The IEA published its Wind Roadmap which captures the tasks that must be addressed along the wind energy supply chain, from efficient energy extraction on land and offshore to reliable and cost-effective delivery to consumers. The Roadmap targets 9% of global electricity from wind power by 2030 and 12% by 2050, in lines with the BLUE Map scenario presented in Energy Technology Perspectives 2008. Installed capacity would reach more than 2,000 GW in 2050 at world level. Power generation from wind energy would thus amount to 2,700 TWh in 2030 and 5,200 TWh in 2050. To achieve this goal, required investments would amount to $3,200bn over the period 2010 - 2050. About 47 GW would need to be installed on average each year, which corresponds to an annual investment of $81bn, compared to $51.8bn in 2008.
EnerFuture Forecasts show similar wind energy development than IEA projections. In 2050, total installed capacities reach between 1,800 GW (Recovery scenario) and 2,700 GW (Renewal scenario). By that time horizon, wind power generation ranges from 4,100 and 6,100 TWh. However, wind energy development could be largely affected by a slow economic upturn after the global crisis, as shown in the scenario Depression. In this case, installed capacity in 2050 could be only 1,300 GW for 3,000 TWh produced.