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You're ignoring the energy and materials costs for building solar panels. Land is not the problem so the difference between 8% and 18% is negligible.
by driverdan 8y ago
You're ignoring the energy and materials costs for building solar panels. Land is not the problem so the difference between 8% and 18% is negligible.
- thinkcontext 8y agoThis is a good point, I debated whether to express things as EROI instead of efficiency. Brazilian ethanol is estimated to be about 8:1, corn ethanol is less than 2:1. According to a Wikipedia a 2015 metastudy for solar PV found between 8:1 and 40:1. https://en.wikipedia.org/wiki/Energy_returned_on_energy_invested https://en.wikipedia.org/wiki/Energy_returned_on_energy_inve...