Tri-County Regional Energy Network (3C-REN) - Multifamily Residential Energy Efficiency Rebate Program

As a multifamily property owner in San Luis Obispo, Santa Barbara, or Ventura counties, you can access rebates starting at $1,000 per unit for energy efficiency upgrades—including heat pumps, water heaters, insulation, windows, and lighting—with potential adders up to $5,000 per unit for certain installations like heat pump water heaters. The program provides a no-cost energy assessment to identify your best savings opportunities, and eligible properties must be existing buildings with 5 or more units receiving service from PG&E, SCE, SoCalGas, or their community choice aggregation partners. To get started, fill out the multifamily interest form and a technical assistant will guide you through available upgrades and help you reserve your rebates.

3C-REN offers customers in five-plus-unit multifamily buildings across three California counties substantial rebate incentives for comprehensive efficiency upgrades, with base rebates starting at $1,000 per unit and adders such as $1,500 per heat pump installation or $5,000 when installing heat pump water heaters. You'll work with property owners who receive technical assistance throughout the process, and the program encourages bundled projects combining multiple upgrade categories—from HVAC and water heating to building envelope and lighting—to maximize both energy savings and customer incentives. Eligible properties must be existing buildings receiving utility service from PG&E, SCE, or SoCalGas (including community choice aggregation providers).

3C-REN's multifamily program targets existing buildings with 5+ units in San Luis Obispo, Santa Barbara, and Ventura counties served by PG&E, SCE, or SoCalGas, offering tiered incentives (base rebates from $1,000/unit plus adders up to $5,000+/unit) to drive comprehensive upgrades across domestic hot water, HVAC, building envelope, appliances, and lighting. The program is administered through technical assistance staff who conduct no-cost energy assessments and guide property owners through rebate reservation and project scoping. Incentive levels vary by upgrade type and include bonus rebates for measures with health and greenhouse gas co-benefits, with particular emphasis on heat pump conversions (space conditioning and water heating) to support deep decarbonization in the multifamily sector.