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=Total for 1kW of PV= | =Total for 1kW of PV= | ||
*600 kWhr for 2 kg of silicon | *600 kWhr for 2 kg of silicon | ||
*3kWhr per | *3kWhr per kg for glass, or 90 kWhr for 30 kg glass. [https://www.sciencedirect.com/science/article/abs/pii/S1755008422000515] | ||
*About 40 kWhr per my of EVA/aluminum x 8 kg = 320 kwhr | *About 40 kWhr per my of EVA/aluminum x 8 kg = 320 kwhr | ||
*'''Total 1010 kWhr''' | *'''Total 1010 kWhr''' | ||
Revision as of 03:57, 3 December 2024
PV Panel Embodied Energy
- embodied energy of 1000 MJ/kg or 300 kWhr! [1]
- Compare to steel at 20 MJ/kg [2], and 200MJ/kg more than this for aluminum [3]
- How many grams of silicon are needed for 1kW of PV panels? 2 kg [4], based on 2g/W.
- 5% of weight of PV is silicon [5]. 76% is glass, 10% is aluminum, and 10% is EVA.
- Embodied energy of EVA is about 80 mega joules per kilogram [6]
Total for 1kW of PV
- 600 kWhr for 2 kg of silicon
- 3kWhr per kg for glass, or 90 kWhr for 30 kg glass. [7]
- About 40 kWhr per my of EVA/aluminum x 8 kg = 320 kwhr
- Total 1010 kWhr
Links
- DIY Glacial Acetic Acid
- Wikipedia says 585 kWhr/m2 of PV panels? [8]