The electric bill shows demand, kW demand, peak demand, capacity, or a charge based on the highest usage interval.
Demand charges are based on peak power, not total kWh alone. Running several high-load appliances at the same time can create a charge even if monthly kWh looks reasonable.
Check first
Find demand, kW, peak demand, or capacity charge lines.
Check the time window or interval used to set peak demand.
Look for EV charging, HVAC, dryer, oven, pool pump, or water heater overlap.
Compare the demand charge with energy and delivery charges.
Practical savings moves
Avoid stacking flexible high-load appliances during the same peak window.
Shift EV charging, laundry, or pool pump runtime where practical.
Use demand-charge math before changing total kWh habits.
Review whether the rate plan still fits your household pattern.
Avoid these mistakes
Do not compare demand-charge bills by monthly kWh only.
Do not turn off essential heating, cooling, or safety equipment just to avoid a peak.
Do not ignore fixed fees that remain after reducing peak demand.