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SEER2 Savings Calculator
for Louisiana Homes

Efficiency ratings are abstract until they're dollars on your Entergy bill. Compare your current system against a higher SEER2 rating using real Louisiana cooling hours and electricity rates.

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What a Higher SEER2 Rating Is Worth Here

Moving from an old 10 SEER system to a 16 SEER2 unit cuts cooling energy use by roughly a third, and that's just arithmetic: efficiency is the denominator in your cooling bill. In a state where the AC runs eight months a year, few upgrades touch more of your budget.

Pick your current rating and the one you're considering, set your system size, and the calculator shows monthly, annual, and 10-year savings. The defaults already reflect Louisiana: 2,200 cooling hours and about $0.11 per kilowatt-hour.

SEER2 Energy Savings Calculator

See how much you could save on cooling costs by upgrading to a higher-efficiency system. Defaults are set for a typical Louisiana home. Uses the current SEER2 rating standard.

Louisiana avg: ~$0.11/kWh

How to Read Your Results

The math is the standard industry formula: capacity times cooling hours, divided by efficiency, times your electric rate. Nothing exotic. What makes the number meaningful is the runtime: the calculator's 2,200-hour Louisiana default is nearly 50% more than a moderate climate, so every point of SEER2 works harder here.

Weigh the 10-year figure against the price difference between tiers, not against the whole system cost. You're buying the system either way; the question is whether the efficiency step-up pays for itself. Our price tables show exactly what each tier costs installed, so you can put both halves of the equation side by side.

One caveat worth knowing: efficiency ratings assume decent ductwork. If your ducts leak into a 130-degree attic, fix that first or the new system never gets to show off. It's part of what we evaluate during an installation consultation, and you can read more about the rating itself in our SEER2 guide.

SEER2 Savings Calculator FAQs

What SEER rating should I choose for Louisiana?
In Louisiana's hot, humid climate, we recommend at least SEER 16 for good efficiency. SEER 18-20+ units offer the best long-term savings, especially with our cooling season running from April through October. Higher SEER systems also tend to dehumidify better, which matters as much as temperature here.
What's the difference between SEER and SEER2?
In 2023, the Department of Energy replaced SEER with SEER2, which uses a more realistic test that accounts for actual ductwork resistance instead of perfect lab conditions. The number looks lower but the equipment performs the same: a system previously rated 20 SEER is roughly 19 SEER2. Everything sold today is rated in SEER2, and this calculator uses the SEER2 standard.
How does the calculator figure my savings?
It's the standard industry energy formula: your system's capacity in BTU, times annual cooling hours, divided by efficiency, times your electricity rate. The defaults are set for Louisiana: about 2,200 cooling hours a year and roughly $0.11 per kilowatt-hour. Change either one to match your home and the results update.
Why does Louisiana make high efficiency pay off faster?
Savings scale with runtime. Our cooling season runs roughly March through October, which is why the calculator defaults to 2,200 annual cooling hours instead of the 1,500 or so typical of milder states. The same efficiency upgrade that takes a decade to pay for itself up north can get there in half the time here.
Will I really see these exact savings?
Treat the results as a well-grounded estimate, not a guarantee. Actual savings depend on your insulation, ductwork condition, thermostat habits, and usage patterns. Leaky ducts in a Louisiana attic can eat a chunk of any efficiency gain, which is why we check ductwork as part of every installation assessment.

More Free HVAC Tools

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Decide if your current system is worth another repair.

AC Sizing

Estimate the tonnage your home needs.

Prefer a Human Answer?

Calculators get you close. Our comfort advisors get you certain. Call (337) 893-5646 or schedule a free in-home assessment.

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