Massachusetts’ highest court on Dec. 28 upheld an agreement allowing Cape Wind to sell power to National Grid, removing a major obstacle for the planned 130-turbine offshore wind farm on Nantucket Sound.The ruling affirms the 2010 decision by the Massachusetts Dept. of Public Utilities (DPU) to allow National Grid to buy 50% of Cape Wind’s output — 234 MW. The Alliance to Protect Nantucket Sound, Associated Industries of Massachusetts, the New England Power Generators Association and TransCanada had appealed the DPU’s decision late last year.In the 35-page ruling, Supreme Judicial Court Justice Margot Botsford called the DPU review consistent with
Arch dams, classically curved monoliths situated in narrow valleys, are not as common as other types of dams, such as embankment dams and gravity dams. ENR takes a look at some of the biggest arch dams in the world, both completed and under construction.