Out-and-back Half-Century ride, may be the last summitting of Wachusett for 2009, this makes the fifth time this year. Rare for hills of central Mass., -esp. this time of year- a day w/ nearly calm winds. Mostly cloudy w/ fog bank clouds most of day, blowing in from CT River valley and Long Island sound on light SW to SE flow (yesterday fog clouds burned off by 11:30, but not today (winds today light from SW to SE, yesterday W to NW to calm)). Air temp 54 F. Lunch stop at newly opened (last summer) coffee/sandwich/bakery shop around the corner from Princeton Ctr on Rt 62 N: Turkey rice soup, slice of pumpkin bread, banana, cranberry/white-chocolate cookies (3-pack)--total fluids consumed during ride: 40 oz. water; 8 oz. soup. Pack of 4 cyclists coming down summit rd encountered while climbing up, met one cyclist at summit, and passed one mtn-biker at start of trip home on Mountain Rd just below visitor ctr. Saw several motorcyclists on the roads during the course of the day getting that possible last ride of the season in. Felt good to be back on bike, legs were just bursting w/ energy, after extended layoff from bike due to having to work solo w/ heavy incoming for 9 straight days at job!! Saw something new since last ride up the mountain: Two Fuhrländer 1.5 megawatt wind turbines have been installed by Princeton Municipal Light Department to supply 40% of the town's power requirements (town population: ~3500 residents) !! The 2 turbines replace the eight 40-kW machines which had been in operation on the southwest side of Mount Wachusett since 1984.