"Venture capital and private investments in clean energy companies saw a huge leap in 2006, increasing by 167 percent from $2.7 billion to $7.1 billion. The increase was driven by investment in biofuels (up fourfold from $647 million in 2005 to $2.8 billion last year), solar (up 210 percent, thanks to initiatives like California’s ‘Million Solar Roofs’), and wind (which more than doubled from $307 million to $821 million)." (GreenBiz.com)
Investment in Clean Energy Surged 167% in 2006