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Energy Efficiency Calculators
Energy Resource Center
Learn where your energy dollars are going.
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Start saving $ here
All Around Your Home: Home Energy Saver Calculator
Lawrence Berkeley Lab provides a whole-house calculator.
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Link to the whole house calculator
Appliances: Apogee Appliance Calculator
Calculate what it costs to operate appliances in every room in your home.
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Link to this appliance calculator
Appliances - Various
Calculate electrical usage for various items from energyusecalculators.com.
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learn more
Appliances: Refrigerator Replacement Calculator
How much can you save by getting rid of an old refrigerator and
replacing it with an Energy Star model?
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Estimate your savings here
Appliances: TVs
Find out how much your TV costs to operate.
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Calculate TV costs
Farms: On-Farm Energy Use
Find a series of calculators to help you save energy on your farm.
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Find farm calculators here
Finding Energy Savings: Energy Star Home Advisor
Energy Star will provide suggestions for improving the energy efficiency of your home.
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See Energy Star suggestions
Finding Energy Savings: Home Energy Yardstick
From Energy Star: Use your utility bills to see how your home compares to others in energy use.
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Click here to compare
For Kids: Kids Korner Calculator
Find out how much energy appliances in your home cost to operate.
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Click here for Kids Korner Calculator
Heating and Cooling: Electric Space Heaters
Find out how much it costs to run electric space heaters.
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learn more
Heating & Cooling: Heat Pump Calculator
Estimated monthly savings by upgrading to an air source heat pump.
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Find savings here
Insulation: Insulation Fact Sheet
From the Department of Energy, use your Zip code and other information to determine the best insulation for your home.
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Calculate insulation needs for your home
Insulation: Wall Insulation Calculator
From the Oakridge Laboratory, assistance in calculating R-value for walls, around windows and doors, on a slab, etc.
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Calculate insulation R-value here
Lights: Lighting Savings Calculator
Compare annual operating costs for old incandescent, halogen incandescent, CFL and LED bulbs.
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Calculate lighting costs
Vehicles: Cost Calculator
Compare the cost to operate various vehicles using your driving habits as a basis.
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U.S. Department of Energy
Water: Faucets and Showerheads
Calculate how much your faucets and showerheads are costing you.
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Begin calculations here
Water: Water Heaters
Calculate the operating cost of your water heater.
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Go to water heater calculator
Water: Shorter Shower Calculator
Calculate how much water your household uses per shower.
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Shorten showers calculator