Solar Silicon Production

• About half of the embodied energy of PV panels goes into the production of solar cells themselves. Rest is frame etc. [1]
• If solar panel energy payback is now 1 year - then we need about 2kW per watt of PV.
• This means we can produce 100kW of PV from 100kW of PV every year.
• 100kW is about 300 PV panels. About 1 panel per day.