Planning a backyard pool is exciting, but as homeowners start digging into the details, questions about ongoing costs eventually come up. One of those costs is electricity, since pumps, heaters, and other pool equipment rely on power to keep everything running.
So how much electricity does a pool actually use each month? The answer depends on several factors, including the type of equipment you choose, how often it runs, and whether features like heaters or spas are involved.
Let’s break down the common types of pool equipment and what homeowners typically spend on electricity each month.
How Much Electricity Does an Inground Pool Use Each Month?
Every pool is a little different, but most homeowners today can expect monthly electricity costs to fall within a few general ranges depending on how the pool is set up.
Here’s a realistic look at what you might expect with modern equipment:
- Variable-speed pump system: $30–$80 per month
- Pool heat pump: $100–$400 per month (when in use)
- Inground spa (hot tub): $150–$400+ per month depending on use
How Much Electricity Does a Variable-Speed Pool Pump Use?
Today, variable-speed pumps are the standard for new pool installations, and for good reason.
They’re significantly more energy-efficient than older single-speed or 2-speed pumps because they can run at lower speeds for longer periods of time, instead of blasting at full power.
Most pool owners run their pump at a lower speed for most of the day to keep water circulating and clean, and only increase speed when needed (like during cleaning or heavy use).
Typical monthly cost: $30–$80
How Much Electricity Does a Pool Heat Pump Use Per Month?
Heat pumps are one of the most common ways to heat a pool using electricity.
They’re generally efficient, but they do use a noticeable amount of power—especially during cooler weather or when maintaining higher temperatures.
The biggest factors that affect cost are:
- Your climate
- Desired water temperature
- How often the heater runs
Typical monthly cost: $100–$400 (when actively heating)
How Much Does an Inground Hot Tub Add to Your Electric Bill?
Standalone hot tubs can add a noticeable amount to your monthly electric bill since they’re designed to stay warm and ready to use.
Because hot tubs run at higher temperatures than pools, the heater and pump operate more frequently to maintain that heat, especially in cooler weather.
Typical monthly electricity cost: $150–$400+, depending on usage, temperature, and climate.
If you’re considering a built-in spa as part of your pool, it’s important to know that heating it typically requires additional equipment. In many cases, this means installing a separate heating system or upgrading your existing one, which can increase both upfront costs and ongoing energy use.
With multiple sizes and features to choose from, pricing can vary. Want a clearer idea of what your pool might cost? Try our Design and Price tool below.
Do Pools Significantly Increase Your Electric Bill?
In most cases, a pool will increase your electric bill, but not as much as many homeowners expect. For many pools with modern variable-speed pumps, the added electricity cost is often around $30–$80 per month. Costs can increase if you run features like heaters or hot tubs frequently.
The biggest factor is the equipment you choose. Energy-efficient pumps and thoughtful usage can keep monthly electrical costs relatively manageable while still allowing you to enjoy your pool throughout the swimming season.
Frequently Asked Questions
How much does it cost to run a pool each month in electricity?
Most inground pools today cost around $30–$80 per month to run with a variable-speed pump. Costs can increase to $100–$400+ per month if you regularly use a heater or spa.
What pool equipment uses the most electricity?
The pool pump and heater use the most electricity. The pump runs daily to keep water clean and circulating, while heaters, especially when used frequently, can significantly increase your monthly energy use.
How much electricity does a pool heater use?
Pool heat pumps typically cost around $100–$400 per month when in use. The exact cost depends on your climate, how warm you keep the water, and how often the heater runs.
Do variable-speed pool pumps really save money? (New)
Yes. Variable-speed pumps are designed to run at lower speeds for longer periods, which uses significantly less electricity. For most homeowners, this keeps monthly pump costs in the $30–$80 range.
About the Author
Planning for the long-term cost of owning a pool is something many homeowners think about as they research their options, and electricity usage is often part of that conversation.
My name is Marcus Sheridan, co-founder of River Pools® Virginia. For more than two decades, I’ve worked with homeowners researching and installing inground pools, answering common questions about operating costs, equipment, and long-term pool ownership.
I wrote this article to give you a clearer picture of how pool equipment can affect your monthly electrical usage so you can factor those costs into your decision with confidence.
From the Manufacturer
At River Pools, we regularly talk with homeowners who are trying to understand the long-term costs of owning a pool. While the excitement of designing a backyard pool is a big part of the process, many families also want a clear picture of what it may cost to operate their pool month to month.
Equipment choices, like pumps, heaters, and additional features, can all influence those operating costs.
If you’re considering a fiberglass pool and want to explore what it could look like in your backyard, the next step is connecting with a trusted independent installer in your area. They can evaluate your space, walk through equipment options, and help you plan a pool that fits your goals.
Ready to start the conversation?
