Rockland town officials expect the Beech Street Landfill Solar Project to be completed ahead of schedule and generate more power than previously expected, according to Town Administrator Allan Chiocca. “You’re never sure with construction if the weather and the schedule is going to let you hit your target,” Chiocca said in a phone interview. “We expect to be done before the end of December.” The power generated by the project will be purchased by the town at a discounted rate, saving the town several hundred thousand dollars in utility costs. According to Chiocca, the solar panels set up on a former landfill will have a 3.2-megawatt capacity, providing up to three-fourths of the power supply for the town’s municipal buildings. The original estimate was a capacity of 2.1 megawatts. Full story for BostonGlobe.com subscribers.