Solar panels in Seminole County, FL

• Seminole County's solar submittal guidelines call for either a Florida Solar Energy Center system certificate or a Florida engineer's certification, plus sealed engineering showing the panels, racking and roof can handle the wind and weight.
• Seminole County handles permits, plan submittals and inspections online through Seminole County OneStop.
• During Hurricane Milton in October 2024, about 82,400 of Seminole County's 229,600 Duke and FPL accounts (36%) were without power at one point, per the Public Service Commission.
• FPL's 2025 report to the Public Service Commission lists 1,957 customer-owned solar systems on its lines in Seminole County, 277 of them connected in 2025, by our count. See Florida solar by county.

Permits and zoning rules are set town by town. Highlights from each town's own rules:

• 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.
• Chuluota: Chuluota sits east of the Econlockhatchee River, on FPL's side of the line; next-door Oviedo is split, with Duke Energy Florida west of the C.R. 419 bridge and FPL east of it. Homes near the river should confirm their utility.
• Geneva: After Hurricane Ian in 2022, the St. Johns River above Lake Harney crested well above its 12.7-foot flood of record, and floodwater got into homes in Geneva.
• Heathrow: Heathrow has two layers of homeowners associations: a master association with a nine-member board that enforces the master covenants, and 13 neighborhood associations with their own boards, so a solar plan may need approval at both levels. Florida's s. 163.04 lets them set placement but not ban panels.
• Lake Mary: Duke Energy Florida serves most of Lake Mary, but FPL serves small portions of the city, so check the name on your bill before you size a system.
• Longwood: On March 10, 2025, an EF-2 tornado touched down near Wekiwa Springs State Park and tracked through neighborhoods in the Longwood area, including Wingfield Reserve and Whispering Winds; Seminole County estimated about $10 million in damage to roughly 52 homes.
• Oviedo: Oviedo has two electric utilities. The city says Florida Power & Light serves areas east of the C.R. 419 Econlockhatchee River bridge, including The Sanctuary and Riverside, and Duke Energy Florida serves the west side, with some exceptions. This page uses Duke's rates; if your bill is from FPL, see FPL solar.
• Wekiva Springs: Seminole County's Wekiva watershed study covers the western part of the county that drains to the Wekiva River, about 56 square miles, and the plan was updated in July 2023.
• Winter Springs: During Hurricane Ian in September 2022, Seminole County Fire rescued 80 Winter Springs residents from rising floodwater.

Each town page has the full details and sources.

No. Under Florida law (s. 193.624), the value a solar system adds to a home isn't counted in its assessed value. If you're unsure whether anything needs to be filed, ask the Seminole County Property Appraiser.

Solar equipment is also exempt from Florida sales tax, so it's already left out of the installed price.

Duke Energy and FPL credits the solar you send to the grid as a kWh credit at the full retail rate. Unused 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 systems are sized to cover a year of use. Solar can't take a bill below the monthly minimum ($30 at Duke Energy, $30 at FPL).

See the full Duke Energy solar guide. See the full FPL solar guide.

Choosing a company? Check each installer's Florida license, compare at least two quotes and run them through our solar quote checker.