Worldwide clean energy investment fell by 11 percent in 2012, dramatic and continued price declines for leading technologies helped fuel a record 88 GW of capacity additions around the world. By the end of the year, 648 GW of clean energy generating capacity was in place globally. With 48.6 GW of new generating capacity installed in 2012, the wind sector led all others with 280 GW deployed worldwide.
Source: Clen G20 report-2012
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