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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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HOW SOLAR SYSTEM WORK?
Hieu Tran: [email protected]
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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WHY USING SOLAR ENERGY?
Hieu Tran: [email protected]
• 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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WHY USING SOLAR ENERGY?
Hieu Tran: [email protected]
• 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
7/8/2019 Hieu Tran: [email protected] 12
* Typical solar rooftop project layout
Electrical schematic
CONCEPT FOR COMMERCIAL BUILDING
Solar panel installation plan
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* A solar rooftop project on top of a bank in HCM city
CONCEPT FOR COMMERCIAL BUILDING
Support structure in case of weak roof Solar panel after installing
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* A solar rooftop project – interconnection arrangement
CONCEPT FOR COMMERCIAL BUILDING
Wiring to solar AC box
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* 10 STANDARDS MUST BE PASSED TO BE ABLE TO CONNECT TO EVN NETWORK
CONCEPT FOR COMMERCIAL BUILDING
Grounding & Lightning protection Soil resistance test
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CONCEPT FOR FACTORY
Hieu Tran: [email protected]
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
Hieu Tran: [email protected]
SOLAR PANEL & MOUNTING STRUCTURE- Large number
CABLE TRAY AND WIRING
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SOLAR STORAGE
Hieu Tran: [email protected]
Solar batteries that can store extra solar power for later use
WHAT SOLAR STORAGE?
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SOLAR STORAGE
Hieu Tran: [email protected]
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
Hieu Tran: [email protected]
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
Hieu Tran: [email protected]
• 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
Hieu Tran: [email protected]
Drawing Diagram in project at HCM City:- No need for diesel generator. Grid is fully back up by solar & storage.
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REAL TIME MONITORING SERVICE
Hieu Tran: [email protected]
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
Hieu Tran: [email protected]
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
Hieu Tran: [email protected]
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
7/8/2019 49Hieu Tran: [email protected]
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]
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