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When I reflect on these past subsidies -- without exception -- every single one mentioned above is still heavily subsidized by both federal and state governments. These subsidies do not only include direct R&D dollars, but also include incentives such as the solar investment tax credit, wind production tax credit, and oil/gas drilling depletion allowance.
Matt Chester, kids learn that the round peg cannot go into a square hole. I have been doing wind and solar since 2006, with a little combined cycle. I also have a lot of grid work experience, specifically grid support for power factor correction (Google STATCOM, SVC, synchronized condenser). To me it is trivia.
Since wind and solar empirical production figures in GWH (energy) are dismal at around 25% of the hours over a year's time (about 2,200 hrs out of 8,760 hrs), it does not matter the politician good will, and the taxpayer’s funds, we cannot have 100% renewables. What would be your opinions then on more modest renewable goals? 50%? 25%? Or would you prefer not pursuing more...
Researchers have found that multi-rotor wind turbines have less turbulence and therefore more energy output than a single rotor turbine of the same swept area, and is cheaper to build and transport. Also, if one rotor malfunctions, the others can keep producing. https://www.google.com/amp/s/phys.org/news/2019-10-advantages-turbines.amp
Sounds like a promising tech advance-- though as with all exciting news coming in energy breakthroughs, I'll hold the applause (but remain optimistic) until the progress is verified by outside studies and put into commercial operation (otherwise I'd be holding mini-parties for every battery tech and tidal energy installation every single day!)