Is Your AC Causing a High Electric Bill in McAllen?

McAllen and the surrounding Rio Grande Valley have one of the longest cooling seasons in the country. Systems often run from March into November, with peak demand across several consecutive months rather than a few weeks.

That means small inefficiencies compound. A restriction that adds thirty minutes of runtime per day is barely noticeable in April and clearly visible on an August bill.

It also means factors outside the equipment matter: outdoor temperature, electricity rates and plan changes, insulation, duct condition, window exposure, and household habits all move the number.

• A restricted filter forcing the blower to work harder
• Dirty indoor or outdoor coils reducing heat transfer
• A refrigerant charge problem, which may indicate a leak
• A failing capacitor or motor drawing more current
• Short cycling from control or sizing issues
• An aging compressor delivering less cooling per watt

• Thin or displaced attic insulation
• Duct leakage in a very hot attic
• Air leakage at windows, doors, and attic access points
• West-facing glass with no shading or film
• Room additions and enclosed patios added to the cooling area
• A thermostat located in direct sun or near a heat source

1. 1Compare this month to the same month last year, not to spring.
2. 2Confirm whether your rate or electricity plan changed.
3. 3Replace the air filter and note whether runtime improves.
4. 4Rinse debris away from the outdoor coil with power off.
5. 5Check that supply and return vents are open and unobstructed.
6. 6Set a consistent thermostat schedule instead of large swings.