The East Irondequoit (N.Y.) Central School District has installed a combined heat and power (CHP) system to generate energy more efficiently at Eastridge High School. The New York State Energy Research and Development Authority, which contributed $666,000 toward the $1.6 million cost of the 325-kilowatt system will provide power for up to half of the school building, depending on the season, as well as heating or cooling. The CHP system will also operate as a stand-alone generator during a grid outage, turning the school into a Red Cross Facility of Refuge.