Many households see electric bills jump in summer and stay high for months. This is mainly caused by air conditioning and higher demand for electricity.
This page is part of the Electric Bill Explained guide, which breaks down every section of a typical U.S. gas bill in plain English.
Summer Energy Use
Air conditioning uses more electricity than almost any other home appliance. When many homes run AC at the same time, electricity costs also rise.
Main Causes of Summer Spikes
Air Conditioning
Uses 3–5 kWh per hour and can be 40–60% of summer usage.
Longer Run Times
AC may run all day during heat waves.
Peak Demand Pricing
Utilities buy more expensive power.
Poor Efficiency
Dirty filters and bad insulation increase usage.
More Daytime Use
More people home during hot days.
Example: Monthly AC Cost
Running AC 6 hours per day at 3 kWh per hour:
- 18 kWh per day
- About 540 kWh per month
- Around $90 per month at $0.17 per kWh
Why Summer Costs More
Summer bills rise because electricity use and electricity prices increase at the same time. Cooling choices have the biggest impact.
To understand how seasonal usage changes impact all water-related charges, visit Water Bill Explained.