The media have published story after story after story about the declining price of solar panels and wind turbines. People who read these stories are understandingly left with the impression that the more solar and wind energy we produce, the lower electricity prices will become. And yet that's not what's happening. In fact, it's the opposite reports Michael Shellenberger.
Solar and wind present two problems. One is low power density; massive areas have to be devoted to power generation. The other, more serious problem is intermittency. If we only wanted to run electrical appliances when the wind is blowing or the sun is shining, fine, but don't expect to use solar to turn on your lights at night. So solar and wind cannot manage on their own; it's always solar on wind and something else. Generating more electricity from solar and wind is just a very expensive exercise in political correctness that will have little impact on carbon dioxide emissions, but a big impact on your wallet says Jonathan DuHamel. 2