Educational presentation by experts from GotSun-GoSolar.com, a division of RAB Construction in Seekonk, will explain how Massachusetts home and business owners profit by installing solar panels while getting free electricity from the sun and reducing their carbon footprint. Topics to be covered include a comparison of renewable energy technologies, the components of a solar array, installation considerations, and how current incentives pay for the system. The venue is Vento Industries, 309 Taunton Avenue, just east of Johnson & Wales Inn on route 44. Seating is limited, so registration is advised by calling 508-399-0120.