The bill rises in warm months and pool pump hours, speed, or cleaning schedules changed.
A pool pump can run for many hours per day. Even moderate wattage becomes expensive when the timer runs longer than needed across a full billing period.
Check first
Check daily pump runtime and whether the timer changed.
Confirm pump wattage or speed setting.
Compare pool season bills with non-pool months.
Separate pool electricity from water refill and sewer charges.
Practical savings moves
Reduce runtime only within safe pool maintenance guidance.
Use timers consistently instead of manual overrun.
Compare single-speed and variable-speed assumptions when planning upgrades.
Check whether extra cleaning or heat waves changed runtime.
Avoid these mistakes
Do not blame the pool pump for all summer cost if AC also ran heavily.
Do not reduce runtime below what keeps water safe and clear.
Do not forget pool fill water cost when water bills also rose.