Domi Frideger, 18, left, and Dylan Kroes, 18, display their solar car “Solis” on Tuesday during the 4CORE Alternative Fuels Event at the La Plata County Fairgrounds. About 50 people attended, listening to different presentations from industry experts in electric charging stations and compressed natural gas. Several alternative-fuel vehicles were on hand, including a Tesla electric car for demonstrations and test drives.

La Plata Electric Association brought a Chevrolet Volt electric car on Tuesday to the 4CORE Alternative Fuels Event at the La Plata County Fairgrounds.