Columbia, MO AC Rebates and Lower Cooling Bills

AC rebates and lower cooling bills in Columbia

Replace an AC or heat pump with one rated 15.2 to 18.1 SEER2 and City of Columbia Utilities sends $800; go to 18.2 SEER2 or above and it is $1,200. Beyond the rebate, most of the savings on a Columbia summer bill come from two cheap things: the thermostat setting and a clean filter.

Updated October 29, 2026 · Sources at the bottom of the page

What Columbia Utilities pays

Equipment replaced	Efficiency	Rebate
AC or heat pump	15.2 to 18.1 SEER2	$800
AC or heat pump	18.2 SEER2 and up	$1,200
Geothermal system	under 5 tons	$1,200

From the City of Columbia Utilities rebate page, accessed October 29, 2026. Money is handed out first come, first served until each fiscal year's budget runs out.

The fine print, as the utility states it: You have to be a City of Columbia Utilities electric customer, the new unit has to replace an existing system (new construction doesn't qualify), it must be rated at least 15.2 SEER2, and the application and paid receipt are due within six months of installation. The city's final mechanical permit is required, and the utility may deny a rebate for a unit that is oversized for the house. Before paying, the utility may inspect the installation and run a combustion safety test. An incomplete application gets 30 days to be corrected.

Columbia Utilities also lists a reduced heat pump rate for October through May, and a low-interest loan through its Home Performance with ENERGY STAR program.

All of this is for City of Columbia Utilities electric customers. If your electric bill comes from someone else, a rural electric cooperative for instance, ask that provider what it offers.

Thermostat settings

The DOE's Energy Saver guide recommends the highest setting you are comfortable with while you're home and awake, and a higher one overnight or when the house is empty. A running ceiling fan, it says, lets you nudge the thermostat up about 4°F with no loss of comfort. In a humid house keep the blower on AUTO rather than ON. Why the fan setting matters.

Filter and outdoor coil

ENERGY STAR advises checking a central AC or heat pump filter every month. A clogged one stretches every cooling cycle and can ice the coil. Keep plants and cottonwood fluff off the condenser and have the system checked once a year. Tune-ups.

A high bill can be a symptom

If the bill climbs with no heat wave behind it, suspect a part on its way out, a slow refrigerant leak or leaking ductwork. With 42.7 days a year at 90°F or more at the airport over 2016-2025, compare July with last July, not with April. Repair or replace.

On the federal side, the IRS says the 25C credit for central air and heat pumps does not cover equipment placed in service after December 31, 2025.

What Boone County homeowners ask us

Is there a Columbia Water and Light rebate for a new air conditioner?

City of Columbia Utilities lists $800 for a replacement AC or heat pump rated 15.2 to 18.1 SEER2 and $1,200 at 18.2 SEER2 or higher, for its electric customers. New construction is excluded, and you have six months from installation to apply.

Do I need a permit to get the Columbia rebate?

Yes. The utility requires the city's final mechanical permit, which the contractor normally pulls.

What thermostat setting saves money in summer?

The DOE says the warmest setting you're comfortable with while home and awake, and warmer still when you're asleep or out. A ceiling fan buys you about 4°F.