Energy Efficiency Calculators
Estimate your annual energy and dollar savings from home efficiency upgrades.
Heat Pump Upgrade
Calculate annual energy savings from upgrading to a heat pump in California. Whether you're replacing a gas furnace, gas wall heater, or upgrading an existing AC or heat pump, this calculator uses deemed savings from the California eTRM to estimate your savings.
Smart Thermostat
Calculate annual energy savings from installing a smart thermostat in California using deemed savings from the 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.
Heat Pump Water Heater
Calculate annual energy savings from installing a heat pump water heater in California, whether you're replacing an electric, gas storage, or gas tankless water heater. Uses 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.
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.
Cold Climate Heat Pump
Calculate annual energy and cost savings from installing cold climate heat pumps (ccPTHP) meeting NEEP specifications in New York State.
Smart Thermostat
Calculate annual energy and cost savings from installing Wi-Fi communicating, analytics capable, or ENERGY STAR certified smart thermostats in New York State.
Window AC Cover
Calculate annual heating energy savings from installing insulated covers on room air conditioners (window or through-wall units) during the heating season in New York State.
LED Lighting
Calculate annual energy savings from upgrading to LED lighting in New York State. Supports both detailed and simplified calculation methods.
Smart Lighting
Calculate annual energy and cost savings from installing smart bulbs or smart switches with hub-controlled lighting in residential spaces in New York State.
Heat Pump Water Heater
Calculate annual energy and cost savings from switching to a heat pump water heater in New York State.
Storage Water Heater
Calculate annual energy savings from upgrading to an efficient gas or oil storage water heater in New York State.
Air Sealing
Calculate annual energy savings from sealing air leaks in your home's envelope (caulking, weatherstripping, etc.) in New York State.
Attic Insulation
Calculate annual energy savings from insulating and air sealing attic access points (hatches, pull-down stairs, knee walls) in New York State.
Energy Efficient Windows
Calculate annual energy savings from upgrading to energy efficient windows in New York State.
Home Insulation
Calculate annual energy and cost savings from adding wall, ceiling, rim joist, or floor insulation to reduce thermal conductance of the building envelope in New York State.