LED bulbs use 75% less energy than incandescent bulbs — DOE
    Turning off lights when leaving saves $30-50/year per household — ENERGY STAR
    Standby power ('vampire load') can account for 5-10% of home energy use — DOE
    ENERGY STAR certified TVs use 25% less energy than standard models
    Programmable thermostats can save about 10% on heating/cooling — DOE
    Sealing air leaks can save 10-20% on heating and cooling costs — ENERGY STAR
    Heat pumps can reduce heating energy use by 50% vs. electric resistance — DOE
    Ceiling fans allow you to raise AC settings 4°F with no comfort loss — DOE
    Heating water accounts for about 18% of home energy use — DOE
    Low-flow showerheads save 2,700 gallons/year for a family of four — EPA
    Washing clothes in cold water can save $60+/year on water heating — ENERGY STAR
    Fixing a leaky faucet can save 3,000+ gallons/year — EPA
    ENERGY STAR refrigerators use 9% less energy than standard models
    Clean refrigerator coils annually for optimal efficiency — DOE
    Air-drying dishes instead of heat-dry saves 15-50% on dishwasher energy — DOE
    Proper attic insulation can cut heating/cooling costs by 15% — ENERGY STAR
    Windows can account for 25-30% of home heating/cooling energy use — DOE
    Window film can reduce solar heat gain by up to 70% — DOE
    Average US home solar system offsets 3-4 tons of CO₂ annually — EPA
    Solar panel costs have dropped 70%+ over the past decade — SEIA
    EVs cost about 60% less to fuel than gas vehicles — DOE
    Proper tire inflation improves gas mileage by 0.6% on average — DOE
    The average US household spends $2,000+/year on energy — EIA
    ENERGY STAR products have saved Americans $500 billion on energy bills
    LED bulbs use 75% less energy than incandescent bulbs — DOE
    Turning off lights when leaving saves $30-50/year per household — ENERGY STAR
    Standby power ('vampire load') can account for 5-10% of home energy use — DOE
    ENERGY STAR certified TVs use 25% less energy than standard models
    Programmable thermostats can save about 10% on heating/cooling — DOE
    Sealing air leaks can save 10-20% on heating and cooling costs — ENERGY STAR
    Heat pumps can reduce heating energy use by 50% vs. electric resistance — DOE
    Ceiling fans allow you to raise AC settings 4°F with no comfort loss — DOE
    Heating water accounts for about 18% of home energy use — DOE
    Low-flow showerheads save 2,700 gallons/year for a family of four — EPA
    Washing clothes in cold water can save $60+/year on water heating — ENERGY STAR
    Fixing a leaky faucet can save 3,000+ gallons/year — EPA
    ENERGY STAR refrigerators use 9% less energy than standard models
    Clean refrigerator coils annually for optimal efficiency — DOE
    Air-drying dishes instead of heat-dry saves 15-50% on dishwasher energy — DOE
    Proper attic insulation can cut heating/cooling costs by 15% — ENERGY STAR
    Windows can account for 25-30% of home heating/cooling energy use — DOE
    Window film can reduce solar heat gain by up to 70% — DOE
    Average US home solar system offsets 3-4 tons of CO₂ annually — EPA
    Solar panel costs have dropped 70%+ over the past decade — SEIA
    EVs cost about 60% less to fuel than gas vehicles — DOE
    Proper tire inflation improves gas mileage by 0.6% on average — DOE
    The average US household spends $2,000+/year on energy — EIA
    ENERGY STAR products have saved Americans $500 billion on energy bills
    LED bulbs use 75% less energy than incandescent bulbs — DOE
    Turning off lights when leaving saves $30-50/year per household — ENERGY STAR
    Standby power ('vampire load') can account for 5-10% of home energy use — DOE
    ENERGY STAR certified TVs use 25% less energy than standard models
    Programmable thermostats can save about 10% on heating/cooling — DOE
    Sealing air leaks can save 10-20% on heating and cooling costs — ENERGY STAR
    Heat pumps can reduce heating energy use by 50% vs. electric resistance — DOE
    Ceiling fans allow you to raise AC settings 4°F with no comfort loss — DOE
    Heating water accounts for about 18% of home energy use — DOE
    Low-flow showerheads save 2,700 gallons/year for a family of four — EPA
    Washing clothes in cold water can save $60+/year on water heating — ENERGY STAR
    Fixing a leaky faucet can save 3,000+ gallons/year — EPA
    ENERGY STAR refrigerators use 9% less energy than standard models
    Clean refrigerator coils annually for optimal efficiency — DOE
    Air-drying dishes instead of heat-dry saves 15-50% on dishwasher energy — DOE
    Proper attic insulation can cut heating/cooling costs by 15% — ENERGY STAR
    Windows can account for 25-30% of home heating/cooling energy use — DOE
    Window film can reduce solar heat gain by up to 70% — DOE
    Average US home solar system offsets 3-4 tons of CO₂ annually — EPA
    Solar panel costs have dropped 70%+ over the past decade — SEIA
    EVs cost about 60% less to fuel than gas vehicles — DOE
    Proper tire inflation improves gas mileage by 0.6% on average — DOE
    The average US household spends $2,000+/year on energy — EIA
    ENERGY STAR products have saved Americans $500 billion on energy bills
    EnergyBS
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    General Efficiency & DesignEnergyBS

    kW vs. kWh: Reading Your Electric Bill Like a Pro

    One is the speedometer; the other is the odometer. confuse them, and you'll never understand your energy usage. Here is the 101 guide.

    2 min read
    EnergyBS Research

    The Speedometer (kW)

    kW (Kilowatt) is a measure of Power (Rate of usage). It answers: "How hard is the house working right now?"

    • Turning on a microwave = +1.5 kW jump.
    • Turning on the AC = +4.0 kW jump.
    • Turning on an LED bulb = +0.01 kW jump.

    If you have a 10 kW solar system, that means at peak noon sun, it can generate energy at a rate of 10 kW.

    The Odometer (kWh)

    kWh (Kilowatt-Hour) is a measure of Energy (Quantity used over time). It answers: "How much did I use total?" It is Power x Time.

    • Running a 1 kW Heater for 1 Hour = 1 kWh.
    • Running a 1 kW Heater for 15 minutes = 0.25 kWh.
    • Running a 100-Watt (0.1 kW) bulb for 10 Hours = 1 kWh.

    You are billed for kWh. (Usually $0.15 to $0.40 per kWh).

    Why This Matters: The "Phantom" Test

    Go to your electric meter (smart meter) right now. look for the momentary "kW" reading. Turn off everything you think is on. Is the meter reading 0.0 kW? Probably not. It probably reads 0.4 kW (400 watts). That is your "Baseload" or "Vampire Load." 0.4 kW x 24 hours x 365 days = 3,504 kWh per year. At $0.20/kWh, that is $700/year you are paying for an empty house.

    The Strategy

    1. Reduce kW (The Peaks): Run the dryer and the oven at different times. This doesn't change your bill much (unless you have Demand Charges), but it's easier on your electrical panel.
    2. Reduce kWh (The Volume): This is where money is saved. Using LED bulbs reduces the kW draw slightly, but because lights are on for hours, the kWh savings are huge.

    Summary

    • kW = How fast you are burning money.
    • kWh = How much money you burned total.
    • To lower your bill, you need to lower the kW of the things that run for the most Hours (AC, Fridge, Router), not the things that run for 2 minutes (Toaster).

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