World Energy Solutions, Inc. (NASDAQ: XWES - News; TSX: XWE - News), an operator of online exchanges for energy and green commodities, today announced it has successfully supported the sixth carbon allowances auction administered by Regional Greenhouse Gas Initiative, Inc. (RGGI, Inc.) on December 2, 2009.

According to RGGI, Inc., all 28,591,698 allowances for the 2009 vintage sold at $2.05 per allowance, while 1,599,000 allowances for the 2012 vintage sold at $1.86 per allowance. In total, the sixth RGGI auction yielded more than $61.5 million, increasing the total amount of RGGI auction proceeds to more than $494.4 million.

In a previously released statement, David Littell, Commissioner of the Maine Department of Environmental Protection and Chair of the Regional Greenhouse Gas Initiative, Inc. Board of Directors, said: “RGGI auctions continue to run like clockwork. Six successful auctions, more than 100 bidders and $494 million for green energy and green jobs - RGGI is showing that cap-and-trade works.”

(http://www.rggi.org/docs/Auction_6_Results_Release_MMrep.pdf)

Added Richard Domaleski, CEO of World Energy: “As world leaders meet in Copenhagen to discuss a future framework for reducing greenhouse gas emissions, we take great pride in the role we play in the execution of the RGGI auctions. RGGI provides an object lesson in how to structure and run carbon compliance auctions.”