Solar panels in Casselberry, FL
See what solar and battery backup could save your Casselberry home on Duke Energy's rates, with full-retail net metering and $0-down options. Free, no-obligation quotes from installers serving Seminole County.
Free, no-obligation quotes. Savings vary by home and utility. $0-down offers are leases or loans and are subject to approval.
Photo: Aerial view of Lake Howell, Mx. Granger, CC0
By the FL Solar Deals Editorial Team · Updated October 2026 · How we research
Quick answer
Is solar worth it in Casselberry, FL?
For many homes, yes. With a $200 monthly Duke Energy bill, we estimate a 9.2 kW system costs about $24,800 and pays for itself in about 12.2 years, because Duke Energy credits exported solar at the full retail rate. Panels in Casselberry produce roughly 1,480 kWh per kW each year on an unshaded, south-facing roof.
How much does solar cost and save in Casselberry?
- Electric utility
- Duke Energy
- County
- Seminole County
- Population (2020)
- about 28,800
- Solar output per kW
- ~1,480 kWh/year
- System for a $200/mo bill
- ~9.2 kW (23 panels)
- Typical Duke Energy rate
- ~14.9¢/kWh
- Est. cost / payback
- $24,800 / ~12.2 yrs
- 25-year savings
- $64,900
Estimates for a cash purchase on an unshaded, south-facing roof with a $200 monthly bill. Your roof and rate plan will change the numbers. How we estimate
What would a solar estimate look like for a Casselberry home?
Estimates for Casselberry homes at four common bill sizes. Bigger bills need bigger systems that cost more up front, but payback stays about the same, because every kWh the panels make is credited at Duke Energy's full rate. Homes that use more than 1,000 kWh a month pay a higher rate on the extra, so they often do a little better than shown.
| Monthly bill | System size | Panels | Roof space | Cost | Payback |
|---|---|---|---|---|---|
| $150/mo | 6.4 kW | 16 | ~340 sq ft | $17,300 | 12.3 yrs |
| $200/mo | 9.2 kW | 23 | ~480 sq ft | $24,800 | 12.2 yrs |
| $300/mo | 14.4 kW | 36 | ~760 sq ft | $38,900 | 12.3 yrs |
| $400/mo | 20.0 kW | 50 | ~1,050 sq ft | $54,000 | 12.2 yrs |
How does solar work with Duke Energy in Casselberry?
Casselberry is a lake-dotted Seminole County city on Duke Energy Florida with its own building division.
Most homes in Casselberry get their electricity from Duke Energy Florida. Duke Energy net meters under the Florida PSC's rule: power your panels send to the grid comes back as a kWh credit at the full retail rate, credits roll forward for up to 12 months, and anything left at year-end is paid out at only a few cents per kWh. So the best Casselberry systems are sized to cover a year of use, not more. See the full Duke Energy solar guide.
Solar can't take your bill below Duke Energy's monthly minimum of about $30.
These estimates apply to homes with mailing addresses in Casselberry, including ZIP codes 32707, 32730.
Compare solar across nearby towns on the Seminole County solar page.
Is your Casselberry home a good fit?
About 60% of homes in Casselberry are owner-occupied, and the median owner-occupied home is valued at $299,200, compared with 68% and $359,000 statewide, according to the U.S. Census Bureau (2020-2024 estimates).
- You own the home. Rooftop solar requires owning the roof.
- Your roof gets sun for most of the day on its south, west or east side, without heavy tree shade.
- Your roof has years of life left. Replacing an aging shingle or tile roof before installing saves a removal and reinstall fee later.
- Your Duke Energy bill is regularly over about $150 a month, or you're adding an EV or a pool pump.
Not sure? A specialist can check satellite imagery of your Casselberry roof as part of your free quote.
How do I choose a solar company in Casselberry?
Check these before you sign with any solar company serving Casselberry:
- A Florida contractor license. Look up the company's license on the Florida DBPR license search and make sure it's active.
- Permits and utility paperwork included. The price should cover the permit with the City of Casselberry or Seminole County, inspections and the Duke Energy net metering application.
- Two or three quotes compared on price per watt, equipment and warranties. Our solar quote checker flags high prices and other red flags, and our guide to choosing a solar company covers the rest.
Or request a free quote for your Casselberry home from one of our trusted Florida partners.
Can I add hurricane battery backup to solar in Casselberry?
Yes. A battery stores your solar power and keeps chosen circuits running when the Duke Energy grid goes down, which standard solar alone can't do: grid-tied panels shut off in an outage. After a storm, the panels recharge the battery each sunny day until the grid comes back. One 13.5 kWh battery runs about $13,000 installed at recent South Florida prices, with no utility or state rebate.
One battery usually covers essentials; running central air usually takes two or more. Because Duke Energy already credits exported solar at the full rate, a battery's value is backup, not a lower bill. See solar battery backup for hurricanes.
What permits and paperwork does solar need in Casselberry?
- Duke Energy Florida serves Casselberry and has upgraded its Casselberry substation, with pole and line upgrades and tree trimming on the circuits it feeds.
- After days of heavy rain in November 2023, the lakeside Summerloch Green neighborhood flooded even as most of Central Florida dried out, Spectrum News 13 reported.
- The City of Casselberry Building Division takes permits through an online portal, has used the 2023 Florida Building Code since January 1, 2024, and says residential permits typically take 5 to 7 business days.
- Hurricane Milton eroded two Casselberry drainage ditches in the Gee Creek basin, and in 2026 the city put the repairs out to bid.
- 1
Building permit
Your installer applies to the City of Casselberry or Seminole County for the permit, with plans designed to Florida Building Code wind loads, and an inspector checks the finished work. Since July 2025, state law lets a private provider review residential solar and battery plans, with a decision due within 5 business days.
- 2
Duke Energy net metering application
Your installer applies to Duke Energy to connect the system. Most home systems are Tier 1 (up to 10 kW), with no application fee.
- 3
Meter swap and permission to operate
After the final inspection, Duke Energy installs a net meter and gives permission to turn the system on.
- 4
Property tax
Florida law keeps the value solar adds out of your home's assessment. If you're unsure whether anything needs to be filed, ask the Seminole County Property Appraiser.
Local sources: Duke Energy: Casselberry grid improvements; Spectrum News 13: Casselberry neighborhood deals with flooding after rain (Nov. 2023); City of Casselberry: Building Division; City of Casselberry: Building FAQs; Spectrum News 13: Casselberry moves forward with drainage repairs (Oct. 2026)
How much could solar save your Casselberry home?
Get an instant solar estimate for your Casselberry home: enter your bill to see a system size, cost, payback and what battery backup adds.
Your estimate
- System size
- 9.2 kW
- about 23 panels
- Yearly production
- 13,616 kWh
- vs. about 13,691 kWh used
- First-year savings
- $2,029
- about $169/month
- Payback
- 12.2 years
- $64,900 saved over 25 years
| Estimated costNo Florida state or utility rebate applies; sales tax is already exempt. | $24,800 |
|---|
Planning estimate only, not a quote. Assumes a south-facing roof, a cash purchase and a system sized to cover up to a year of use. Real numbers depend on your roof, equipment and rate plan. How we estimate
How it works
- 1
Enter your ZIP
We confirm your home is in Florida and which utility serves it.
- 2
Answer a few questions
Your typical electric bill, your roof and how you'd like to pay. It takes about two minutes.
- 3
Talk to a local specialist
A Florida installer models your real savings from your bills and roof, with battery backup if you want it. You decide what happens next.
Where else near Casselberry can you get solar quotes?
What should Casselberry homeowners know before going solar?
Casselberry solar FAQ
Who is the electric utility in Casselberry, FL?
Most homes in Casselberry are served by Duke Energy Florida. Some addresses near town edges may be on a city-owned utility or an electric co-op, so check the name on your bill.
Are there solar rebates in Casselberry?
Not from the state or Duke Energy. What Casselberry homeowners do get is full-retail net metering from Duke Energy, no sales tax on solar equipment, and no property tax on the value solar adds to the home. The 30% federal homeowner credit ended after 2025.
How much do solar panels cost in Casselberry?
For a home with a $200 monthly bill, we estimate a 9.2 kW system at about $24,800, which pays for itself in about 12.2 yrs. A lease can bring the upfront cost to $0. Try the solar savings calculator, or get a free quote for real numbers on your Casselberry home.
How much electricity do solar panels produce in Casselberry?
About 1,480 kWh per year for each kW of panels on an unshaded, south-facing roof, so a 9.2 kW system would make roughly 13,616 kWh a year. Shade, roof direction and pitch can lower that.
Will solar keep my power on during a hurricane in Casselberry?
Only with a battery. Grid-tied panels shut off when the Duke Energy grid goes down, for the safety of line crews; a battery keeps chosen circuits running and the panels recharge it each sunny day.
Can my HOA in Casselberry stop me from going solar?
No. Florida law bars HOAs and deed restrictions from prohibiting solar panels. The association can choose where on the roof they go, as long as the spot faces south or within 45° east or west of due south and doesn't keep them from working well.
Get a free solar quote for your Casselberry home
Free, no-obligation quote from a trusted Florida solar partner.