A pool pump is a motor that can run for many hours. Single-speed pumps often draw 1,000–2,000 watts the entire time they are on. Variable-speed pumps can do the same turnover at a much lower wattage if you give them more hours at a low RPM. The expensive habit is a single-speed pump on a long timer “because that is how it was set.”
Filter pressure, a dirty basket, and a closed valve make the motor work harder. Heating the pool is a different, usually larger card (gas or electric). This page is the pump.
Gallons to fill the pool are a water card (pool fill), not this motor.
Set watts for your pump type and the timer hours. A variable-speed low setting should use a lower wattage, not the nameplate max.
At 18.8¢ per kWh, 1,500 watts for 8 hours is 12 kWh — about 2.26 a day. A variable-speed habit at 400 watts for 12 hours is 4.8 kWh — about 0.90. Same pool, different timer story.
Not the heater
Gas or electric pool heat is a different load. Fill water is a water card. This page is the circulation motor.
Related
Usage estimate only — not a utility bill, load calc, or advice.