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A comment on Global Warming: For the record. Parent comment
http://ga.water.usgs.gov/edu/wuhy.html
Furthermore, hydropower may be throttled up and down, such that the combination of hydro + wind and solar can hit penetrations near 50% before more energy storage is needed.
Also, wind power is less expensive on a kwhr delivered basis than coal. http://www.stanford.edu/group/efmh/jacobson/Ia.html
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http://ga.water.usgs.gov/edu/wuhy.html
Furthermore, hydropower may be throttled up and down, such that the combination of hydro + wind and solar can hit penetrations near 50% before more energy storage is needed.
Also, wind power is less expensive on a kwhr delivered basis than coal. http://www.stanford.edu/group/efmh/jacobson/Ia.html