Energy Savings Helper
Illinois Energy Calculators
Estimate your annual energy and dollar savings from home efficiency upgrades. Based on IL TRM v14.0.
Water Heating
ILHeat Pump Water Heater
Calculate annual energy and cost savings from installing a heat pump water heater in Illinois. Includes HVAC interaction effects for cooling, heating, and dehumidification.
Weatherization
ILHigh Performance Windows
Calculate annual energy and cost savings from upgrading to ENERGY STAR High Performance Windows in Illinois using the IL TRM v14.0 deemed savings methodology.