Your SVEC or FPL bill climbed while your habits stayed put: reading it the way a Live Oak technician does
Before anyone sells you a new system, read two bills side by side. The kilowatt-hour line, not the dollar line, says whether the cooling system is the culprit.

Line one: kilowatt-hours, not dollars
Pull this month’s bill and the same month from last year. Ignore the dollar total for a minute; rates change and fuel charges move. Find the kilowatt-hours used. If the kWh figure is close to last year’s and only the dollars went up, the utility changed its pricing and the air conditioner is innocent. If the kWh jumped by a quarter or more with the same weather and the same household, keep reading.
Line two: the weather
Was it hotter? Live Oak’s July highs are the hottest in north Florida, and a stretch of 96-degree afternoons instead of 92 pushes a healthy system to run noticeably longer. SVEC and FPL both publish average temperatures or degree days on the bill or online; a ten percent increase on a hotter month is weather. A forty percent increase on a similar month is a fault.
Line three: the rest of the house
A new well pump that runs constantly because of a leak, a pool pump left on a bad timer, a second refrigerator in the barn, a hot water heater with a failed element. Rule them out before blaming the air conditioner. If the bill jumped in a month when the air conditioner barely ran, March or November, it is almost certainly not the air conditioner.

The HVAC suspects, in the order we check them
- Heat strips running in summer. A stuck sequencer or a thermostat wiring fault can leave the electric backup heat energized while the system cools, so the compressor spends its summer cancelling out a space heater. Nothing feels wrong inside. The bill can double. A clamp meter on the strip circuit is where our visit begins, and the fault is more common in older heat pumps than anyone expects.
- Leaking ducts. A belly duct torn under a manufactured home near McAlpin or attic flex hanging loose in a River Woods two-story sends cooled air you paid for into the crawlspace or attic. The system runs far longer to make it up.
- Low refrigerant. A slow leak drops capacity, so the system runs long hours to do the same job. It eventually freezes the coil or kills the compressor; the bill is the early warning.
- A dirty outdoor coil or clogged filter. Pollen, pine straw and grass clippings make the compressor work harder for every degree. Cheap to fix, expensive to ignore.
- A failing compressor or capacitor. Drawing more current than its nameplate every hour it runs.
- The system is simply old and inefficient. A 10 SEER unit from the 1990s uses far more electricity than a current 15.2 SEER2 heat pump for the same cooling. This is a replacement conversation, and we have it with the kWh numbers in hand rather than a sales pitch.
How a high-bill visit runs in Live Oak
We bring the bills into it. Current readings on the compressor, blower and strips are compared against nameplate; the strips are checked for unwanted operation; the ducts are tested for leakage; the charge is checked; the coil and filter are inspected. You get a written list of what is burning the extra kilowatt-hours and what each fix costs. If the answer is “the system is old and the house needs a new one,” you also get the efficiency comparison and the FPL instant-credit eligibility for in-town customers, paid through the utility’s participating contractors, with Cook’s enrollment status to confirm [[CONFIRM WITH JERRY]]. The federal 25C credit expired with the 2025 tax year, and this page won’t claim it survives.
What the fix usually costs you, in plain terms
A stuck heat strip relay is a small part and the bill drops the next month. Duct sealing is a half-day of labor that pays back over a summer or two. A refrigerant leak repair depends entirely on where the leak is. A new system is the largest outlay and the only one that also improves comfort, and it is the one that can go on a monthly plan, with the terms in writing before you sign.
Keeping the bill honest
Keep last summer’s bills. Change the filter after pollen season. Have the strips, charge and ducts checked every spring. Put a surge protector on the disconnect before the next lightning season. And if a bill ever jumps with no change in the house, read the kWh line first and call second.
High-bill questions from co-op and FPL customers around Live Oak
SVEC's bill shows a higher rate than my cousin pays on FPL in town. Is that the AC's fault?
No. The two utilities set different rates and the co-op has to maintain lines across a lot of rural miles per customer. Compare your own kilowatt-hours year over year, not your bill against a neighbor’s on a different utility.
The bill climbed right after a two-week outage. Coincidence?
Often not. Surge damage or rough generator power can leave a system running with a weak capacitor, a stuck contactor or a damaged board that keeps the compressor or strips running longer than they should. We see a wave of these after every storm season.
Would a smart thermostat alone lower the bill?
It helps when the schedule was the problem and nobody was setting it back. It does nothing for a leaking duct or a stuck heat strip. SVEC has a smart thermostat program worth asking about; ask what it requires and what it pays. [[CONFIRM WITH JERRY]]
How old does a system have to be before high bills mean replace rather than repair?
Age alone does not decide it. A fifteen-year-old system that is well maintained and correctly charged may be fine. The bill becomes a replacement argument when the system is both old and inefficient and the repair list is growing; then the operating savings of a new high-efficiency unit are real money every month.
Same thermostat setting, bigger bill?
Call with the kilowatt-hour numbers in front of you. Often we can say over the phone whether the cooling system is to blame.