In recent months, two members of the Massachusetts congressional delegation signaled their support for Cape Wind, an exciting but politically controversial project that could become the region’s first source of offshore wind power.

“Barney Frank and John Olver deserve many thanks for their support of Cape Wind,” said Environment Massachusetts Energy Associate Diana Connett. “We’re urging the rest of our state’s congressional delegation to choose a cleaner energy future by choosing Cape Wind. It’s a far sight better than the alternatives.”

Cape Wind would provide 75 percent of the power used on the Cape and the Islands via a clean, renewable, homegrown energy source—but only if it is approved and built.

The project has undergone a rigorous review over the last five years. While Environment Massachusetts supports a thorough scientific review process, backdoor political maneuvers are another matter.

Seventeen national, state and local agencies have reviewed the project since it was first proposed in 2001. None found any significant problems with the proposal.

This past June, however, a budget rider, quietly attached to a Coast Guard funding bill, would have derailed Cape Wind by handing veto power to Gov. Mitt Romney, a Cape Wind opponent. Fortunately, under pressure from Sen. Pete Domenici and other legislators, a House-Senate conference committee dropped the rider, giving Cape Wind proponents a chance to fight another day.