In addition to paying most or all installation costs for solar systems up to 6.5 kilowatts at $4 per watt, the solar equity program also pays up to $3,500 to upgrade existing electrical panels so ...

Sempra Energy headquarters in downtown San Diego. REUTERS/Mike Blake. San Diego-based energy company Sempra has been named one of Newsweek’s “America’s Most Responsible Companies” for 2025.