Star Phoenix Base is reporting on an article in the Economist about a company called TMA that is about to put a vertical axis wind turbine into production. The company claims that this newer design harnesses about 43-45% of the wind’s energy, compared to 25-40% for conventional propeller style turbines. There’s an added benefit if the claim of less danger to migrating birds is true. The article in StarPhoenix Base is here. You can access TMA’s website here. You’ll need a subscription to the Economist to read the original article.