Single-family homeowners in Santa Clara County are invited to a free workshop about energy efficiency rebates on April 30 from 6 p.m. to 8 p.m. at Cupertino Community Hall, 10350 Torre Avenue.

Single-family homeowners in Santa Clara County are invited to a free workshop about energy efficiency rebates on April 30 from 6 p.m. to 8 p.m. at Cupertino Community Hall, 10350 Torre Avenue.