The often cited study by Mark Jacobson et. al. that asserts it's economic to replace every fossil fuel use with either electricity from wind, water, and sun (WWS-only) or hydrogen produced using WWS-only in 139 countries over the next 33 years implies a massive construction program the likes of which we may not have ever seen. I find it useful to compare the implied construction program to what we have experienced in the recent past. Click here to see his paper on the 50 U.S. states. Over the next 33 years, even under his extraordinary drop in total electric load, he envisions approximately 5.8 million MW of new generation are needed (plus an additional 600GW for peaking and system stability). He reports that as of 2013, 2.71% (of 5.8 million MW) is currently installed, or approximately1.6 million MW. Such quantities indicate an extraordinary construction program, especially since the U.S. installed capacity rose by only about 177,400MWs over the eight year pe...
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