renewable power (excluding large hydro) accounted for 44% of new generation
capacity added worldwide in 2011, up from 34% in 2010 [and 10% in 2004]. The $237 billion invested in building these green power plants compares with $223 billion of net new expenditure annually on building additional fossil-fuelled power plants globally last year.
Current predictions are that total installed capacity in non-hydro renewable power will rise ninefold to 2.5Tw by 2030, with investment in assets rising from $225 billion in 2011 to $395 billion-a-year by 2020 and $460 billion-a-year by 2030
Total investment in solar in 2011 increased 52% to $147 billion, driven by a drop of 50% in photovoltaic module prices. Investment in wind dropped 12% to $84 billion, while onshore wind turbine prices fell between 5 and 10%. Biomass and waste to energy was the 3rd largest renewable sector at $11 billion in investments (down 12% from 2010).
USA investment surged 51% to $51 billion just behind China at $52 billion (China increased investment in renewable energy by 17% from 2010). German investment dropped 12% to $31 billion.
In 2011 renewable energy power capacity (excluding large hydropower), as a percentage of total system capacity, reached 9%, up from 4% in 2004. Total renewable energy generation (excluding large hydro) reached 6%, up from 4% in 2004.