Lower energy bills
How to Measure Household Electricity Use
Measuring electricity use turns a vague high bill into specific loads and patterns you can investigate. Start with the safest data sources and only use electrical test equipment you understand.
Read kilowatt hours on your bill
Your utility bill reports energy consumption in kilowatt hours. Compare similar billing periods and account for seasonal changes before deciding whether usage has really increased.
Use utility interval data
Many utilities provide hourly or shorter interval usage through an online account. Patterns can reveal overnight loads, heating and cooling cycles, and unusually heavy periods.
Measure plug in appliances
A plug in energy meter can measure compatible appliances over hours or days. This is useful for refrigerators, entertainment equipment, computers, and many other cord connected loads.
Use equipment ratings carefully
A nameplate wattage tells you useful information, but actual consumption depends on operating time and cycling. Measuring over time usually gives a better estimate.
Whole home monitoring
Whole home monitors can provide broader data, but installation may involve an electrical panel. Use appropriate equipment and qualified installation where required.
Turn measurements into decisions
Estimate monthly kilowatt hours for major loads, then compare possible improvements by expected energy reduction, cost, comfort, and practicality.