Many of the new technologies that harness renewables are, or soon will be, economically competitive with fossil fuels. Dynamic growth rates are driving down costs and spurring rapid advances in technologies. Since 2000, global wind energy generation has more than tripled; solar cell production has risen six-fold; production of fuel ethanol from crops have more than doubled; and biodiesel production has expanded nearly four-fold. Annual global investment in "new" renewable energy has risen almost six-fold since 1995, with cumulative investment over this period nearly $180 billion.
The full pdf of the report is freely downloadable here.