> Green tech requires massive amounts of dirty energy to produce. The energy payback time for photovoltaics is 1.2 years in north and less than 1 year in the s

> Green tech requires massive amounts of dirty energy to produce. The energy payback time for photovoltaics is 1.2 years in north and less than 1 year in the south with such systems typically lasting longer than 20 years. https://www.ise.fraunhofer.de/content/dam/ise/de/documents/publications/studies/Photovoltaics-Report.pdf https://www.ise.fraunhofer.de/content/dam/ise/de/documents/p... That is in line with energy return on investment of fossil fuels.