Solar photovoltaic devices
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1 ME 217: Energy, Environment & Society Fall 2015 Solar photovoltaic devices ME217 Energy, Environment & Society
2 The first modern PV device 1954: first solar panel, manufactured by Bell Labs ME217 Energy, Environment & Society Solar photovoltaics 2/31
3 Milliwatts to tens of Megawatts Sharp EL 826 ~ 10mW Ota City, Japan 500 houses, 2.2MW Les Mees PV park (France) 18.2 MW Boris Horvat/AFP/Getty Images ME217 Energy, Environment & Society Solar photovoltaics 3/31
4 How electrons are arranged ME217 Energy, Environment & Society Solar photovoltaics 4/31
5 How to get electrons moving Insulator Empty conduction band Conductor Partly filled conduction band Filled valence band Partly filled valence band Semiconductor Conduction band Partly filled valence band ME217 Energy, Environment & Society Solar photovoltaics 5/31
6 Structure of Silicon crystal ME217 Energy, Environment & Society Solar photovoltaics 6/31
7 What happens if I put in an impurity? ME217 Energy, Environment & Society Solar photovoltaics 7/31
8 Now let's glue the n and p together ME217 Energy, Environment & Society Solar photovoltaics 8/31
9 Complete the circuit ME217 Energy, Environment & Society Solar photovoltaics 9/31
10 Candidate materials ME217 Energy, Environment & Society Solar photovoltaics 10/31
11 How much energy in a photon? ME217 Energy, Environment & Society Solar photovoltaics 11/31
12 The solar spectrum ME217 Energy, Environment & Society Solar photovoltaics 12/31
13 Efficiency limitations ME217 Energy, Environment & Society Solar photovoltaics 13/31
14 The structure of a PV cell ME217 Energy, Environment & Society Solar photovoltaics 14/31
15 Typical PV cells ME217 Energy, Environment & Society Solar photovoltaics 15/31
16 Performance of a PV cell ME217 Energy, Environment & Society Solar photovoltaics 16/31
17 The IV curve ME217 Energy, Environment & Society Solar photovoltaics 17/31
18 The voltage-current relationship ME217 Energy, Environment & Society Solar photovoltaics 18/31
19 The production process ME217 Energy, Environment & Society Solar photovoltaics 19/31
20 Single crystal ingot production ME217 Energy, Environment & Society Solar photovoltaics 20/31
21 A silicon ingot ME217 Energy, Environment & Society Solar photovoltaics 21/31
22 Poly-Si ingot and cell ME217 Energy, Environment & Society Solar photovoltaics 22/31
23 The slicing process ME217 Energy, Environment & Society Solar photovoltaics 23/31
24 Typical connections Note: not all components need to be present (e.g. battery). ME217 Energy, Environment & Society Solar photovoltaics 24/31
25 A flat solar module Schott Poly cells in series 240 W nominal power 30.4 V 7.9 A Dimensions: 1.685m x 0.993m ME217 Energy, Environment & Society Solar photovoltaics 25/31
26 Utility-scale CPV ME217 Energy, Environment & Society Solar photovoltaics 26/31
27 Is PV sustainable? ME217 Energy, Environment & Society Solar photovoltaics 27/31
28 Falling costs... ME217 Energy, Environment & Society Solar photovoltaics 28/31
29 Growth in a decade ME217 Energy, Environment & Society Solar photovoltaics 29/31
30 Trends ME217 Energy, Environment & Society Solar photovoltaics 30/31
31 Where is it? (and why) Total deployment in Q4 2014: 200 GW ME217 Energy, Environment & Society Solar photovoltaics 31/31
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