Florida Solar Estimate

Florida

Solar in St. Augustine, Florida

A south-facing roof in St. Augustine makes about 1,519 kWh per kW each year, about the Florida average; a typical home's net-zero system here is about 8.7 kW, costs as low as $18,980 installed, and pays back in about 11 years on Florida Power & Light rates.

See the numbers for your St. Augustine address

At a glance

Sunlight per kW
1,519
kWh a year, about the Florida average
Typical system
8.7 kW
net zero for 1100 kWh a month
Installed cost
as low as$18,980
up to $23,198
Payback
as low as9.2 yrs
9.2–12.4 yrs at 2.7%/yr

Typical electrically heated home, 1100 kWh a month, best-case figures with the range shown. Sources.

Who sends your bill

At the center of St. Augustine the service-territory layer shows Florida Power & Light. Boundaries are coarse at town edges, so your bill is the final word; the utility finder checks any address.

What the sun does in St. Augustine

  • A south-facing roof at a 30° pitch makes about 1,519 kWh per kW a year, about the Florida average.
  • March is the best month at about 146 kWh per kW; December the worst at about 108. Spring is the strongest season and summer afternoons bring clouds, so the net-zero size is set on the whole year, not on the hottest month, and how your utility credits exports decides what the summer surplus is worth.
  • Roof direction and pitch change the yield by a quarter or more; the estimate reads your actual roof from satellite imagery and fills south-facing planes first.
  • Air conditioning roughly doubles an August bill compared with February, so a single bill is annualized with Florida's monthly load shape rather than multiplied by twelve.

A typical St. Augustine home: 1100 kWh a month, electric heat

Net-zero system
8.7 kW
1519 kWh per kW per year
Installed cost
as low as$18,980
up to $23,198
First-year savings
up to$1,880
at least $1,649
Payback
as low as9.2 yrs
9.2–12.4 yrs at 2.7%/yr

Valued at Florida Power & Light rates (13.6¢/kWh energy); Florida's tax exemptions included. Your roof, usage and heating change every number.

Questions St. Augustine homeowners ask

How much do solar panels cost in St. Augustine?
For a electrically heated home using about 1100 kWh a month, a net-zero system of about 8.7 kW costs roughly $18,980 to $23,198 installed at current Florida cash prices, before any incentive. Larger homes and electric heat need bigger systems; your address gives a real figure in about a minute.
How long does solar take to pay for itself in St. Augustine?
About 9.2 to 12.4 years for that typical home on Florida Power & Light rates, assuming electricity prices rise 2.7% a year. Florida Power & Light's own rules (fixed charge, net-metering credits) are built in.
Which utility serves St. Augustine?
At the city centre the service-territory layer shows Florida Power & Light. Boundaries are coarse at town edges, so your bill is the final word.
Does solar work through St. Augustine's summers and storm season?
Yes, with a seasonal shape: March makes about 146 kWh per kW and December about 108. Summer is when the system earns most of its keep: production peaks in the same months as air conditioning, so more of it is used on site. Hurricane wind loads are an engineering and insurance question for the installer, not a production one.
What incentives apply in 2026?
Florida exempts solar equipment from sales tax and keeps the value it adds off your property-tax bill, and both are already in these figures. Business-owned systems, including rental property, qualify for the 30% federal investment credit (Section 48E) and bonus depreciation when placed in service by the end of 2027; tax-exempt owners receive the 30% as cash. Not tax advice.

On the map

Tampa Electric (TECO)Duke Energy FloridaFlorida Public Utilities (FPUC)Kissimmee Utility Authority (KUA)Lake Worth Beach Electric UtilityLakeland ElectricLee County Electric Cooperative (LCEC)City Of LeesburgBaldwin County El Member CorpCity Of Moore HavenCity Of BartowCity Of Mount DoraNew Smyrna Beach Utilities CommissionCity Of NewberryOcala Electric UtilityPeace River Electric Cooperative (PRECO)Orlando Utilities Commission (OUC)City Of QuincyReedy Creek Improvement DistSouthern Pine Electric CooperativeCity Of StarkeSECO Energy (Sumter Electric Cooperative)Suwannee Valley Electric Cooperative (SVEC)City of Tallahassee UtilitiesTalquin Electric CooperativeThree Notch Electric Member CorpCity Of BlountstownTri-County Electric Cooperative (Madison)Alabama PowerCity Of AlachuaCity Of WauchulaWest Florida Electric CooperativeCity Of WillistonWiregrass Electric CooperativeWithlacoochee River Electric Cooperative (WREC)City Of BushnellOkefenoke REMCCentral Florida Electric Cooperative (CFEC)City Of ChattahoocheeChoctawhatchee Electric Cooperative (CHELCO)Clay Electric CooperativeCity Of ClewistonColquitt Electric Membership CorpCovington Electric CooperativeCity of Winter Park Electric UtilityEscambia River Electric Cooperative (EREC)Florida Keys Electric Cooperative (FKEC)City Of Fort MeadeFort Pierce Utilities AuthorityGainesville Regional Utilities (GRU)Georgia PowerGlades Electric CooperativeGrady Electric Membership CorpCity Of Green Cove SpringsGulf Coast Electric CooperativeHavana Power & Light CompanyCity Of HomesteadBeaches Energy Services (Jacksonville Beach)JEA (Jacksonville)Florida Power & Light
St. Augustine (gold) and Florida Power & Light service territory. Hover a region to see its utility.

Nearby: Palm Coast, Jacksonville, Daytona Beach, Port Orange, Deltona, Gainesville. All Florida cities.

Sources

Every figure on this page comes from the documents and models below, with the date each was produced or last checked.

  1. Sunlight and monthly production for St. Augustine
    Effective November 1, 2026 · Checked November 1, 2026 · Read from the primary source
  2. Florida Power & Light rates and net-metering rules (worked example)
    Effective October 1, 2026 · Checked November 1, 2026 · Read from the primary source
  3. Which utilities serve the area
    Checked November 1, 2026 · Read from the primary source
  4. Installed cost, savings and payback
    Checked November 1, 2026 · Read from the primary source

Spot an error? Email mtsolarestimate@gmail.com. How the estimate is built: methodology.

Your St. Augustine address, your numbers

The estimate reads your roof, takes your real usage and applies your utility’s rules. About a minute, no contact details asked.