INTERGRATION OF SOLAR INTO M&E DESIGN

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INTERGRATION OF SOLARINTO M&E DESIGN

VIETNAM, JULY 12TH 2019HIEU TRAN –CTO : [email protected]

Hieu Tran: [email protected]

AG

END

AWHY USING SOLAR ENERGY?

HOW SOLAR SYSTEM WORK?

CONCEPT DESIGN FOR FACTORY & COMMERCIAL BUILDING

SOLAR STORAGE FOR GRID BACK UP – TO REPLACE DIESEL GENERATOR

WHY USING SOLAR ENERGY?

BRINGING BETTER FUTURE TO 139 NATIONS. INCLUDING VIETNAM.

• WIND• SOLAR• WATER • ENERGY STORAGE• E.V (ELECTRIC VEHICLE)

VIETNAM/ S.E.A IS CLOSE TO EQUATOR –THUS MAKING SOLAR ENERGY MUCH MORE EFFICIENT AND OFFER MORE COST SAVINGS.

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Solar Grid-Tie System:

MAIN EQUIPMENTS:

1. SOLAR PANEL 2. INVERTER 3. BALANCE OF SYSTEM (CABLE, PANEL, RACKING, METER … )

SOLAR PANEL QUICK OVERVIEW MONO – MONOPERC PANEL: 1. HIGHER EFFICIENCY THAN POLY, THUS

MORE POWER CAN HARVEST FROM SMALLER SPACE.

2. TYPICALLY MORE EXPENSIVE THAN POLY.

POLY PANEL: 1. PROVEN TECHNOLOGY2. TYPICALLY MORE

ECONOMICAL, FASTER PAYBACK

THIN FILM: 1. LOWER EFFICIENCY 2. MORE SUITABLE FOR SOLAR FARM

WHERE LAND PRICE IS LOWER THAN TYPICAL MARKET PRICE

INVERTER QUICK OVERVIEW

STRING INVERTER: 1. POWER RANGE FROM 1-100 KW 2. SUITABLE FOR RESIDENT, COMMERCIAL & INDUSTRY,

SOLAR FARM, SOLAR FLOATING.

CENTRAL INVERTER: 1. POWER RANGE TYPICALLY 1-5MW 2. SUITABLE FOR SOLAR FARM

APPLICATION3. RARELY SEE IN SOLAR ROOFTOP.

MICRO INVERTER: 1. POWER RANGE FROM 250W – 400W2. SUITABLE FOR RESIDENT, SOMETIMES COMMERCIAL

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• Decrease harmful emissions including: Carbon monoxide, Carbon dioxide, Nitrogen oxides

Solar Power Is Good for the Environment

• The sun is everywhere• a clean, green source of energy

Solar Power Is A Free Source of Energy

• Easy to install on every type of roof, or on land (solar farm)

• Low maintenance needed

EASY For Installation and Operation

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• Installing off-grid in island, mountain,… no need to build and wiring for grid.

• Supporting equipment in transportation (boat, car,… )

Making Off-Grid solar system everywhere

• Saving money• Reduce building temperature.• Getting REC (Renewable Energy Certification) ->

good for marketing.

Grid-tie: Acceptable Return on Investment – 10 yrs typically

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Solar Off-grid System (grid backup)

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CONCEPT FOR RESIDENTIAL BUILDING


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CONCEPT FOR COMMERCIAL BUILDING


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* Typical solar rooftop project layout

Electrical schematic


Solar panel installation plan


* A solar rooftop project on top of a bank in HCM city


Support structure in case of weak roof Solar panel after installing


* A solar rooftop project – interconnection arrangement


Wiring to solar AC box


* 10 STANDARDS MUST BE PASSED TO BE ABLE TO CONNECT TO EVN NETWORK


Grounding & Lightning protection Soil resistance test

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CONCEPT FOR FACTORY


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CONCEPT FOR FACTORY


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CONCEPT FOR FACTORY


CONNECTION POINT- At Transformer- At main bus bar in MSB

INVERTER HOUSE- Need large space to arrange equipment

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CONCEPT FOR FACTORY


SOLAR PANEL & MOUNTING STRUCTURE- Large number

CABLE TRAY AND WIRING

Building auxiliary construction

Installing Cat ladder

Building

Cleaning Site

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SOLAR STORAGE


Solar batteries that can store extra solar power for later use

WHAT SOLAR STORAGE?

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SOLAR STORAGE


1. Capacity & Power• Capacity is the total amount of electricity that solar battery can store, measured in

kilowatt-hours (kWh)• Power rating s the amount of electricity that a battery can deliver at one time,

measured in kilowatts (kW)

Specification of Solar Batteries:

2. Depth of discharge (DoD)• The depth of discharge (DoD) of a

battery refers to the amount of a battery’s capacity that has been used

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SOLAR STORAGE


Specification of Solar Batteries:3. Round-trip efficiency• A battery’s round-trip efficiency represents the

amount of energy that can be used as a percentage of the amount of energy that it took to store it

4. Battery life & Warranty• battery will “cycle” (charge and drain) daily.

The battery’s ability to hold a charge will gradually decrease the more you use it.

• solar battery will have a warranty that guarantees a certain number of cycles and/or years of useful life

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SOLAR STORAGE


• Charge at low tariff from authority (EVN in Vietnam)

• Discharge at high tariff. • Ensure 24/7 reliable power.

• Challenge: long payback: ~18 years.

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SOLAR STORAGE


Drawing Diagram in project at HCM City:- No need for diesel generator. Grid is fully back up by solar & storage.

SOME PICTURES IN REAL LIFE PROJECT EXECUTION

Building Inverter Station

Digging Hole for Foundation

Making the first layer of

Foundation


Making Steel Grid

Installing Grid

Grounding Foundation


Making Foundation


Installing Frame

Storage Materials

Inventor

Mounting Structure

Storage Materials

Cable

Cable Tray

Storage Materials

PV Module

Making Safety Fence

Installing Mounting Structure

Moving Materials

Installing Mounting Structure

Assembling structure

Installing PV Modules

Moving Materials

Installing PV Modules

Installing PV

Installing Cable Tray

Wiring DC Cable

Wiring AC Cable

Installing Weather Station

Installing Inverter

Installing Frame

Installing Inverter

Installing Inverter

Commissioning

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REAL TIME MONITORING SERVICE


ENVIRONMENT DATA MONITORING DETAIL POWER GENERATION CO2 & R.E.C INFO

ADVANTAGE:

• IMMEDIATELY IDENTIFY POTENTIAL DAMAGE

• FULL INSUARANCE COVERAGE FOR FACTORIES

ADVANTAGE:

• MONITOR DETAIL PERFORMANCE – ENSURE

CASH FLOW• ENSURE QUALITY AT

HANDOVER TIME

ADVANTAGE:

• READY TO GET RENEWABLE ENERGY CERTIFICATE ANY TIME.

• DATA ACCESSIBLE ANYWHERE, ANYTIME

https://easyview.auroravision.net/easyview/index.html?entityId=16977163

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POLICY UPDATE


2019-2021 2022-2030

BASED ON DRAFT REVISION ISSUED ON APRIL 18TH 2019, BY VIETNAM AUTHORITY:

• RTS SUBSIDY IS UNTIL DECEMBER 2021 • BY 2022, SOLAR TARIFF SHALL BE REDUCED.

BASED ON IN DEPTH RESEARCH FROM G7 COUNTRIES’S ENERGY DEVELOPMENT:

• DIRECT POWER PURCHASE AGREEMENT FROM OFFSHORE WIND FARM.

• DEPLOYMENT OF ENERGY STORAGE AT SCALE.

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PAYBACK EXAMPLE


1.0MW Total cost: 989,000 642,850 Loan ex Discount% 346,150 Equity 23300 1%Client Rooftop 0.70% Project 3,000 Escalated Year 1-25 0.0931 USD/kWhLocation 0 Fixed USD/kWhSystem Size (kWp) 1,000.00 0 per annum USD/kWhkWh/kW 1,396 Irradiaton Factor Refer to pvsyst 2.0% per annum Energy Inflation 3.0% yearly 65% Guarantee Required Land 0 Ha/MWpNet EPC Price 0.979 USD/Wp 10.0% Import Duty 0.000 USD/Wp 10Development Fee 0.010 USD/Wp 100% 20 years Linear Panel high power 30 Permits 2Total Capex Cost 0.989 USD/Wp 10% inverter 8 design 3 scada/ monitor 3 Site prep 3Inverter Price 0.05 USD/Wp 20-Year mounting & fixt 4 Cons labor 5 IRR and Payback Period Pre Tax After Tax Cables+ MC4 4 QAQC 2High Quality Products with European Technology IRR - 20 year 15.6% 15.0% Interconnection 11 Commissioning 2

IRR - 15 year 13.0% 12.3% Protections+tray 3 Contigency 2 IRR - 10 year 0.3% -0.5% Logistic 2 Margin 5

Inverters Payback Period (rounded) 9 10 0.979

EPC BOM BOQ

SUM25 years performance warranty10 years product warranty

Solar Module 10 years product warranty

Marginal Tax Rate

Result of Free Cash Flow Simulation

OPEX Escalation (% per annum)Loan Amount (% of Total EPC Cost)

Interest RateLoan Period (Years)

Depreciable Amount Allowed by Tax Law

Module Degradation Feed-In Tariff O&M Cost (USD/year)

Management Cost (USD/year)Land Lease Cost (USD/year)

FUTURE OUTLOOK

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2019-2021 2022-2030

DINSEN PHASE 2

• ACCELERATE RTS DEPLOYMENT BY UP TO 800 MWP. FOCUS ON MULTINATIONAL FIRMS.

• INTEGRATION OF BATTERY STORAGE FOR INDUSTRIES

• ACCELERATE DIRECT PPA BY WIND PARK DEPLOYMENT

• INTEGRATION OF BATTERY STORAGE FOR INDUSTRIES AND UTILITIES

7/8/2019 50Hieu Tran: [email protected]

INTERGRATION OF SOLAR INTO M&E DESIGN

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