Money is flowing worldwide for many forms of renewable energy, as the industry presses forward with dramatic growth. CleanEdge reported US$188.1 billion in global revenue for biofuels, solar and wind energy in 2010, a 35.2% surge over 2009. Bloomberg New Energy Finance (BNEF) found that clean energy investment worldwide reached $243 billion in 2010, nearly double the sector investment just four years earlier. And venture capital investment for clean technology in the US rose 54% in the first quarter of 2011 compared with the same period one year earlier, in a trend led by solar energy companies, according to Ernst & Young.