How to slash your
Florida electric bill.

If you live in South Florida, your summer electric bill is probably your second-biggest household expense after your mortgage. And while the heat is unavoidable, your bill doesn't have to be.

We've worked with hundreds of South Florida homes and businesses on this exact problem. Here are the 10 strategies that actually move the needle — ranked from "free and easy" to "small investment, big payback."

1. Set your thermostat smarter (saves up to 10%)

The biggest single change you can make is setting your thermostat 2-3 degrees higher when you're not home. Each degree higher saves roughly 3% on cooling costs. The Department of Energy recommends 78°F when home, 82-85°F when away.

If 78°F sounds uncomfortable to you, try this: get there gradually. Bump your thermostat up 1°F every few days. Your body adjusts, and within 2-3 weeks, 78°F feels normal.

2. Get a programmable or smart thermostat (saves 8-15%)

If you don't have one yet, this is the highest-ROI HVAC upgrade you can make. A smart thermostat learns your schedule and adjusts automatically — pre-cooling before you arrive home, easing back when you leave, going up overnight when you sleep.

Brands like Nest, Ecobee, and Honeywell pay for themselves in 6-12 months in Florida.

3. Change your air filter every 30 days (saves 5-15%)

A dirty filter forces your system to work harder — using more electricity to move less air. We see this constantly in Florida homes. The fix is free: just check and replace your filter monthly.

Don't overthink filter MERV ratings. For most homes, MERV 8-11 is the sweet spot. Higher ratings restrict airflow and can actually hurt efficiency.

4. Use ceiling fans correctly (saves 4-8%)

Ceiling fans don't cool air — they cool people. The wind chill effect lets you set your thermostat 4°F higher with the same comfort level. But: turn off fans when you leave the room. Running fans in empty rooms is just wasted electricity (and slightly heats the room from the motor).

Make sure fans are spinning counterclockwise in summer (looking up at the fan).

5. Block direct sun on west and south windows (saves 10-15%)

The sun hitting your windows can add 15-30% to your cooling load. In Florida, where the sun is brutal, this is huge.

• Cheapest: Close blinds during peak sun hours (11am-5pm)
• Better: Solar control window film ($300-800 for a typical home)
• Best: Exterior shade — awnings, hurricane shutters partially closed, landscaping

6. Seal duct leaks (saves 10-30%)

Florida homes typically have ducts running through 130°F+ attics. Even small leaks let conditioned air escape into spaces you don't live in — and pull hot, dusty attic air into your living spaces.

This is where the savings get serious. Sealing duct leaks can reduce your AC energy use by 20-30%. We test and seal ducts as part of our maintenance plans, but you can also have it done as a one-time service.

7. Get an annual AC tune-up (saves 5-10%)

An AC system that hasn't been tuned up in 2+ years is operating at 80-85% of its design efficiency. Annual tune-ups restore peak efficiency and catch small problems before they become breakdowns.

The tune-up itself costs less than one month of efficiency loss for most Florida homes — meaning it pays for itself within the first 30 days.

8. Address shade trees and landscaping (saves 5-15%)

Trees on the south and west sides of your home can dramatically reduce your cooling load. Even partial shade on your AC condenser unit (without restricting airflow) helps it run more efficiently.

Florida-friendly options: live oaks, gumbo limbo, royal poinciana. Avoid trees that drop leaves into your condenser fins.

9. Address attic insulation (saves 10-20%)

Florida code minimum is R-30 attic insulation. Modern recommendations are R-38 to R-49. If your home was built before 2010, you probably have less than the current standard — and possibly less than the minimum if previous work was incomplete.

Adding insulation to an under-insulated attic is one of the highest-return home improvements you can make in Florida. Often pays back in 2-3 years.

10. Replace an aging AC system (saves 20-40%)

If your system is 12+ years old, the savings from a modern, efficient replacement are substantial. AC efficiency standards have improved dramatically — a new SEER2 16-18 system uses roughly half the electricity of a 2010-era SEER 13 unit for the same cooling output.

This is the biggest investment on the list, but if you're already approaching replacement timing, the energy savings should be a major factor in your decision. Read our guide on when replacement makes sense.

Florida-specific tips most articles miss

Pre-cool before peak rate hours (if you have time-of-use rates)

FPL and other Florida utilities increasingly offer time-of-use rates with much higher prices during peak hours (typically 12pm-9pm in summer). If you're on one of these plans, pre-cool your home in the morning when rates are lower, then let temperatures rise slightly during peak.

Watch for the "AC + dehumidifier" trap

Some homeowners run dehumidifiers separately to "help" their AC. This usually backfires — dehumidifiers add heat to the room they're in, making your AC work harder. Your AC is your dehumidifier in Florida. If humidity is a chronic problem, the AC system itself needs attention, not a separate appliance.

Don't close vents in unused rooms

Counterintuitive but true: closing vents in unused rooms doesn't save energy and can actually damage your system. Modern AC systems are balanced as a whole — restricting airflow creates pressure imbalances that hurt efficiency and can crack your heat exchanger over time.

Tracking your savings

FPL's online dashboard shows your daily and hourly usage. Track it after making changes to see real impact. Most homeowners doing 3-4 of the strategies above see $40-100/month savings in summer — adding up to $400-1,000 annually.

The biggest savings come from the boring stuff: maintenance, filters, and seal leaks. The fancy upgrades help, but they're never the highest-ROI move. Start with the basics.

Need help diagnosing your system?

If your bills feel too high but you're not sure why, we offer free in-home assessments. We'll check your system's efficiency, look for duct leaks, and tell you honestly where your biggest savings opportunities are. Schedule a free assessment.