Pool pump 1 HP: how much battery you need1
Pool pump 1 HP draws about 1000 W (1000 W range), runs 100% of the time and uses 8000 Wh per day. Start-up surge: 2500 W.
Estimate from motor power; a variable-speed pump on low draws a fraction.
Battery needed
| Hours | Wh | Battery (Wh) | Inverter (W) |
|---|---|---|---|
| For 8 hours | 2667 | 4041 | 1100 / 2500 |
| For 24 hours | 8000 | 12122 | 1100 / 2500 |
| For 72 hours | 24000 | 36364 | 1100 / 2500 |
Open in calculator with this appliance →
Stations that fit (24 h)
Shop links are affiliate links: if you buy, we earn a small commission at no cost to you. Picks are based on your numbers, not on commission.
FAQ
How many watts does a Pool pump 1 HP use?
Typically 1000 W while running, with a range of 1000 W depending on model and age. Start-up surge can reach 2500 W.
How long will a 1000 Wh power station run a Pool pump 1 HP?
About 0.7 hours on the clock, allowing for the 100% duty cycle, inverter losses and a 20% reserve.
What size power station do I need for a Pool pump 1 HP overnight (8 h)?
About 4041 Wh of battery and an inverter rated at least 1100 W continuous with 2500 W surge.
Can I run a Pool pump 1 HP on solar during an outage?
You need roughly 5334 W of panels in winter to replace a day's use (8000 Wh), charging through a station with a big enough MPPT input.
Other sizes
Other appliances
1 Approximate values: estimated from motor or heater power and typical figures published online, not from a manufacturer chart. Check your appliance label.
Inverter efficiency 88%, usable depth of discharge 90%, reserve 20%. Full method: How we calculate.