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SRT wrote:


These people touting alternative energy obviously haven't checked other countries that have tried this path. What do you when the wind doesn't blow, or is cloudy for many days? So far it has been an expensive boondoggle for the taxpayers.

You use the excess alternative energy for pumped hydropower storage. 22 pumped storage units with more than 2,400 MW of capacity were installed in Europe from 2000 to 2010 to help with the variability of wind and solar generation. In contrast in the US 2 units with 40 MW capacity were started in 2011 but few other projects.

Here is an example of a US pumped storage station in operation since 1985 in Virginia:

https://www.dom.com/about/stations/hydro/bath-county-pumped-storage-station.jsp

Here is a list of pumped storage hydropower stations greater than 1000MW around the world:

http://en.wikipedia.org/wiki/List_of_pumped-storage_hydroelectric_power_stations