A guide to solar cells using Elkem Solar Silicon (ESSâ¢)
A guide to solar cells using Elkem Solar Silicon (ESSâ¢)
A guide to solar cells using Elkem Solar Silicon (ESSâ¢)
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Energy payback time (EPBT) – Comparison - LCA<br />
1.8<br />
Energy payback time (years)<br />
1.6<br />
1.4<br />
1.2<br />
1.0<br />
0.8<br />
0.6<br />
0.4<br />
0.2<br />
0.0<br />
Siemens<br />
<strong>Elkem</strong> <strong>Solar</strong><br />
Siemens 2006 ESS 2010<br />
inverter<br />
mounting + cabling<br />
frame<br />
laminate<br />
cell<br />
ingot/crystal + wafer<br />
Si feeds<strong>to</strong>ck<br />
13.2% multicrystalline Si modules<br />
Schletter on-roof mounting<br />
2500 W inverter from ecoinvent 2.0<br />
performance ratio 0.75<br />
irradiation 1700 kWh/m2/year<br />
6<br />
Developing people - creating value<br />
22.06.2011
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