Monday, September 26, 2016

Energy growth must stop, will stop--all forms of energy.

There are several problems with renewable energy sources, we address only the show-stoppers.

There is no sign that renewables have or will reduce fossil use.

Renewables make heavy use of fossil-fuels to produce, install, and operate.
What is it made of? Lots of steel, concrete and advanced plastic. Material requirements of a modern wind turbine have been reviewed by the United States Geological Survey. On average 1 MW of wind capacity requires 103 tonnes of stainless steel, 402 tonnes of concrete, 6.8 tonnes of fiberglass, 3 tonnes of copper and 20 tonnes of cast iron. The elegant blades are made of fiberglass, the skyscraper sized tower of steel, and the base of concrete.
Renewables lead people away from degrowth, wasting valuable time.
First, I refer you to the previous post: the continued growth of any energy technology—if consumed on the planet—will bring us to a boil. Beyond that, we hit astrophysically nonsensical limits within centuries. So energy scale must cease growth. Likewise, efficiency limits will prevent us from increasing our effective energy available without bound.

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