Mare Branch
Mare Branch is a 75 MW solar farm in DeSoto County, Florida, operated by Florida Power & Light Co. EIA-860M lists 1 generating unit here. Its unit entered service in 2026.
As of 2026-07 (inventory dated 2026-07-31) · EIA-860M Preliminary Monthly Electric Generator Inventory · eia.gov/…/july_generator2026.xlsx · eia.gov/…/eia860m
- Nameplate capacity
- 74.5 MW
- 74.5 MW net summer
- Generating units
- 1
- In service
- 2026
- EIA plant ID
- 65905
Where it is
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- County
- DeSoto County, Florida
- Coordinates
- 27.3037, -81.7674
- Balancing authority
- FPL
- Sector
- Electric Utility
Units, technology and status
- Operator of record
- Florida Power & Light Co
- Primary energy source
- Solar
- Technologies
- Solar Photovoltaic
- Status
- Operating
Mare Branch: FAQ
- Where is Mare Branch?
- In DeSoto County, Florida (FL). The map on this page is placed at the coordinates EIA files for the plant, which locate the site rather than any individual unit.
- How big is Mare Branch?
- 75 MW of nameplate capacity across 1 unit, as of the EIA-860M release for 2026-07.
- Who owns Mare Branch?
- EIA-860M names Florida Power & Light Co as the reporting entity. That is the operator of record on the survey, which is not always the ultimate owner.
- Is this the same as Mare Branch LLC?
- Probably, but EIA-860M does not say. The survey records a plant name and a reporting entity — Florida Power & Light Co here — not the project company that holds the asset. Project companies are commonly registered as an LLC carrying the plant's name, so a search for "Mare Branch LLC" usually means this site. This page shows only what EIA files, and does not assert a corporate structure it cannot see.
- Is Mare Branch still running?
- EIA-860M files it as "Operating" for 2026-07. Statuses change monthly, and this page follows the monthly release.