What does a swimming pool pump cost to run?
A typical swimming pool pump running at its typical daily hours costs about $92/month to run in New Zealand - that's $1105/year at the current national average rate of 42.0c/kWh. Heavier use in summer
| Region | Rate | Monthly |
|---|---|---|
| Dunedin | 42.4c/kWh | $93 |
| Queenstown | 42.3c/kWh | $93 |
| Auckland Central | 41.2c/kWh | $90 |
| Christchurch | 38.5c/kWh | $84 |
| Wellington City | 37.0c/kWh | $81 |
This estimate models a typical swimming pool pump running at its typical daily hours. At the national average rate of 42.0c/kWh, that works out to about 219 kWh a month - $92/month, or $1105 across a year.
- Power draw
- 1,200 W
- Typical use
- 6 hrs/day, 7 days/week
- Rate applied
- 42.0c/kWh (national average)
- Energy used
- 219 kWh/month · 2,628 kWh/year
Your own usage will differ - adjust the hours, wattage and rate for your household in the full calculator.
What to know about running a swimming pool pump
A swimming pool's filtration pump is a seasonal heavyweight that is easy to overlook. At around 1,000-1,500W and running for hours every day through summer to keep the water clear, it can become one of the larger items on the bill in the warmer months. Pools that run their pump too long simply waste power without improving water quality.
The job itself is unglamorous but relentless. The pump circulates the whole pool through the filter to keep the water clean and safe, and it has to move a lot of water to do it, which is why a 1,000-1,500W motor running for hours a day adds up so quickly once summer arrives and the pool is in use.
The catch is that more running time past a certain point does nothing useful. Once the water has turned over enough to stay clear, extra hours are pure waste, yet plenty of pumps are set to run far longer than the pool actually needs, quietly burning power for no benefit while the owner assumes longer must mean cleaner.
So the first change is simple: turn the run time down to what the water actually needs, because many pumps are set to run far longer than necessary, and cutting daily hours to the minimum that keeps the pool clean is a direct saving. Trim the timer back, watch the water, and settle on the shortest schedule that keeps it clear.
Second, the pump runs on a schedule you control, so it is an ideal load to shift onto a cheaper night rate. There is nothing that says the filtering has to happen during the expensive daytime peak, so if your plan offers cheap overnight power, set the pump to do its hours then and pay the lower rate for the same work.
A variable-speed pump, run slower for longer, also uses dramatically less energy than an old single-speed unit doing the same filtering, because the power a pump draws climbs steeply with speed. If you are still on an old single-speed motor, that upgrade is one of the biggest levers of all. Put your pump's wattage and hours into the calculator to see how much the run time and rate are costing you over a summer.
Frequently asked
How much does a swimming pool pump cost to run in NZ?
At the national average electricity rate of 42.0c/kWh, a typical swimming pool pump costs about $92 per month, or $1105 per year. Actual costs vary by region and how heavily you use it.
Which NZ region has the cheapest swimming pool pump running cost?
Of the five centres shown on this page, Wellington City is the cheapest at $81/month, and Dunedin is the most expensive at $93/month. The 30% spread reflects regional MBIE retail rates.
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