Competitiveness & Economics

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1 Competitiveness & Economics A hybrid case study Luis Fariza Navarro 2011 SunPower Corporation 17th October 2012

2 Powering a new concept: PV Hybrid solution Finding the good energy mix

technology Remote locations with difficult fuel delivery Hazardous energy OPEX due to highly variant fuel price and fuel theft States

3 Value Added of Solar Energy Sun is immediate and unlimited source of energy Sun delivers the equivalent 10,000 times the world energy consumption Reliably predictable source of energy (statistical database) compared to other green power supplies Solar PV is time tested technology Remote locations with difficult fuel delivery Hazardous energy OPEX due to highly variant fuel price and fuel theft States expectancies toward contribution of majors to the development of environmental consciousness OIL PRICE VARIATIONS Source: Prixdubaril.com 3 3

4 Why a hybrid solar PV generator? Mixing power sources to optimize energy according to a specific load profile and strong seasonal effect Technical and economic optimum (peaks of load and strong seasonal effect) Find an optimum LCOE on a bounded economic time 100% solar PV CAPEX: ++ OPEX: - - Lower Hybrid system 100% diesel generator + grid CAPEX: - - OPEX: ++ Higher t 0 Hybrid solutions enable the revamping of existing power sources with a global energy solution 4 4

5 Why a hybrid solar PV generator? LCOE I t : Investment expenditures in the year t. M t : Operation & Maintenance expenditures in the year t. F t : Fuel expenditures in the year t. E t : Electricity generation in the year t. r: Discount rate n: Life of the system 100% solar PV 100% diesel generator + grid CAPEX: ++ OPEX: - - Lower Hybrid system CAPEX: - - OPEX: ++ Higher t 0 Hybrid solutions enable the revamping of existing power sources with a global energy solution 5 5

6 Potential Sectors Commercial Industrial Telecom Hotel Mine Industry Hybrid solutions enable the revamping of existing power sources with a global energy solution 6 6

7 SunPower Finding the right product

8 Why efficiency matters? Maximise system size High efficiency panel Conventional efficiency panel 1 2 High efficiency More power per sqm High efficiency Lower installation, rent & maintenance cost per watt 3 High efficiency Better LCOE! 8

9 More energy for more revenues in same roof space Yearly production simulation Delhi, India, 1,500 m 2 roof surface 556 MWh Up to 160% more output 402 MWh 349 MWh SunPower 20.1% 298 kwp 910 SPR-327 Panels 30 Fixed Tilt Racking System Mono-Si 16 % 239 kwp 920 mono-si 260 Wp Panels 30 Fixed Tilt Racking System Multi-Si 14.4 % 213 kwp 760 multi-si 280 Wp Panels 30 Fixed Tilt Racking System 9

10 More energy for more revenues in same roof space Yearly production simulation Mumbai, India, 3,000 m 2 roof surface 909 MWh Up to 336% more output 663 MWh 270 MWh SunPower 20.1% 600 kwp 1836 SPR-327 laminates Tilt 0 Conventional 16 % 478 kwp 1840 Conventional 260 Wp Panels Tilt 0 Membrane 6.8 % 200 kwp 1386 Flexible Thin Film 144 Wp Tilt 0 10

More energy for more revenues in same roof space Yearly production simulation Mumbai, India, 3,000 m 2 roof surface 909 MWh Up to 221% more output 663 MWh 411 MWh

11 More energy for more revenues in same roof space Yearly production simulation Mumbai, India, 3,000 m 2 roof surface 909 MWh Up to 221% more output 663 MWh 411 MWh SunPower 20.1% 600 kwp 1836 SPR-327 laminates Tilt 0 Conventional 16 % 478 kwp 1840 Conventional 260 Wp Panels Tilt 0 Thin film 10 % 281 kwp 3122 Thin Film 90 Wp Tilt 0 11

12 Costs/Watt Why efficiency matters? Higher efficiency = lower CAPEX + lower OPEX Better LCOE Fixed Costs Installation BOS Panel Fixed Costs Installation BOS Panel SunPower Rooftop 327W Conventional 14

13 Hybrid systems Case study

14 Existing architecture Backup switch Energy flow Building AC Distribution box Building loads AC Diesel Generator back up No energy transferred to the grid 18

Case study assumptions Building Type of building : Commercial building food retailer Max Connected Load : 100 KW (lighting/ fan/ air conditioners ) Main power Supply : Grid supply

300 Economic data Grid tariff : 6 Rs/kWh Diesel tariff : 50 Rs/litre Fuel Inflation : 7% per year Grid Inflation : 5% per year Man-hour inflation : 10% per year Actualisation rate : 10%

15 Case study assumptions Building Type of building : Commercial building food retailer Max Connected Load : 100 KW (lighting/ fan/ air conditioners ) Main power Supply : Grid supply Back-up Supply : Diesel Engine (no UPS / no batteries) Diesel generator type : Kohler / SDMO J130K Roof Area : 1000 sqm Location : Delhi Economic data Grid tariff : 6 Rs/kWh Diesel tariff : 50 Rs/litre Fuel Inflation : 7% per year Grid Inflation : 5% per year Man-hour inflation : 10% per year Actualisation rate : 10% per year Fuel Consumption [L/kVA/h] Electrical data Grid availability : 16 hours/ day Backup generation : 5 hours/day PV generator size : 91 KWp % 20.0% 40.0% 60.0% Genset Power (P/Pnom) 80.0% 100.0% 19

16 Proposed architecture Backup switch Energy flow Building AC Distribution box Building loads Power control monitoring Grid Inverter DC AC 91 kwp Pure auto-consumption generator No energy transferred to the grid or the generator set 20

17 Load Vs Production profiles 1 PV production during main power cutoff (generator set is running) 2 - PV production during normal operation (generator set is off) 21

18 Millions $ Case study outputs Payback without actualisation Payback with actualisation Cumulated Saving NPV ($) w/o PV Cumulated cost ($) Cumulated cost w PV ($) 22

19 Thank you! Questions?

LAYOUT REPORT OF ROOFTOP PROJECT. For 115 kwp. Order No. # Date 13 October, Name of Place California.

LAYOUT REPORT OF ROOFTOP PROJECT For 115 kwp Name of Place California Client abc Date 13 October, 2014 Email ezysolare@gmail.com Order No. #1410130001 Address xyz Mumbai, Maharashtra, India 000000 INDEX