The University of Florida’s Institute of Food and Agricultural Sciences Sarasota County extension office is offering a free workshop on residential solar power from 5 to 6 p.m. on Tuesday, Dec. 12, at Gulf Gate Library, 7112 Curtiss Ave., Sarasota. The discussion will cover the basics of how the technology works, considerations for calculating return on investment, policies affecting solar adoption in Florida and incentives that might be available to help pay for it. Register online.