Electricity guides
Electricity Cost Guides
Start here when an electricity-cost estimate is stuck because an input, measured kWh value, household pattern, or bill comparison needs clarification. Choose the one question that will move your estimate forward.
Choose one next step
What is stopping your estimate?
Browse only when needed
Use a guide for the one question that remains
The groups below are for a second question, not a reading list. Once the next number is clear, return to a calculator with that source and period still attached.
Missing input or unit
Open one of these only when the estimate is blocked by a missing number or an unclear unit.
- I need the wattage: find the wattage source to use.
- I am confused by watts and kWh: separate power from energy use.
- I need the rate per kWh: choose the rate to enter.
- I need to choose numbers from my bill: separate inputs from bill-level items.
Measured kWh or known numbers
Price the kWh directly when its period is clear. Use this guide only when the measurement itself needs a check.
- I measured kWh with a smart plug: price the measured period.
Household examples
- I want a home office example: compare devices in one work setup.
- I want to estimate space heater use: set the heater-session boundary.
- I want to estimate refrigerator use: choose annual, measured, or fallback input.
- I want to estimate air conditioner use: choose the cooling-use setup.
- I want to estimate overnight fan use: map one night first.
- I want dryer cost per load: define one load first.