With the “greening” of Dennett Elementary School, the town will save about $10,000 annually in energy costs, according to Town Coordinator Dale Pleau. Plympton received a $141,500 state grant to make energy-efficient upgrades to town-owned buildings. The library, Town Hall, and Department of Public Works barn will see improvements, but most of the money will be used to replace interior and exterior lighting at the elementary school. “Plympton is an energy-conscious town, and it’s nice to be recognized for our efforts and to receive this funding to make additional improvements,” Pleau said. Pleau and selectmen chairman John Henry attended a recent ceremony in Acushnet, another green-designated community, where state officials presented the awards. In addition to the grant, Plympton received a certificate from the state and road signs identifying the town as a green community.