

EEE, Supply will inform in writing to the applicant within next 7 working days.

4.16. If connection feasibility report is satisfactory and no further documents are required then

concerned EEE, Supply (in case of I I KV consumers/ESE, Supply (in case of 33 KVconsumers) will sanction/give approval of the proposal of the rooftop solar system

within 7 working days.

4.17. The sanction order should contain supervision charge, security deposit amount and meter

installation charge to be deposited by the eligible consumer as defined under Annexure

VIII. The applicant will deposit the charges within seven working days of sanction order.

4.18. The applicant will execute an inter connection agreement with the concerned EEE,

Supply (in case of I I KV consumer/ESE, Supply (in case of 33 KV consumer).

4.19. The applicant will provide declaration regarding work completion of installation of Solar

Photovoltaic Roof Top Power Plant with document of solar modules having ISI mark.

After receipt of declaration towards work completion from applicant, testing,

commissioning and synchronization of RTSPV system along with metering arrangement

for net metering connection will be done by concernedEEE/AEE, MRT Electric Supply

Division within next 7 working days after submission of clearance for Electrical

Inspection by the applicant consumer.

4.20. AEE, Electric Supply Sub-division will send service connection report to the billingoffice within 7 days.

5. Other Conditions:

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to a cot)slurcr. u,htl inlends to instlll (irict c()ltltcclc(i I{oolitlp I)V Solar l)tlrter Plants. in

its Area of Suppll'on non-discriminator\ and llrst come llrst serve basis. lrowevcr-

priority will be giverr to applicants lraving installcd thc rooltop solar sy'stern befbre

irnplementatiorr of the net metering system bv the Discom:

i. Provided further that the Consumer is eligible to install the Grid connected

Rooftop PV Solar power Plants of the rated Capacity as specified in para 3.

. ii. Provided also that the interconnection of such system with the grid is undertaken

as specified as above ahd in compliance of Central Electricity Authority

(Technical Standard for Connectivity of the Distributed Generation Resources)

Regulation, 2013.

iii. In case the applicant consumer does not install the rooftop solar system as per

approval given within 90 days of its approval, the application will be cancelled.

He will have to apply afresh application if he so desires.

6. Capacity Targets for Distribution Licensee:

6.1. The DISTRIBUTION LICENSEE shall provide net metering arrangement to eligible

consumers as long as the total capacity ln MW)dOeS nOt exceed the target capacity

determined by the Commission;

Provided a maxirnum cumulative capacity of 10MW shaH be anowed to eligible

consumers under net metering, on yearly basis, in the area of supply of the

DISTRIBUTION LICENSEE or as per the BERC(Rooftop solar Grid lnteractive

Systems Based on Net¨ Metering)Regulations,2015 and its amendment notined by the

Commission from time to time;

PЮvided that the cumulative capacity to be a1lowed at a particular distribution

transfollller shan not exceed 150/O of the capacity of the distribution transforlner;as per

the BERC(Roo■op solar Grid lnteractive Systems Based on Net… MeterinD Regulations,

2015 and its amendment notifled by the Commission from time to time.

The DISTRIBUTION LICENSEE shall update distribution transfoニ ュller level capacity

available for connecting rooftOp solar systems under net metering arrangement on yearly

basis and shall provide the infomation on its website as well as to the Commission.

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6.2.

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7. Standard. Operation and Mainter)ancc ol'Solar l)on'er Generatiolr:

7 .1. The Solar Porver Generator and [:.cluiprnents u'ill confbrnr to tlre standard and

requirements specified in Bihar Electricit,'- Regulatorv Commission (Roofiop Solar Grid

Interactive Systems Based on Net-Metering) Regulations.20l5 and in the follorving

Regulations and codes as amended from time to time:

i. Central Electricity Authority (Technical Standards for connectivity of the

D i stributed Generatin g Resources) Regu lation, 20 I 3.

ii. Central Electricity Authority (lnstallation and Operation of Meters) Regulation,

2006.

iii. Central Electricity Authority(Measures related to Safety and Electric Supply)

Regulations,20l0

7.2. The equipments of Solar PV Roof top shall be pre tested by the supplier and a test

Certificate for the concemed equipment shall be provided to the consumer and shall be

furnished to DISTRIBUTION LICENSEE after receipt of connection feasibility Report

from the DISTRIBUTION LICENSEE office. The consumer shall get the equipment

installed at his/her premises by representative of the supplier to confirm satisfactory

working.

8. Interconnection with the Grid

8.1. The interconnection of the rooftop solar system with the network of the DISTRIBUTION

LICENSEE shall conform to the technical specifications, standards and provisions as

provided in the Central Electricity Authority (technical Standards for connectivity of the

Distributed Generation resources) Regulations, 2Ol3 & Central Electricity

Authority(Measures related to Safety and Electric Supply) Regulations, 2010 as amended

from time to time.

8.2. The Net'meter and solar meter installed should conform to the standards, specifications

and accuracy class as provided in the Central Electricity Authority (Installation and

operation of Meters) Regulations, 2006, as amended from time to time and are installed

in such a way that they are accessible for reading.

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8.3.'Ilre l{tloliop Stllar'l')()\\ct'Drrldircci:ilrn install s,.riti l:r'ie'raetirc solal'po\\r'l's\slclll \\i1l)

or uithoul hatlcrr backu1,..

Provided that il'thc Solar Pouer (icncrator. prelbrs connccti\itr riith battery backup (lirll

load backup/partial load backull).in all such cases the inverter shall hal'e separate backup

wiring to prevent the battery/Solar power to flou, into the grid in the absence of grid

supply and manual isolation switch shall also be provided.

The connectivity level at which the rooftop PV Solar Power Plant shall be connected with

the Grid are as specified below or it may be decided to give connection as per level

specified in Electricity Supply Code.:

8.4.

l Upto 5 kW

2 Above 5 kW and upto 45 kW/50kVA

3 Above 45 kW/50kVA and upto lMW

240V――Single phase

400V― Three Phase

llkV 8ι above as applicable

8.5.

8.6.

The Solar power producer shall be responsible for safe operation, maintenance and

rectification of any defect of the solar Energy System up to the point of Net Meter

beyond which the responsibility of safe operation & maintenance shall rest with the

DISTRIBUTION LICENSEE.

The consumer shall be solely responsible for any accident to human being/ animals

whatsoever (fatal/non-fatal/ departmental/non-departmental) that may occur due to back

feeding from the Solar Power generator plant when the Grid supply is off. The

distribution licensee reseryes the right to disconnect the consumer's installation at any

time to the event of such exigencies to prevent accident or damage to man and material.

In case of any accident, which can be attributable solely or partly to the act of

negligence of consumer, the consumer shall be liable to compensate the damages

incurred in terms of compensation if any to be paid to deceased/victims and to the

Distribution licensee as decided by any CGRF/court/state Govt./ other statutory

bodies . The consumer will ensure the proper functioning of islanding system of

solar modules 24*7 for the entire period of its operation and its connecting to

licensee system through net metering.

The DISTRIBUTION LICENSEE reserves the right to disoonnect the Solar Energy

System atany time in the following condition:

8.7.

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;. Il,ent ot'possiblc tirrcal,'tianrasc lcl i1s distribution s\stcn1 or clanrage to nrarr arrci

material.

ii. Emergerrcies or MaintL'nance requirement on the DISI-RlllL,'l'lON LICENS[:lr

Network System.

iii. Hazardous condition existing on the DISTRIBUTION LICENSEE sysrem due to

Operation of Solar Energy Generator or protective equipment as determined by

the DISTRIBUTION LICENSEE / BSPTCL / SLDC / etc. .

iv. Adverse Electrical Effects such as power quality problems on the electrical

equipment of the other consumer of DISTRIBUTION LICENSEE caused by the

solar energy generator as determined by the DISTRIBUTION LICENSEE.

8.8. The DISTRIBUTION LICENSEE will have the liberty to conduct test on the RTSPV and

its associated systems as per relative standard & as per DISTRIBUTION LICENSEE

standard to ensure the quality of power generated from the solar PV system.

8.9. Any alternate source of supply shall be restricted to the consumer network and THE

consumer shall be responsible to take adequate safety measures to prevent battery power/

diesel generator power/ backup power extending to DISTRIBUTION LICENSEE LT

Grid on failure of Grid supply.

8.10. The rooftop PV Solar power plant should be capable of detecting an unintended islanding

condition. These systems must have anti - islanding protection to prevent any

unfavourable conditions including failure ofsupply. IEC- 62116 shall be followed to test

islanding prevention measure for Grid connected PV Inverters.

8.1l. Every Rooftop PV Solar Power Plant shall be equipped with automatic synchronization

device either with separate device or the same is inherently built into the inverter.

8.12. The Rooftop PV solar power plant operating in parallel with the electricity system shall

be equipped with the following protective functio4 to sense abnormal conditions on

electricity system and cause the rooftop PV Solar Power plant to be automatically

disconnected from the electricity system inappropriately:

i. Over and under voltage trip functions if voltage reaches above ll0% or below 807o

of normal connected voltage respectively with a clearing time up to two second,

however DISTRIBUTION LICENSEE may prescribe a narrow range of Voltage for

the purpose.

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47.5llt u itlt a clca:'ing 1i:lre rip to 0.2 sccottti. itortct'c-t' l)lS'l-RIllt I I()\I-lCE\Sl:E nta\r prescl'ibe a rlarro\\ ranse ol' licquctrcv lbr the ptrrpose. I he

Rootiop PV Solar Pou'er Plant shall cease to errergize the circuit to uhich it is

connected in case of an1' fault in this circuit.

iii. A voltage and frequency sensing and time delay function to prevent the Rooftop PV

Solar Power Plant from energizing a de- energized circuit and to prevent the

Rooftop PV Solar Power plant from reconnecting with electricity system unless

voltage and frequency is within the prescribed limits and are stable for at least Sixty

second; and

iv. A function to prevent the Rooftop PV Solar Power Plant from contributing to the

formation of an unintended island, and cease to energize the electricity system

within TWO seconds of the formation of an unintended island.

8.13. The equipment of the Rooftop PV Solar Power shall meet following requirements,

namely:

i. Circuit Breakers or other interrupting equipments shall be suitable for their

intended application with the capability of interrupting the maximum available

fault current expected at their location.

ii. . The Rooftop PV Solar Power Plant and associated equipment shall be designed so

that the failure of any single device or component shall not potentially compromise

the safety and reliability of the electricity system.

iii. Paralleling device of the Rooftop PV Solar Power Plant shall be capable of

withstanding22O% of the normal voltage at the interconnection point.

8.14. Every time the Rooftop PV Solar Power Plant of the Eligible Consumer is Synchronized

to the Electricity System, it shall not Cause Voltage fluctuation greater than *5%o at the

point of inter connection.

8.15. Prior to synchronization of the Rooftop PV Solar Power Plant for the first time with

electricity system, the applicant and the appropriate licensee shall agree.on the protection

features and control diagrams.

8.16. The power conditioning unit shall have the features of filtering out harmonics and other

distortions before injecting the energy into the system of the DISTRIBUTION

LICENSEE. The technical standards, power quality standards and inverter standards shall

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be as pcr Attrtcxttrc - IV or artr tlihcr stir:rciarcis irs nxl\ be spccilicci 'b1 ('l..A ll'o:l linrr-'to

time.

g. Metering Arrangement, Energy, Accounting & Settlement:

Metering Arrangement

9.1. The metering system shall be as per the provisions of CEA (lnstallation & operation ofmeters) Regulations, 2006, CEA (Measures relating to Safety and electricity supply)

Regulations, 2010 and CEA(technical standards for Connectivity of the distributed

generation resources), Regulations,20l3 as amended from time to time and in compliance

with the norrns fixed by BERC/CERC from time to time.

g.2. The DISTRIBUTION LICENSEE shall provide meters as per provision in Bihar

Electricity Supply Code, 2007 as amended from time to time. The Net Meter shall be

installed at the interconnection point of the eligible consume with the network ofDISTRIBUTION LICENSEE.

9.3.

9.4.

A Separate solar meter shall be installed at the delivery point of the solar energy system

to measure the quantum of solar energy generated by the Eligible Consumer.

Check meters shall be mandatory for rooftop solar systems having capacity more than 20

kW. For installations size of less than and equal to 20 kW, the solar Check meters would

be optional

The cost of meter(s) (Net Meter, Solar Meter, Check Meter), Installatiori / Replacement

(if any) shall be borne by the eligible consumer under the provisions of Bihar Electricity

Supply Code, 2007 and its amendment issued from time to time.

9.6. The Meter shall be tested, installed and sealed in accordance with the provisions of CEA

(Installation and operation of Meters) Regulations, 2006 and provisions under Bihar

Electricity Supply Code, 2007 as amended from time to time. It shall be jointly inspected

and sealed by the licensee on behalf of both the parties. It shall be tested by the licensee

and installed in presence of consumer and the licensee with due acknowledgement.

Provided that the eligible consumer shall follow the metering specifications,.provisions

for placement of meter as developed by the distribution licensee from time to time and as

per the Bihar Electricity Supply Code, 2007 and its amendments issued from time to

time; Provided further that in case the eligible consumer is under the ambit of time of day

9。 5。

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9.7. The schcnlatic al・ ra118c11lCnt ibl‐ interconnection ol｀ Itoollop & SnlaH Pヽ / Solal・ I)o、、cl・

Plant with the DISTRIBljT10N LICENSEE grid is shown at Annexure¨ 1.Therc shaH be

t、vo rneters.The Metering arrangelllent sha‖ be as per Annexure-1.

9.8. Both the lllcters(Solar and Bi― directional)ShaH bc insta‖ cd after testing and sealing in

DISTRIBUTION LICENSEE MRT lab for which consumer shall deposit necessary

testing fee as prescribed in Bihar Electricity Supply Code, 2007 and its amendments

issued from time to time.

9.9. The Net Meter shaH be instaHed at the interconnection point of the eHgible consumer

with the network of DISTRIBUTION LICENSEEo The solar meter shall be installed at

the delivery point of the solar energy systern to measure the solar energy generated.

Provided that for the existing consumers,the consumer meter(if any)Sha1l be replaced

with the bi¨ directiona1/net rneter.

PЮvided further that consumers having ABT compliant meters(capable of perfolliling

the functions ofthe Net Meteう shali nOt be required to install additional net meter

9。 10。 The solar ineter shaH be installed at the delivery point ofthe sOlar energy systenl after the

inverter to measure the solar energy generated duly tested by DISTRIBUTION

LICENSEE.

9。 11. These rneters shan have the facility for downloading incter readings using Meter Reading

lnstrument(MRI)。

Provided,if bills are prepared on the basis of MRI downloads or ifmeter reading is taken

on the basis of Remote Meter‐Reading(RMR)and the cOnsumer wished to have a record

ofthe reading taken,he shali be a1lowed so by DISTRIBUTION LICENSEE.

9。 12.The technical standards for meters shall be as per Annexure… IX and shall comply with the

standards specifled by CEA ttom time to time。

Cornmunication Facilities:

9。 13.All the Net meters installed for Roobp PV Solar Power Plant shall have the

9ommunication port and RMR/AMR compatibilityo Solar meters should have

communication port and RMR/AMR compatibility /optical port compatibility for

exchanging realtime infollllation with DISTRIBUTION LICENSEE.

141Page

ハ

9.1+. 'l'lle tlctcr ic'irciilt!s t;l'irrtll: nct ulLricr lnci soiur mcter shall bc iakcn br rhe ciisrril-rr:tiorr

liccrrscc anci sliali lilrr:t thc basis o1'corlr--,rercial settlcrncnt. 'l-hc ctlpy ol'tlre nrctcr

reading slatelnent slrall be handed overto consurreras soolr ils meter readins is taken.

Energy Accountinq and Settlerrent:

9.15. For each billing period, the licensee shall show the quantum of injected electricity by

eligible consumer in the billing period, supplied electricity by distribution licensee in the

billing period, net billed electricity for payment by the consumer for that billing period

and net carried over electricity to the next billing period separatery;

Provided that in the event the electricity injected exceeds the electricity supplied

during the billing period, such excess injected electricity shall be carried forward to next

billing period as electricity credit and may be utilized to net electricity injected or

consumed in future billing periods;

Provided further that in the event the electricity supplied by the distribution

licensee during any billing period exceeds the electricity generated by the eligible

consumer's rooftop solar system, the distribution licensee shall raise invoice for the net

electricity consumption after taking into account any electricity credit balance remaining

from previous billing periods; The net energy imported has to be billed by the distribution

licensee as per tariffin force applicable to that category of consumers.

' Provided, in case the eligible customer is under the ambit of time of day tariff, as

determined by the Commission from time to time, the electricity consumption in any time

block (e.g., peak hours, off-peak hours, etc.) shall be first compensated with the

electricity generation in the same time block. Any cumulated excess generation over

consumption in any other time block in a billing cycle shall be accounted as if the excess

generation occurred during the off-peak time block.

Provided also that the excess electricity measured in kilo-watt hour may only be

utilized to offset the consumption measured in kilo-watt hour (kWh) and may not be

utilized to compensate any other fee and charges imposed by the distribution licensee as

per the instructions of Bihar Electricity Regulatory Commission

Provided also that the distribution licensee in addition to consumer tariff shall be

eligible to raise invoice for any other charges as allowed by the Bihar Electricity

Regulatory Commission.

151Page

⌒

f .i6. Ihc clcctriciir serrct'air-c irr tl':c rtloliop solur srslcnr ()j'irn c):giblc c()nsun)ci shall ttttl bc

nrore than 9096 ol-thc clr'ctricitl ctlnsuntptiorr b1'rhc cligiblc ct.rttstt:itct'41 thc crtd ol'thc

scltlenrerrt pc'riod.

Provided tlrat such injection of the above mcntioned eligible consutner shall be

settled only as per net metering arrangement at the end of each settlernent period;

Provided further that in the event the electricity generated exceeds 90% of the

electricity consumed at the end of the settlement period, no payment shall be made by the

distribution licensee and shall not be carried forward to next settlement period and the

same shall be treated as unwanted/ inadvertent injection. Provided also that at the

beginning of each settlement period, cumulative carried over injected electricity will be

reset to zero.

However, if net electricity injected in the month of March remains unadjusted, it

may be allowed acarry forward for the next billing month.

9.17. lncase of defective net meter/ bi-directional meter, the methodology for average billing

or assessment as described in Bihar Electricity Supply Code, 2007 and its amendment

issued from time to time shall be followed to bill the consumer. During net meter

defective period, the injection to the grid is to be assessed as per available meter reading

records for that corresponding period in previous year or subsequent year (in case meter

becomes defective within one year of its installation).

9.18. In case of any dispute in billing it would be settled by the Consumer Grievance Redressal

Forum (CGRF) and if issue still remains unresolved shall be settled by the Bihar

Electricity Regulatory Commission following appropriate procedure.

9.19. For proper energy accounting and billing records, the energy input at the interconnection

point through the Net Meter by the eligible consumer is to be recorded as power purchase

whereas the quantum of energy supplied by distribution licensee is to be recorded as sale

of electricity to the consumer. Energy accounting record is to be maintained by every

Electric Supply Sections, Every Electric Supply Sub-divisions and every Electric Supply

Divisions, and a column may also be added in statement no. -l for proper record of Net

Metering.

1

lSlPage

,r

I0. I'cnaltv ur Conr-pcnsation

In casc o1'lirilure oi'net nretcring s\slcur- tlre provisions ol'penaltv or conrllc-rrsatiorr shall

be as per tlre provisions ol the Standard of Perlbrmance' regulations lbr Distribution

Licensee or as deterrnined bv the Conrmission fiom time to time.

11. Permission from Electrical Inspector:

ll.l. Safety and installation certificates for the installation of Solar PV should be obtained

from the Electrical Inspector, Govt. of Bihar for all HT/LTIS and commercial

Connection. Other LT Domestic consumer will have to produce Green Card from

licensed Electrical Contractor. Regarding installations and wiring following provisions

of clauses and the amendments issued from time to time with regard to Bihar Electricity

Supply Code,2007 is to be adhered:-

"6.1 The work of wiring in the consumer's premises shall be canied out by oLicensed Electrical Contractor and should conform to the Indian ElectricityRules, 1956 until rules/regulation are framed under section 53 of the Act as wellos the rules of the Fire Insurance Company in terms of which the building is

insured. The materials usedfor wiring shall confurm to the relevant specifications

of the Bureau of Indian Standards or its equivalent. V[/herever applicable the

materials used shall bear ISI or IEC mark As soon as the consumer's installation

is completed in all respects and tested by the consumer's contractor, the

consumer should submit, the contractor's test report to the licensee. The test

report form (Annexure-3).fo, this purpose shall be submitted to the local ffice ofthe licensee.

6.2 As required by rule 45 of the Indian Electricity Rules, 1956, no electricalinstallationwork, including addition, alteration, repair and adiustment to existing

installation - except the replacement of lamps, fons, fuses, switches and other

component parts of the installations - which in no way alter the capacity orcharacter of the installation, shall be caruied out in the premises on behalf of any

consumer or owner for the purPose of supply of energt to such consumer orowner, except by an electrical contractor licensed by the State Government in this

behalf and under the direct supervision of a person holding a certiJicate ofcompetency or by a person holding a permit issued or recognized by the State

Government.

6.3 Any person committing breach of rule 45 shall render himself liable to

punishment under rule 139 of the Indian Electricity Rules, 1956.

6.4 Provisions of rule 32 of the Indian Electricity Rules, 1956 should be compliedwith in respect of consumer's installation. No cut-out, link or switch other than a

linlred switch arranged to operate the earthed and live conductors simultoneously,

17 lPage

..tltull ba in.:t't'lctl irt tlu, t'tttttlttt tot' tt/ tlt,, (()n.\tultL't''\ irt.tltrlltttion lt) b( L,onttL,L.t(tl! o l lta ttt, t r t t't t l co t ttl t t t' l r t r r t f l l t c l i c.t: tt.sc a'.: .\ i,.\/(,//1.

11.2. Pou'er to give directions:-'l'hc ('orrrlission nra-\ ll'onr tinrc to lirnc issue sucl-: ciirections

and orders as considered appropriate lirr the irnplc'nterrtation ol'thcse Rcgulations.

I 1.3. Porver to relax:-The Commission ma1' b1, general or special order- fbr reasons to be

recorded in writing. and after giving an opportunity of hearing to the parties likely to be

affected may relax any of the provisions of these Regulations on its own motion oron an

application made before it by an interested person.

11.4. Power to amend:-The Commission may from time to time add, vary, alter, suspend,

modify, amend or repeal any provisions of these Regulations.

I 1.5. The Mandatory checks before and after connecting solar roof-top PV power plants is

available at Annexure-VlI.

12. Applicability of Solar Renewable Purchase Obligation & Renewable EnergyCertificates

The quantum of electricity generated by the rooftop solar system of eligible consumer,

who is not defined as obligated entity, from the rooftop solar system under net metering

arangement shall qualify towards compliance of Solar Renewable Purchase Obligation(Solar RPO) for the DISTRIBUTION LICENSEE. The quantum of power generated by

the rooftop solar system will be measured as per the meter reading of the solar meter.

13. Applicability of Other Charges

The rooftop solar system under net metering arrangement, whether self-owned or thirdparty owned installed on eligible consumer premises, shall be exempted from banking

and wheeling charges and cross subsidy surcharge. Eligible consumer availing net

metering facility cannot avail banking facility.

Provided that banking shall be as per the BERC (Terms and conditions for determinationof rarifffor solar energy sources) (3rd amendment) Regulation s,2014.

sd/-(D.N.TrWARr)

Chief Engineer (Com.)

18 lPage

⌒

\'lciltl l)alcd.… ...... .・ ・・・・ …

L'opr lorsarded to (i\1-(-ur:r-('li. PESt,. Paina/all D(iM-Cr:rl-ESl:. I:lcctricSuppll Area/all I:lcctrical Superintending Engineers. Elecu'ic Suppll,Circlc'iall l:lectricalExecutive Enqineers. Electric Supply'Division/all Assistant Electrical l:rrgirreers. Electric Suppl_"-

Sub-division/all Jurrior Electrical Engineers. Electric Suppll, Sectiorr. NBPDCI- lbr infbrrnation

arrd necessar), actiorl.

Sd/―

(DoN.TIWARI)Chief Engineer(Com。 )

Memo No Dated

Copy forwarded to Director (Operations), NBPDCL/SBPDCL/GM (HR &Admin.)/GM (F&AyGM (Revenue)/all Chief Engineers/DLA/CDBA, NBPDCL/Chief Engineer

(Com.), NBPDCL for information and necessary action.

Sd/―

(DoN.TIWARI)Chief Engineer(Com。 )

Memo No...

Copy forwarded to OSD to CMD,

for kind infbrmation.

Dated

BSP(H)CL/OSD to MD,NBPDCL/SBPDCL

Memo No

Copy forwarded to

information and necessary action.

Sd/‐

(DoNoTIWARIIChiefEngineer(Com。 )

Dated..… 2F。 /。 9。1.だ。1■

Dy.Director;BREDA,Sone Bhawan,Patna,Bihar for kind

31

＼

Chief Engineer (Com.)

191Page

ハ

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SPD― Surge Protti■t… ?幾 ―Ptt Ca量麟mttg UElit,SM― SoLf G園画面ogL Metr,働ふCo―r]磯億響

“mter“Ⅱ轟 iOndttt→

tコ踏anl… 雹滅筆磁電田皿襲 yvtty“評圏鮨略響 Si掟 岬 田糧颯

S、‐、碑IIl,i(le Glid Side

AC LclatOr

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201Page

A

Anncxurc-l I

Anlllication lbr Net Mctering and (irid (lonncctir itv of (irid Connectcd lloofl<ln & SnrallSolar Photovoltaic Svstcm

-Io.

AEE

Electric Supply Sub Division................

Date:

l/we herewith apply for a solar energy net-metering connection at my service connection and forthe solar PV plant of which details are given below :

1 Name of applicant

2. Address of applicant

3. Service connection number/Account

Number & details

4. Single Phase/Three Phase

5. Telephonic/mobile number (s)

6. E‐maiHD7. Sanction Load (KW)/Contract Demand

(KVA)8. Category (DSNDS/LTIS/HT etc)

9. Details of Consumer Meter, Meter No,

Make

10。 Solar PV'plant capacity (kilo watts)

Solar grid inverter make and type

12。 Solar grid inverter has automatic

isolation protection (YN) ?

13. Has a Solar Generation Meter been

installed (YN) ?

14. Expected date of commissioning ofsolar PV system

15。 Details of test certificates of Solar PV

planUinverter for standards required

under the Regulations

16。 Whether applicant MNRE subsidy is

sanctioned (YN) ?

17. SPV already Proposed/connected in KW

21 lPage

ハ

l)ocunrclrts Enclosetl :

I. ('opr o1'latcst Elcctr"icitl llill.2. ('op1 o1'subsidr sanction letter ll'orr \'t\ll[: (il'Applicablc)3. C'op1, cll''I'est reports of Equipnrerrts.

Certificate:- The above stated infbrrnation is true to the best o1'ml,knorvledge.

Place : Name :

Date: Signature :

ACKNOWLEDGMENT

Received an application for a Solar Net-Metering Connection from

Name of Consumer:

Service Connection Number:

Date:

Solar Plant Capacity:

Application registration No:

Remarks:

Annexure‐ III

PERFORMA FOR TECHNIAL FEASIBILITY REPORT

(Signature& office Seal)

SI。

No.

Parameter DISTRIBUTIONLICENSEEObsewation

A. Applicant Details :

1 Name of the Applicant2. Address of applicant3. Application Regi stration Number4. Category (DSNDS etc.)

22lPage

A

一ヽ

一，０・

fl pc o1'c9rr1cctit111 : lp)r l. I

Size ancl t5 pc o1'l-'l' ('ablc ( I

.i,:i pi, r i'iill-----I)lrasei'31)hase')

7. Phorrc/nrobi le \ urnbcr

8. Il-rnai

9. Sanctioned Load irr KW/Corrtract demand in

KVAB. Distribution Transformer Details :

l Location

2. Capacity in KVA3. TotalConnected load in KW4. Tong tester reading of current in all 3 phase

and neutral

5. SRTPV already Proposed/connected in KW6. Proposed SRTPV capacity in KW7. TotalGeneration Capacity (5+6) in KW8. Type of LT Cable/Conductor

9。 Whether the transformer capacity is adequate

to deliver the proposed SRTPV system in

addition to existing solar RTPV systems

Note : (The Transformer shall be loaded up

to l5o/o of capacity)

C. Feeder Details :

I Name ofthe ll KV feeder

2. Name ofthe 33/H KV Sub¨ Station

3. Type of the conductor/cable (size)

4. Total connected load on the feeder in KVA

5。 Total capacity (KWp) of SRTPV systems

connected on the feeder

6. Peak load on the feeder in Amps

23 lPage

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7 ヽヽ hcthcl・ Iぅ「(ぅl)()｀

Cti |`く l〕)ヽ/ ill、 11111[lliぃ 1l iゝ cヽ、 /ヽ(o+(il｀ it i、 ln t)1 1し a、 ibic.

techn ictlll、 1し asilぅ Ic()「 llt)t Sitllc l・ eaヽ ()lη 、)

Enclosure: I I KV feeder &LT Distributiorr Single line diagrarn of the transformer.

It is to certify that the above said SRTPV installation is technically feasible.

Name of Officer:

Designation:

Oflice Seal:

Annexure-IV

Inverter Standards

Inverter should comply with IEC 61683/15 61683 for efficiency and measurements and shouldcomply with IEC 60068-2 (1,2,14,30)/Equivalent BIS Standard for environment testing.

Inverter should supervise the grid condition continuously and in the event of grid failure (or)under voltage (or) over voltage, solar system should be disconnected by the circuit Breaker/Autoswitch provided in the inverter and shall comply with requirements specified at regulation 8 ofthese Regulations.

Harmonics Standards

Asperthe Standard IEEE 5lg,thepermissible individual harmonics level shall be less than3%o(for both voltage and current harmonics) and Total Harmonics Distortion (THD) for both voltageand current harmonics of the system shall be less than 5olo

Technical and interconnection requirements Parameters

Parameter Reference RequirementOverall conditions of service Bihar Electricity Supply Code,

2007Compliance with theand conditions of Supply

terms

Code

24lPage

!

ハ

(lr"'il1 I (ii"i itu,"i.,,,ii (l ellll・tll l:lcctl‐ :ぜ il、

(Grid Standard)

2010

,\ uthrlritrllcgu latitlns

('onr;:lia:rcc n ith (ilitislarrdar:ds as regards tlrc

licc;uenc1'. voltagc arrd

protection coord i nal iorr.

Equiprnenls BIS/1EC/1El]E I BIS/1EC/1EEE

Meters Central Electricity Authority(lnstallation &. Operation ofMeters) Regulations, 2006 as

amended from time to time.

Cornpliance rvith the

specifications of the meters.

Safety and supply Central Electricity Authority(Measures of Safety and

Electricity supply) Regulations,

2010

Compliance with safety

provisions for electrical

installations and apparatus

Harmonic Requirements

Harmonic Current

IEEE 5I9CEA (Technical Standards forconnectivity the Distributed

Generation Resources)

Regulations, 2013

The Total Harmonic

Distortion (THD) for voltage

at the interconnection point

should not exceed 5% for the

current distortion limits, the

Total Demand Distortion(TDD) in terms of ratio ofavailable short circuit current

to the demand current (lsc/ll)should remain within limitsspecified for various

harmonics for different TDDvalues.

Synchronization IEEE 5I9CEA (Technical Standards forconnectivity of the Distributed

Generation Resources)

Regulations, 2013

Photovoltaic system must be

equipped with a grid

frequency synchronization

device. Every time the

generating station is

synchronized to the electricity

system, it shall not cause

voltage fluctuation greater

than +/- 5%o at point of inter

connection.

Voltage IEEE 5I9CEA (Technical Standards forconnectivity of the Distributed

Generation Resources)

Regulations, 2013

The voltage-operating windowshould minimize nuisance

tripping and should be withinoperating range of 80% tol00o/o of the nominal

251Page

^

-i'.,,l,i..Jt"ii r.l:usr'. l lrc

1-.ittltor oltaic \\ siL'r')) l:rc g:'ici

rr ithin a clcarinLl lillc ol' 2

seconds. tlre photo\ oltaicsvstem must isolatc itsell'liornthe grid.

Flicker IEEE 5I9CEA (Technical Standards forconnectivity of the DistributedGeneration Resources)

Regulations ,2013

Operation of Photovoltaic

system should not cause

voltage flicker in excess of the

limits stated in IEC 61000standards as follows :

Shortterm flicker (Pst) :

The flicker severity

evaluated over a short

period to time (10

minutes) should be,_1\-1.

Long term flicker (Plt) :

The flicker severity

. evaluated over a longperiod of time(typically 2 hours)

should be <:0.65.Frequency IEEE 5I9

CEA (Technical Standards forconnectivity of the DistributedGeneration Resources)

Regulations,2013

When the Distribution system

frequency deviates outside the

specified conditions (50.5 Hzon upper side and 47.5 Hz on

lower side). There should be

over and under frequency tripfunctions with a clearing timeof 0.2 seconds,

DC itteCtiOn IEEE 519

CEA (Technical Standards forconnectivity of the DistributedGeneration Resources)

Regulations,2013

Photovoltaic system shouldnot inject DC power morethan 0.5% of full rated outputat the interconnection point orlYo of rated inverter outputcurrent into distributionsystem under any operatingconditions.

Power Factor IEEE 519

CEA(TechniCal Standards for

When the output of theinverter is greater than 50Yo,

26 lPage

A

c()nirccti\ ilr rll' litc(lc'ncr:ltior:

Rcqulations. l0l3

Distributcci

Restlurcc's )

tirc po\\er outllul lj'tl;ti tl.lc

inr,erter shall havc a lauui:rg

po\\,er thctor of srealcr tlran

0.9.Islarrding and Disconncction IEEE 519 The photovolta

Notes: The Standard/Specification shall be subject to amendmentVrevisions from time to timeas duly notified by BERC/DISTRIBUTION LICENSEE.

CEA (l-echnical Standards forconnectivitl, of the DistributedGeneration Resources)Regulations,20l3

r ne pnotovottatc s\stem must

island/disconnect itself rvithinIEC standard stipulated timein the event of fault. voltage orfrequency variations.

Overload and Overheat IEEE 5I9CEA (Technical Standards forconnectivity of the DistributedGeneration Resources)

Regulations,2013

The inverter should have thefacility to automaticallyswitch off in case of overloador overheating and should

restart when normalconditions are restored.

Paralleling Device IEEE 5I9CEA (Technical Standards forconnectivity of the DistributedGeneration Resources)Regulations,2013

Paralleling device ofphotovoltaic system shall be

capable of withstan ding 220%of the normal voltage at theinterconnection point.

2TlPage

ハ

,,\nnerurc-\'Spccilication tirr lncfcrs lbr nct mcle ring(a) \4etr-rr lirr Sttla:' (ietre'raliott \{caslircllcttls :

Solar Mctcr' \1a.lor1'echnical Parantetcrs

IC

(b) Meter for Net-Metering Measurement :

Net-Meter Major Technical Parameters

i COnnCCtiVit〉

l at‖ kV&

SI.

No.

Technical

Parameters

じonnectivity

at 240V

voltage levcl

Connectivity at 400 V voltage

level

at ilkVこ

above voltage

level

Whole Current

meters

Whole

Current

rneters

CT operated CT―PTOperated

l Applicability Solar plant

capacity upto

5kw

Solar plant

capacity

above 5 kwand up to 70

kw

Solar

capacity

above

and up

kw

plant

０

５

　

ｔ

ｂ

７０

HT/EHVsupply

2. Number ofphases and

wires

Single Phase 2

wlre

Three Phase 4

wireThree Phase 4

wire

Three Phase 4

wire

3. Measurand (s) KWH KWH KWH,kVAh,KVA, PF,Maxo demand

KWH,kVAh,KVA, PF.Maxo demand

4. frequency 50+50/O Hz 50+5%Hz 50+50/O Hz

5。 Current Rating 10-60 10‐60 I Amp I Amp

6。 Accuracy class 1.0 1.0 0。5S 0。2S

7. Indian Standard

or IEC to which

conforming

lS 13779-

1999

lS 13779-

1999

lS 14697, lS

13779

lS 14697, lS

13779

8. Import-exportfeature

Forward

import

Forward

import

Forward

import

Forward

import

9. Communication

Port/Protocol

Optical/DLMS Optical

Rs。232/DLMSOptical

Rs.232/DLMS

Optical

Rs。232/DLMS

281Page

| |

ハ

SI. Technical

C onrrcclir,ilr at

ler el

)(o. I ParametersWhole Currentmeters

Whole

Current

meters

CT operated CT―PT

Operated

1 Applicability Solar plant

capacity upto

5kw

Solar plant

capacity

above 5 kwand up to 70

kw

Solar plant

capacity

above 5 kwand up to 70

kw

HT/EHVsupply

2. Number ofphases and

wires

Single Phase 2

wireThree Phase 4

wire

Threc Phase 4

wire

Three Phase 4

wire

3. Measurand (s) KWH KWH KWH,kVAh,KVA, PF,Max.demand

KWH,kVAh,KVA, PF.Max.demand

4. frequency 50+5%Hz 50+5%Hz 50+5%Hz

5。 Current Rating 10‐60 10¨60 I Amp l Amp

6. Accuracy class L0 1.0 0。5S 0.2S

7. Indian Standard

or IEC to whichconforming

IS 13779-

1999

IS 13779‐

1999

lS 14697, lS

13779

1,14697,lS13779

8. Import-exportfeature

Import &Export

Import &Export

Import &Export

Import &Export

9. Communication

Port/ProtocolOptica1/DLMS Optical

Rs.232/DLMSOptical

Rs.232/DLMSOptical

Rs。232/DLMS

Annexure-VI

Net Metering inter connection asreement

This Agreement is made and entered into at (location) on this (date) ay ofbetween the eligible consumer, by the name of

29 lPage

(()1lnccllv】 1、

at 240V

i O`ltagc levcl

('o:r:tcctiviir"r IlkV&.+00 V voitilsc-

abt>vc voltage

I letr,el

(mOnth) veal

A

l",ar i:rg pt'e:rtist's at (ac1dt'css) l-s ilrsi pali\ an(i l)j-*t:'ibr:titr:t I.icc:rscc (helci:l iillcr

callcd as l)isco:tt) anti rL'presL'lltcci i)\ ((lcsiご :1をlli()11 (、 1｀ ()1｀liccl・ )and ha、 i113 ils

1・c2istcl‐ Cd 01licc at(addrcss) as scctt:.tti part) ol' tltc agree lrle'tlt anci n hcrcls. the

Discoln agrccs t()proVidc 8rid conncctiヽ it)lo thc liligiblc Consulncr ibr illicctiOn ol｀ thc

electricit-v generated l}om his SPV plant ol'capacitl' kilorvatts into the power

system of Discom and as per conditions of this agleemetrt and BERCI( Rooftop Solar Grid

Interactive System Based on Net Metering)Regulations.20l5 issued by the Bihar Electricity

Regulatory Commission, Both the parties hereby agree to as fbllows :

l. Eligibilityl.l Eligibility for net-metering has been specified in the relevant order of the Bihar

Electricity Regulatory Commission. Eligible Consumer has to meet the standards and

conditions for being integrated into grid/distribution system.

1.2 The maximum capacity of an individual rooftop PV system would be equal to

the sanctioned load of the consumer.

1.3 Consumers having dues of Electricity will not be allowed for Net Metering

Scheme

2. Technical and Interconnection Requirements

2.1 The Eligible Consumer agrees that his solar generation plant and net metering system

will conform to the.standards and requirements specified in BERC( Rooftop Solar

Grid Interactive System Based on Net Metering)Regulations,2015 and in the

following Regulations and codes as amended from time to time.

(i) CEA's (Technical Standards for connectivity of the Distributed Generating

Resource) Regulations, 20 I 3.

(ii) Central Electricity Authority (Installation and Operation of Meters) Regulation

2006.

(iii) Bihar Electricity Supply Code 2007

2.2 Eligible consumer agrees that he has installed or will install, prior to connection of

photovoltaic system to Discom's distribution system, an isolation device (both

automatic and inbuilt within inverter and external manual relays) and agrees for the

Discom to have access to and operation of this, if required and for repair &

maintenance of the distribution system.

2.3 Eligible consumer agrees that in case of a power outage on Discom's system,

photovoltaic system will disconnect/isolate automatically and his plant will not inject

power into Licensee's distribution system.

2.4 All the equipment connected to distribution system shall be compliant with relevant

International (IEEE/IEC) or tndian Standards (BIS) and installation of electrical

equipment must comply with Central Electricity Authority (Measures of Safety and

Electricity Supply) Regulations, 201 0.

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2.5 I.,iigihle ('t;nsr::tie r aslccs that iiccrrscc u ii: s;:eci1'r thc in1,-'r"lhcc',,'lr:icrctlnrrccti()rl

p<lirrt arrci nrclcrinu unit.

2.6 I:ligible (.or:sunrerand Iiccnsce asrcc to conrplr u,ith thc- rc-lcrant Cl:A rc'gulations in

respect ol' operation and maintenance ol' the plarrt. drawing arrd dia-rrranrs. site

resporrsibilitl.' schedule. harmonics. synchronization. voltage. li'equency. llicker etc.

2.7 Due to Discorn's obligation to maintain a safe and reliable distribution s)'stem-

Eligible Consumer agrees that if it is determined by the Discom that EligibleConsumer's photovoltaic system either causes damage to and/or produces adverse

effects affecting other consumers or Discom's assets, Eligible Consumer will have todisconnect photovoltaic system immediately from the distribution system upon

direction from the Discom and correct the problem at this own expense prior to areconnection.

2.8 The consumer shall be solely responsible for any accident to human being/animalswhatsoever (fatal/non-fatal/depanmental/non-departmental) that may occur due toback feeding from the SPG plant when the grid supply is off. The distribution

licensee reserves the right to disconnect the consumer's installation at any time to the

event of such exigencies to prevent accident or damage to man and material.

In case of any accident , consumer will be solely responsible for anycompensation if any to be paid to deceased/victims as decided by any court/stateGovt./other statutory bodies . So consumer will ensure the functioning ofislanding system of solar modules 24*7

3. Clearances and Approvals3.1 The Eligible Consumer shall obtain

(environmental and grid connection

system to the distribution system.

Net metering facility

4.1 Eligible Consumer will generate solar power for self-consumption and feed excess

power into the grid of DISCOM.

4.2[n the premises of Eligible Consumer, a meter will be installed by DISCOM having

the feature of recording both the import and export values, besides complying withother parameters notified in CEA metering regulations and DISCOMs procedures forarriving net energy for the billing period.

Access and Disconnection

5.1 Discom shall have access to metering equipment and disconnecting means of the

solar photovoltaic system, both automatic and manual, at all times.

5.2In emergency or outage situation, where there is no access to the disconnecting

means, both automatic and manual, such as a switch or breaker, Discom may

disconnected service to the premises of the Eligible Consumer.

Liabilities

all the necessary approvals and clearances

related) before connecting the photovoltaic

4.

5。

6.

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⌒

6 1 111iЦ iblc(・ o ll sヒ lnlcl・ 〔ind I)isc(、〕11 hヽall indclll:lil｀ Ctlch olhcr it)1^danぅ tlビ c、 ()1・ adヽ ,cl、 c

cllし ct、 11・ ()n3cithcr pal・ 1)1、 1lCピ li=cllcc Ol・ illtcllti(ヽ n tl:11l i、 condtict in thc conlnccti()|⊃ ti n(1

0PCrilti()1l ol｀ ph()lov()1laic s)、 lcin(り I)isconl'、 distribLlti()ns、 stelη .

6.2 E)iscolll and F_littible(ご onstl11lCl・ ShaH nOt bc liablc lo cach other for an)loss ol｀ prollls

or revcnucs,business interruption losscs. loss ol｀ contract or loss of 8ood、 vill、 or ibr

indirect,consequential. incidcntal or special dan]ages. illcluding, but not lilη itcd to.

punitive or exemplary damages. 、vhether any ol｀ the said liability, loss or damages

arise in contract or other、 vise.

6.3 Discorn shaH not be liable for delivery or realization by Eligible Consumer for any

flscal or other incentive provided by the Centra1/State(3overnment beyond the scope

specifled by the Commission in its relevant Order.

6.4 The E)iscorn may consider the quantum of electricity generation from the roo■ op

solar PV system under net metering arrangement towards RPO。 (Applicable only in

case ofEligiЫe Consumer who is not deflned as an Obligated Entity)。

6。5 The proceeds from CDM benents shaH be retained by thel〕 iscom.

7. Commercial Settlement

7.l All the commercial settlement under this agreement shaH follow the Net Metering

Regulations,2015 and its amendments from time to time issued by the BERC.

8. Connection(Costs

8.l The Eligible Consumer shan bear aH costs related to setting up of photovoltaic

systenn including metering and interconnection costs.The Eligible Consumer agrees

to pay the actual cost of modiflcations and upgrade to the service line required to

connect photovoltaic system to the grid in case it is required.

9. Interruption or Reduction of delivery

9。 l The DISCOM shali not be OЫ igated to accept and may require Eligible Consumerto

intelTupt or reduce deliveries when necessary in order to construct, instan, repair,

replace,remove,investigate,or inspect any of its equipment or part of its systern;or

if it reasonably deterrnines that curtailrnent, interruption, or reduction is necessary

because of emergencies, forced outages or compliance with prudent electrical

practiceso Whenever possible, the DISCOM shan give the Eligible Consumer

reasonable notice ofthe possibility that interruption or reduction of deliveries inay be

requlred.

10。 Theft ofelectricity Or unauthorised use ofelectricity

10。 l Eligible Consumer,found indulging in theft of electricity or unauthorized use of

electricity shan pay the pena1/additional charges as may be levied by the E)IS(〕 OMbesides disconnection of supply as per the provisions of IE Act 2003, Bihar

Electricity Supply Code 2007 along with its amendments and General Terrns and

Conditions of supply.

11.Ternlination

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I l.l -ll.:c I-lisinlr'Coltsu:-:rer cau lcrrriniltc ilurcL-u1ent at anv ii:lc br providirrg I)isconr

rr ith 90 drr s ,plior noticc.

ll.2 Discorr has the riqht to terminate Aqrcenrent on 30 ciars prior urilten noticc. il'Eligible ('onsumer comrnents breach ol'arr1'of the terrn of this Asrec'rnent and does

not remedl.'the breach rvitlrin 30 da1,s ol'receiving writtcn notice liorn Discom of thebreach.

I 1.3 Eligible Consumer shall upon termination of this Agreement. disconnect thephotovoltaic system from Discom's distribution system in a timely manner and toDiscom's satisfaction.

In witness, wherein, Mr..... ...for and on behalf of ...... .........(EligibleConsumer) and Mr... ......for and on behalf of ..... .......(Discom)sign this agreement in two originals.

AI\iNEXURE.VII

Mandatory check before and after connecting the SPV system with DISCOM Network andsteps for maintenances of network where such connectivity exists

l. Mandatory safety precautions/features :

The following are the mandatory safety precautions which will be taken care before and

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(a) Alr i:rbililt lrrverter rclur uiricJr trips o:r l)iseor:r \illrj)l\ lirilure arrd tlrrrs llrcvcnls ilr)\'s()iar l)()\\cr irticclirrrt i() thc l)iscom \c'tutl:'k lilc:r tltcrc is rto 1-lorrcr lioil I)isctlrtt.-l'hc

anti-islanciing protcction shall be lcstcti b1 thc:'espcctir,,c',AI;[ (ESSI)) anci Al:l:(Mlfl') ofllcers during lhe re'lease o1'connectiorr.

(b) The Solar PV s)-stem slrould be separatelv srounded/ earthed. A minimum ol't\\oseparate dedicated and interconnected earth electrrdes must be used for the earthing

of the solar PV system support structure rvith a total earth resistance not exceeding 5ohms.

(c) Lighting Arrestor also to be provided for SPV.

(d) Manual isolator switch at an easily accessible location with locking facility shall be

provided.

(e) Caution Stickers shall be used with the green background and the text "Solar PVSystems" written in white letters. The size of these stickers shall be l0 CM (width) X7 CM (height) with the text clearly printed in the centre of the sticker.

(f) All SPV consumers should have a mandatory sign board fitted near the existing meter

reading terminal stating that 'This service is fitted with an LT grid connected SPVplant'. The Solar PV System Caution Stickers shall be fixed under the supervision ofthe AEE (ESSD) in the following locations.

a. On or near to meter of service with grid connected Solar PV System.

b. On the Consumer main switch, of a service connection with a grid connectedSolar PV System.

c. On LT poles with grid connected Solar PV System at height of about 1.50 meterfrom the ground.

d. On LT feeder pillars with grid connected Solar PV System on the street - facingdoor of the feeder pillar.

e. On each of the LT take offpoles of a Distribution Transformer to which Solar PVSystem are connected.

f. On substation end of HT feeder having Solar PV system.g. A list of service connections with grid connected Solar PV Systems shall be

available at the AEE (ESSD) office and the 33/l I KV pSS.

h. A record may be maintained at the AEE (ESSD) office of each SPV plantcommissioning date and other details.

i. The SPV connection details of pole/pillar box/DT/SS feeder endwise may bemaintained at AEE (ESSD) office.

(g) During planned/forced maintenance work on Discom network, before taking up thework in hand besides ensuring all other provisions such as line earthing, de-energisation of the line section where the work is to be carried out as per prevailingnorrns further it should be ensured that supply from such small solar roof-top PVpower plants are not back fed and supply should also be disconnected by manualisolating switch with locking facility installed in the premises of such consumers andensuring proper earthing.

2 The check list for AEE (ESSD) and AEE (MRT) officers before release -of

connection.

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A

A. C<l::rpt>rrerri Inspcction ('hccklist :

SIo N()。 Itcnr tvpc YES N0

i l. , Installation lal,out - is it as per drau ins '.)ilil

Inverter IS/lEC standards qualified

3. PV panel IS/lEC standards qualified

4. PV isolators/PV cables IS/lEC standards qualified

5. AC disconnected manual switch provided withlocking arrangement

6. Whether Meter testing Certificate approved byMRT ? (as per metering regulations of CEA)

7. Any other critical component IS/IEC standards

certified

B. Grid connected Functional Safety Checklist :

I-

SI.No. Item type YES NO

1 Check whether solar generation stops

automatically when DISCOM supply is made off2. Bi-directional flow recorded on DISCOM Meter

3. Consumption (lmport) only mode ok ?

4. Check all earthing points as per standard

5. Solar and Bi-directional meter tested & sealed byDISCOM Meter testing lab

6。 Solar and Bi-directional meter tested & sealed byDISCOM Meter testing lab.

7. Check whether manual Isolating switch is

installed at accessible location with lockingarrangement.

8。 Check whether manual Isolating switch stops

feeding supply in Discom network when in OFFposition.

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Annexure VIII

MISCELLANEOUS AND GENERAL CHARGES APPLICABLE TOCONSUMER UNDER NET METERING SCHEME

l. Meter Rent

Particulars ApplicableCharges

r) Single Phase LT Bidirectional Meter Rs。 75/1■onth

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A

lう )l hl‐ cc l)hasc l´ 1 1〕 idil・ccti(〕 l]alヽletcr

c) I-hrce Phasc l-1. Ilidirccrional \4crcr.u ir jr C I

Rs. l-5Ointonth

Ils. 7-50 / month

d) ll kv I{'l'S-l

Metering at ll kV Bidirecrional Meter

Rs.1000/nlonth l

Note: For those consumers who are prepared to pay the entire cost of metering

arrangement are allowed to pay the cost estimated by the DISCOM and no meter rent

shall be collected from such consumers and from the consumers opting to provide

their own meter from the Approved list of vendors available with DISCOM.

Application fee:

SIoNo. Category / class Rate

LT Single phase Rs。75.00

LT Three phase Rs.200。00

LT Industrial Rs.300.00

(iV) HT Connection Rs.750.00

Testing/Inspection of consumerrs Installation :

) 33 kV HT Bidirectional Meter &

ing equipment fOr HTS_II

Rs.3000/month

SIoNo。 Category / class Rate

tnitial Test/lnspection Free ofcost

Subsequent test and inspectionnecessitated by fault in installationor by not complying with terms andrcnditions of supply

Rs.200.00 for single phase connection

Rs. 500.00 for three phase [-T connection.

Rs. 1500 for HT connection

Meter Testing fee :

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,t

'l'he mcic; tcsiii:g lr-'c al titc lirllou l:tupror,idc tltcjl orrn llcters

SIoNoo Catcgory/class

'oc cl:.r:'scci lio:.:r tltr' c()rtstlltteis ()i)li:tg t()

Ratc

|(i),hl」 C phase mdo・ (Ll IRs.200.00

Notd:-

l) No meter testing fee shall be charged from the consumers if the meter has

by the licensee.

2) If the meter is tested at third party testing laboratory at the request of the

the fees charged by the testing laboratory will be payable by the consumer.

been provided

consumer"then

RemovinglRe-fixing/Changing of Meter/lVleter Licensee at consumer's request :

SIoNo. Category / class Rate

Cost of material, as

required will be borneby the consumer

Single phase meter Rs.200.00

fhree phase meter Rs.400。 00

lhree phase meter with CT Rs.500.00

(iV) l-Iigh tension metering:quipment

Rs.1200.00

Notes: All the rest charges like Reconnection/ Supervision, Labour and Establishment charge,

etc. for service connection shall be applicable asper the prevailing BERC tariffOrder.

Security Deposit:

a) The consumer shall pay initial security deposit equivalent to the estimated energy

charges including fixed / demand charges for a period of two months or as per the

provisions of Bihar Electricity Supply code notified by the Commission.

b) All Central Government and State Government departments are exempted from

payment of security deposit. However all public sector undertakings and local bodies

shall pay security deposit, as applicable.

phase rneter (LT)

phase meter with CT

3 KV or H KV meterin

38 lPage

Rs.500.00

ts.1800.00

(iV)

ミs.5000.00

ハ

c) j'jrc amorilrt ol'scclirit-r clcposit ohtaineti 1r'olli il.g co:r\r::lcr is liablc to bc c:rjra:rcccl

cvL'i\ \cal'. in .{pril-\,'lar tlJ'rtexl )'car' ()lr ljrr' i'rasis ol'cortsurttl':tion ciLrriir{t 1,.rcr ious

vears or as specific'd in clause 7.15 o1'[]ihar l:lectricitl Suppll C'ode. In default of'

payment ol'additional security deposit. u,hc-rever pal,able alter review. tlre service

line may be disconnected orr serving thirty days notice and connection thereafter can

be restored only if the deposit is made in full along with the prescribed reconnection

charges. and surcharge @1.5% per month or part thereof on the amount of

outstairding.

Annexure-IX

Example of Energy Accounting and Settlement for Solar Rooftop PV system Net metering

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Scenario 1

March month Consumption (lmport) (h)

9Oo/o of march month consumption (i=hx0.9)

Credits from Feb month (f)

Balance Consumption U=i-f)

lO% of march month consumption (k=h*0.L)

Total March Consumption available against march generation (l=j+k)

March month Solar Generation (Export) (m)

Net units billed to consumer in march month or, (-) carried forward to next month (n=l-m)

Scenario 2March month Consumption (tmport) (h)

90% of march month consumption (i=h*0.9)

Credits from Feb month (f)

Balance Consumption 0=i-f)tOoA of march month consumption (k=h*0.1)

Total March consumption available against march generation (l=j+k)March month Solar Generation (Export) (m)

Net units bllled to consumqr,in march month or, (-) carried forward to next month (n=l-m!

Scenario 3March month Consumption (tmport) (h)

90% of march month consumption (i=h*0.9)

Credits from Feb month (f)

Balance Consumption fi=i-f)1@6 of march month consumption (k=h*0.1)

Total March consumption available against march generation (l=j+k)March month Solar Generation (Export) (m)

180

162

65

97

18

115

100

15

34

11

45

100

-55

」瑳一

April 75 100 75 り:1‐ 75May -25 185 ・-25 二1為 0

fet..units billed to consumer,in march month or, C) carried forward to next month (n=t-m|

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