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The fundamental problem with solar or wind power is that they are not viable for reliable, 24/7 base loads. In every case where the cost/kwH is quoted, it's based on the max output of that system, under ideal conditions. Problem is, people like to turn lights on when it gets dark. Silly customers, right? Similar with wind-customers want power when the wind speed is either too low or high to operate wind turbines. Both of those technologies require redundant backups to provide a reliable base load. And those backups are expensive-a cost which is never quoted when claiming how "cost effective" green power is. At this point the only remotely practical storage medium is hydro-with pumped storage of water to a higher elevation when supply exceeds demand. All of which wastes water and is very costly...also a cost not figured when quoting prices.
Until a method of storing large amounts of energy becomes both practical and cost effective, "renewables" are a novelty, at best capable of supplementing conventional production.
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