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Almost.. the IEA puts it at 2-59 grams per kwh. Hydro at 2-49g; wind at 7-124g; and solar at 13-731g. In comparison to nat gas at 389-511g.

Hydro and nuclear are pretty much tied. And wind is a close 3rd.

see page 134: also has SO2, NOX, and a few other stats: http://www.oecd-nea.org/ndd/reports/2002/nea3676-externaliti...




Solar's at 13-731g is due to mixing a wide range of technology and calling it 'solar'. Solar thermal power plants are simply terrible designs that never really improved over time, and often include natural gas for nighttime operation.

So, in terms of installed capacity it's much closer to 13 and generally below nuclear.




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