California Energy Calculators
Estimate your annual energy and dollar savings from home efficiency upgrades. Based on California eTRM.
Gas Storage Water Heater
Calculate annual energy savings from upgrading to a high-efficiency gas storage water heater in California using deemed savings from the California eTRM.
Tankless Water Heater
Calculate annual energy savings from replacing a gas storage water heater with a tankless (instant) gas water heater in California using deemed savings from the California eTRM.
Heat Pump Water Heater
Calculate annual electricity savings from installing a heat pump water heater to replace an electric storage water heater in California using deemed savings from the California eTRM.
Heat Pump Water Heater (Gas to Electric)
Calculate annual energy savings from replacing a gas storage water heater with a heat pump water heater in California. This gas-to-electric measure eliminates natural gas while increasing electricity use, with net dollar savings.
Smart Thermostat
Calculate annual energy savings from installing a smart thermostat in California using deemed savings from the California eTRM.
Ducted AC & Heat Pump
Calculate annual electricity savings from upgrading to a high-efficiency ducted air conditioner or heat pump in California using deemed savings from the California eTRM.
Ductless Heat Pump (Mini-Split)
Calculate annual electricity savings from installing a high-efficiency ductless heat pump (mini-split) in California using deemed savings from the California eTRM.
Ductless Heat Pump (Gas to Electric)
Calculate annual energy savings from replacing a gas wall furnace (with or without window AC) with a ductless mini-split heat pump in California. This gas-to-electric measure eliminates natural gas while potentially saving or increasing electricity depending on your climate zone.
Ducted Heat Pump (Gas to Electric)
Calculate annual energy savings from replacing a central AC with gas furnace (or gas furnace only) with a ducted heat pump in California. This gas-to-electric measure eliminates natural gas while potentially saving or increasing electricity depending on your climate zone.
Ceiling Insulation
Calculate annual energy savings from adding ceiling insulation (attic batts) to your California home using deemed savings from the California eTRM.
Wall Insulation
Calculate annual energy savings from adding blow-in wall insulation to your California home using deemed savings from the California eTRM.
Door Sweeps & Sealing
Calculate annual energy savings from installing door weatherstripping or door sweeps on exterior doors in your California home using deemed savings from the California eTRM.