Quote:
Originally Posted by RickeyM
Today's solar cells do a lot more than baking mud bricks in the sun.
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Less efficiently.
The best PV cells are only 27.7% efficient. Then there's downstream loses in DC/AC conversion, line losses, and finally at the end device doing work (e.g. a motor
which may have 8-20% loss.
The sun is gonna sun. Efficiency doesn't really matter when it's freely given and the only cost is labor.
Quote:
Originally Posted by RickeyM
A modern wind farm does a lot more than grinding grain which windmills were for. Despite that Tweety says there are no cases of "windmill cancer" or "piles of dead eagles".
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Former: see above; inefficient.
Latter:
https://www.fws.gov/birds/bird-enthu...d-turbines.php
Quote:
Originally Posted by RickeyM
Hydroelectric, a form of "green" energy already in place and in wide use for years.
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Everything that's reasonable to be dammed has been dammed. It can't reasonably expand to take more share than it has.