Runtime creates the monthly load
A 1.1 kW pump running eight hours per day uses about 264 kWh in a 30-day month. Required runtime depends on water quality, pump flow, pool volume, equipment, and local requirements.
Variable speed can change the economics
Pump power can fall substantially at lower speeds, although filtration must still meet the pool’s needs. Use measured watts at the programmed speed for a useful comparison.
Do not reduce circulation blindly
Energy savings should not compromise sanitation or equipment requirements. Adjust schedules using the pool professional’s guidance and actual water-quality results.