Residents will have the opportunity to meet the solar-panel installer that will work in Lexington as part of the community’s involvement in Solarize Massachusetts, a statewide program that promotes the use of solar energy, on Feb. 24 from 7 to 9 p.m. in the Cary Memorial Building, at 1605 Massachusetts Ave. Representatives from Astrum Solar Inc., a Hopkinton-based company, as well as local officials will be on hand to discuss the program, which offers a tiered pricing structure that reduces the cost as more residents and businesses take part. Participants have until June 30 to sign up for a solar-panel installation. In December, Lexington was announced as one of 15 communities selected for participation in this year’s program. Solarize Mass is sponsored by the Massachusetts Clean Energy Center and the Green Communities Division of the state’s Department of Energy Resources .