What Does Irrigation Cost to Run in Texas?
Last updated: October 18, 2026 · 6 min read
If you've got a sprinkler system keeping the lawn green — or a pump watering a garden, a few beds, or a small patch of pasture — it's fair to wonder how much of your electric bill it's quietly running up. The honest answer comes down to one thing: whether a pump is doing the work, or whether your city water pressure is.
The short answer
If your sprinklers run straight off city water pressure, the system itself uses almost no electricity — just a small controller and some valves. Your real cost there is the water bill, not power. It's when a pump moves the water — from a well, a pond, or a booster — that electricity starts to add up, because a pump running for hours moves a lot of energy. A common 1.5 HP pump run a couple hours a day might add only $14–18 a month, but a big, well-fed watering habit in a Texas summer can run far more.
First, Figure Out What Actually Moves Your Water
There are really two kinds of irrigation setup, and they land on very different parts of your bill. The first runs on city water pressure. The water company has already pressurized the water at the street, so the only electric parts of your system are the controller box on the garage wall and the zone valves it clicks open and shut on a timer. Those sip a few watts — genuinely pennies a month. If that's you, your irrigation "cost" is a water question, not a power one.
The second kind is pump-fed. If your water comes up from a well, gets drawn out of a pond or storage tank, or runs through a booster pump because the house pressure is weak, then an electric motor is doing the lifting and pushing — and that motor is what shows up on your electric statement. If a well feeds your system, our water-well pump cost guide digs into that specific motor in more detail.
Where the Electricity Adds Up: The Pump
A pump is just an electric motor turning power into water pressure and flow, and moving water is real work. The longer the motor runs, the more kilowatt-hours it burns — it's that simple.
Here's a worked EXAMPLE — and please plug in your own pump size and rate, because both vary a lot. Say you have a 1.5 HP pump. Under load, a pump like that pulls somewhere around 1.5 to 2 kilowatts. Run it two hours a day and you're using roughly 90 to 120 kilowatt-hours a month. At about 15¢ per kWh, that lands around $14 to $18 a month.
EXAMPLE assumptions: 1.5 HP pump · ~1.5–2 kW draw under load · 2 hours/day · 30 days · 15¢/kWh. Change any one of those — a bigger pump, a deeper well, longer summer runtimes — and the number climbs quickly. These are illustration numbers, not your bill, so read your own pump's nameplate and your own rate.
What Drives the Cost Up or Down
Four levers do most of the work on a pump-fed system. Pump size (horsepower) sets how much the motor draws every minute it runs. Hours of runtime is the one you control most directly — double the watering time and you roughly double the cost. Well depth or lift matters because pulling water up from 300 feet is far harder work than nudging it out of a shallow pond, so a deep well burns more watts for the same gallons. And how many zones you run, and for how long, decides the total. A little pond pump feeding a garden is a different animal from a deep well pump on a hot afternoon.
How to Water for Less
The good news is that almost everything that saves water on an irrigation system also saves power, because both come down to runtime:
- Water in the cool early morning. Far less evaporates before dawn, so the same green lawn needs less runtime — and less runtime is less pumping.
- Use a smart controller with rain and soil-moisture sensors and seasonal adjust. It skips watering after a storm and dials back in the mild spring and fall instead of running the same schedule year-round.
- Fix leaks and broken heads. A geyser from a cracked or tilted head is pump time you're paying for and water you're not using.
- Right-size the pump. An oversized pump wastes watts every minute it runs; match it to what your property actually needs.
- Group watering into fewer, efficient cycles rather than lots of short bursts, so the motor isn't kicking on and off all day.
Plans, Time of Day, and Texas Watering Rules
Two outside factors can shift your cost. First, your plan. If you're on a time-of-use or free-nights plan, running the pump in the cheap overnight window can trim what those hours cost — that's the same idea covered in our guide on when Texas electricity rates are lowest. But be honest about it: most rural co-op members aren't on time-of-use plans at all, so for the majority of folks, cutting total runtime saves more than chasing cheap hours.
Second, the rules. Most Texas cities set seasonal watering-day restrictions during drought — assigned days, and often no watering in the heat of midday. Follow them. They're built to save water, and every hour you're not pumping is an hour of power you don't pay for, so they quietly cut both bills at once.
The summer double-whammy
Texas heat drives the heaviest watering in July and August — the exact months your bill is already at its yearly high from the air conditioner. A thirsty, well-fed system can stack its runtime right on top of your worst power months, so lean hardest on early-morning watering and sensors when it's hottest.
Bigger Setups: Ranches and Pools
If your watering is really a whole-property question — acreage with stock tanks, or several pumps working at once — the load looks different, and our farm and ranch electricity guide covers that scale. And if you're tallying up the motors around the house, don't overlook the pool pump — it often runs far more hours a day than a sprinkler system ever does, and it's usually the bigger surprise on the bill.
See what every pumping hour really costs
The rate you pay per kilowatt-hour sets the floor under every hour that pump runs. Compare every plan in your ZIP at your real usage in under a minute.
Compare Plans Free →Common Questions
Does a home sprinkler system use much electricity?
If it runs straight off city water pressure, almost none. The only electric parts are the little timer on the wall and the zone valves it clicks open, and together those sip just a few watts — pennies a month. In that setup your real irrigation cost is the water bill, not the power bill. It is only when a pump moves the water that electricity becomes a real line on your statement.
How much does it cost to run a well pump for irrigation in Texas?
It depends on the pump size, how long it runs, and how deep the water sits. As a rough EXAMPLE, a 1.5 HP pump draws somewhere around 1.5 to 2 kW under load. Run it two hours a day and that is roughly 90 to 120 kWh a month, which at about 15 cents per kWh comes to around 14 to 18 dollars a month. A bigger pump, a deeper well, or long summer runtimes push that well past those numbers, so use your own pump size and rate.
What is the cheapest time of day to run irrigation?
Early morning is best for two reasons. The cooler air means far less water evaporates, so the same green lawn needs less runtime, and less runtime is simply less power. If you are on a time-of-use or free-nights plan, running the pump in the cheap overnight or pre-dawn window helps too. Most rural co-op members are not on time-of-use plans, though, so for most folks cutting total runtime saves more than chasing the clock.
Will a smart irrigation controller lower my electric bill?
If a pump feeds your system, yes, indirectly. A smart controller with rain and soil-moisture sensors and seasonal adjust skips watering you do not need — after a storm, or in the mild spring and fall — and every hour the pump does not run is power you do not pay for. On a system fed by city water pressure it mainly saves water rather than electricity, but that is still money worth keeping.