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#11
June 28th 17, 01:37 PM
posted to rec.aviation.soaring
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New House Thermal
Le mercredi 28 juin 2017 14:26:00 UTC+2, a écritÂ*:
On Wednesday, June 28, 2017 at 7:49:39 AM UTC-4, Tango Whisky wrote: Le mercredi 28 juin 2017 13:36:44 UTC+2, a écritÂ*: No. Let us know when they can build solar panels in a factory powered only by solar panels. Including refining the metal bits. Same for windmills. Chasing this stuff is a net negative for energy produced and the environment(and the economy.) Is it ironic that we land in cornfields but don't like ethanol in our gas? Today's solar panels have an energy payback time of less than 2 years. If you haven't noticed - the 80s and 90s are gone... Bert TW Payback including gov't subsidies. The 80's and 90's are gone... Energy payback means that they have generated more energy than the energy used for their production. It doesn't say anything about payback in terms of cost. Again, I'm not promoting anything. Any kind of energy has its own drawbacks, and there is no such thing as a free lunch. 
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