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Originally Posted by Brutha  They might be wind turbines and big dams are proven tech but they don't produce enough energy to go off fossil fuels as fast as we should. |
Just wanted to pop in here and mention a 248 page study the US Department of Energy released. It's titled 20% Wind Energy by 2030. The study points out that there is 8000 GW of economic wind available in the US, but that only 300 GW is required to produce 20% of electricity requirements. Wind is a very feasible alternative. I believe I read that the current increase in wind power generation is approximately 5 GW/year. To reach 20% by 2030, the industry would need to increase production to at least 15 GW/year.
So really it's less a question of the technology and more an issue of motivating people to increase production.