1. Enter daily electricity use
Use meter data or an average number of kilowatt-hours per day.
2. Enter the electricity rate
Use the per-kWh energy charge from the bill.
3. Combine other monthly utilities
Add water, gas, sewer, trash, and similar monthly charges.
4. Set billing days
Match the approximate length of the utility billing period.
5. Review daily and annualized costs
Use the breakdown to identify the largest component.