The greenest building in Connecticut isn’t what you’d expect. It’s not some high tech, high-rise office using experimental materials or a super-insulated home fitted into a south facing hillside with solar panels perched on the roof. It’s the Woodchip Central Heating Facility at the Hotchkiss School in Lakeville, according to the Connecticut Green Building Council which gave it the 2013 Alexion Award of Excellence. Long before Kermit the Frog learned that being green isn’t easy, power plants often struggled with environmental compliance and a public image associated with smoke, soot, noise and water pollution. Providing heat to over a million square feet of space in tens of buildings by burning sustainably harvested woodchips to produce steam and hot water, the Hotchkiss facility leaves typical power plant stereotypes in shambles.