outdoor · 4W typical
Running a sprinkler controller costs about $0.48/month.
That's the typical sprinkler controller at 4W, run 24 hours a day at the US-average rate of 16.5¢/kWh. Change any of those and the number moves — use the calculator below to see yours.
Estimated cost
Full-power draw for 24 hours at 16.5¢/kWh.
How you use it
Cost shifts with how long it's on.
The same sprinkler controller can cost very different amounts depending on usage patterns. Three common scenarios, at the US-average rate.
always-on
$0.48
per month
controller itself runs constantly
valve energize
$0.01
per month
solenoid draw during zone run
Where you live
$0.86 spread between the cheapest and priciest states.
Same appliance, same hours of use, different zip code — the monthly cost varies this much.
| State | Rate | Monthly | Yearly |
|---|---|---|---|
| Hawaii | 41.2¢ | $1.19 | $14.44 |
| California | 31.4¢ | $0.90 | $11.00 |
| Massachusetts | 30.8¢ | $0.89 | $10.79 |
| Connecticut | 28.7¢ | $0.83 | $10.06 |
| Rhode Island | 27.9¢ | $0.80 | $9.78 |
| New Hampshire | 24.6¢ | $0.71 | $8.62 |
| Alaska | 24.3¢ | $0.70 | $8.51 |
| New York | 22.3¢ | $0.64 | $7.81 |
| Maine | 22.1¢ | $0.64 | $7.74 |
| Vermont | 21.5¢ | $0.62 | $7.53 |
| Michigan | 19.3¢ | $0.56 | $6.76 |
| New Jersey | 19.1¢ | $0.55 | $6.69 |
| Maryland | 18.4¢ | $0.53 | $6.45 |
| Pennsylvania | 18.1¢ | $0.52 | $6.34 |
| District of Columbia | 17.8¢ | $0.51 | $6.24 |
| Wisconsin | 17.4¢ | $0.50 | $6.10 |
| Delaware | 17.2¢ | $0.50 | $6.03 |
| Illinois | 16.9¢ | $0.49 | $5.92 |
| Ohio | 16.6¢ | $0.48 | $5.82 |
| Nevada | 16.3¢ | $0.47 | $5.71 |
| Indiana | 15.8¢ | $0.46 | $5.54 |
| Virginia | 15.7¢ | $0.45 | $5.50 |
| Minnesota | 15.6¢ | $0.45 | $5.47 |
| Colorado | 15.4¢ | $0.44 | $5.40 |
| Alabama | 15.2¢ | $0.44 | $5.33 |
| West Virginia | 15.2¢ | $0.44 | $5.33 |
| Florida | 15.1¢ | $0.43 | $5.29 |
| New Mexico | 14.8¢ | $0.43 | $5.19 |
| Texas | 14.8¢ | $0.43 | $5.19 |
| Arizona | 14.7¢ | $0.42 | $5.15 |
| South Carolina | 14.7¢ | $0.42 | $5.15 |
| Kansas | 14.6¢ | $0.42 | $5.12 |
| Georgia | 14.2¢ | $0.41 | $4.98 |
| Iowa | 14.1¢ | $0.41 | $4.94 |
| North Carolina | 13.9¢ | $0.40 | $4.87 |
| Missouri | 13.6¢ | $0.39 | $4.77 |
| Oregon | 13.4¢ | $0.39 | $4.70 |
| Tennessee | 13.3¢ | $0.38 | $4.66 |
| Kentucky | 13.2¢ | $0.38 | $4.63 |
| Mississippi | 13.1¢ | $0.38 | $4.59 |
| Oklahoma | 13.1¢ | $0.38 | $4.59 |
| South Dakota | 12.7¢ | $0.37 | $4.45 |
| Montana | 12.4¢ | $0.36 | $4.34 |
| Nebraska | 12.2¢ | $0.35 | $4.27 |
| Arkansas | 12.1¢ | $0.35 | $4.24 |
| Washington | 12.1¢ | $0.35 | $4.24 |
| Louisiana | 11.9¢ | $0.34 | $4.17 |
| Wyoming | 11.6¢ | $0.33 | $4.06 |
| North Dakota | 11.5¢ | $0.33 | $4.03 |
| Utah | 11.4¢ | $0.33 | $3.99 |
| Idaho | 11.3¢ | $0.33 | $3.96 |
Efficient vs. inefficient
A $11.56/year difference across the wattage range.
Swapping a high-draw model for an efficient one pays for itself. Here's what that looks like annually at typical usage.
Most efficient
2W
$0.24 per month
$2.89 per year
Typical
4W
$0.48 per month
$5.78 per year
High draw
10W
$1.19 per month
$14.45 per year
When it hits hardest
summer peak
Heaviest May-Sept.
Ways to cut the cost
- 1
Upgrade to a smart controller with weather skip
Saves 20-30% in water AND solenoid cycles
- 2
Water early morning to avoid evaporation-forced re-runs
Cuts required cycles 10-20%
- 3
Use rain sensor — mandated in many states
Eliminates unnecessary runs
Real-world wattages
Pulled from actual spec sheets.
| Brand | Model | Watts |
|---|---|---|
| Rachio | 3 8-Zone | 3W |
| Orbit | B-hyve 57950 | 4W |
| Hunter | Pro-C | 6W |
Picks that actually move the needle
Three products worth comparing if you're thinking about upgrading or supplementing what you have.
Some links below are affiliate links. If you buy, we may earn a small commission — it never changes the price you pay, and we only recommend picks we would stand behind.
See also
Related appliances
Sources: www.energy.gov · www.energystar.gov
Last updated: 2026-04-13