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Sliver solar cells

Global Photovoltaic Production. Projected global PV system sales. Global electricity production . PV Progress

jerry
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Sliver solar cells

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    1. Sliver solar cells

    2. Global Photovoltaic Production

    3. Projected global PV system sales

    4. Global electricity production

    5. PV Progress – 18% price reduction per doubling of cumulative sales

    6. Photovoltaics = silicon 95% of the world market The advantages of crystal silicon Silicon abundance Silicon non-toxicity High and stable efficiency Shared infrastructure with the IC industry Market dominance Pure silicon supply problem

    15. Sliver Solar Cell Cross-Section

    16. Energy payback time

    17. Silicon consumption

    18. Watts per wafer

    19. PV Module cost (US$)

    20. Applications of Sliver technology

    21. The importance of high efficiency Unavoidable area related costs: $200/m2 Module construction: glass, EVA, connectors etc Module mounting: frames, land, installation etc For a 10% module: $2 per W For a 20% module: $1 per W

    22. Long term prospects for Slivers In the long term the energy conversion layer is nearly free. Encapsulation and BOS dominate Efficiency is the main determinant CSG, a-Si, DSC, organics: <10% efficient CdTe, CIGS: scarce or toxic materials Sliver at 20% has a decisive long term advantage Concentrators: a competitor in some markets

    23. Sliver energy cost

    24. Summary No further breakthroughs required Breakthroughs might or might not happen to budget or timeline But good silicon engineering needed Slivers match “zero-emission” coal, wind Implications for climate change policy

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