On Tuesday, Dec. 17, at 7 p.m. at the Vermillion City Library, 18 Church St., Dennis Williams will give a presentation on renewable energy options and energy efficiency.
Williams specializes in the installation of solar electric, solar thermal, and wind systems that are tied to the grid or backed up with batteries.
His presentation will provide information for homeowners, businesses, and farmers.
A question and answer time will follow his presentation.
Williams owns and operates Williams Power Systems in rural southeastern South Dakota. It is a family-operated, veteran-owned company that specializes in renewable energy projects. Williams has been interested in renewable energy since he was a child, and he has lived with renewables since 1999. He has been developing and installing systems for 14 years.
His presentation is sponsored by the Living River Group of the South Dakota Sierra Club.