SAN LUIS OBISPO, SANTA BARBARA, VENTURA — Heat pump water heaters are three to five times more energy efficient than their natural gas water heater counterparts, and 3C-REN (Tri-County Regional Energy Network) is helping to make these replacements more affordable—and sometimes free—for Central Coast residents. Through steep incentives and upcoming events in English and Spanish, 3C-REN aims to educate and empower residents this April.