Mosaic New Wales Operations — Plant Summary
- EIA Plant ID
- 10434
- Capacity
- 135.5 MW
- Primary Fuel
- WH
- Technology
- All Other
- Status
- Operating
- Location
- Polk, FL
- Operating Since
- 1981
- Generators
- 4
- Operator
- Mosaic Fertilizer LLC
- Parent Company
- —
- Annual Generation
- 365,651 MWh
- Capacity Factor
- 30.8%
- Balancing Authority
- Tampa Electric Company
- ISO/RTO
- —
- NERC Region
- SERC
Mosaic New Wales Operations
OperatingWaste Heat
Ranked #1 of 4 Waste Heat plants in FL#1 of 33 nationally
135.5 MW Waste Heat operating in Polk, FL — Tampa Electric Company
EIAWD
135.5 MW
Nameplate Capacity
4
Generators
units
All Other
Technology
1981
Operating Since
Location
Coordinates
27.8336, -82.0519
County
Polk, FL
Nearby Plants
- DurranceSolar60 MW · 7.6 km
- Jamison Solar (FL)Solar74.5 MW · 9.3 km
- Magnolia SolarSolar74.5 MW · 9.4 km
Ownership & Operator
| Field | EIA | GEM | Wikidata |
|---|---|---|---|
| Operator | Mosaic Fertilizer LLC | — | — |
| Owner(s) | Mosaic Fertilizer LLC | — | — |
| Status | Operating | — | — |
Ownership Chain
No GEM tracker match for this plant — ownership chain unavailable.
About
Mosaic New Wales Operations is a 135.5 MW power plant located in Polk County, Florida. The plant began operating in 1981 and is owned and operated by Mosaic Fertilizer LLC. It utilizes waste heat (WH) as its primary fuel source and consists of four generators employing "All Other" technologies. The balancing authority for the plant is Tampa Electric Company, and it falls within the SERC NERC region.
In the most recent year with available data, Mosaic New Wales Operations generated 365,651 MWh of electricity, achieving a capacity factor of 30.8%. According to available rankings, the plant is the largest of its kind in Florida and also holds the top position nationally.
Generated from EIA, GEM, and public data sources
Engineering & Generators
Grid Context
NERC Region
SERC
Balancing Authority
Tampa Electric Company
Grid Voltage
69 kV
Regulatory Status
NR
Entity Type
Industrial
Sector
Industrial CHP
Generation
30.4K MWh
Latest Month
365.7K MWh
Annual Generation
30.8%
Capacity Factor
Jan 2023 – Dec 2025
Financial Data
No financial data available for this plant.
Pricing & Market Data
This plant is outside organized wholesale electricity markets (ISOs/RTOs). Nodal pricing data is not available.
News & Articles (10)Beta
Industry·earnings
Mosaic cuts 2025 phosphate forecast on plant setbacks, shares drop
The Mosaic Company (NYSE: MOS) has lowered its full-year 2025 phosphate production guidance as the fertilizer giant navigates a series of operational...
Mosaic Company (other)
Mining.com·9 months ago
Industry·other
Phosphate mining has transformed the Florida landscape over the years
This Phosphate mine shows the steam shovel being introduced. This scene is from Anthony, in Marion County. The steam shovel not only could...
Florida (other)
Sarasota Herald-Tribune·1 years ago
Regulatory·federal policy
Public Comment Sought on Radioactive Road Pilot
Just as the Tampa Bay area was bracing for what was then forecast to be a Category 5 hurricane, the U.S. Environmental Protection Agency...
Tampa Bay (other)U.S. Environmental Protection Agency (regulator)
Coastal Breeze News·1 years ago
Industry·other
The troubled Mosaic phosphate mine reports a possible gypstack liner tear
One of Florida's biggest phosphate mines is reporting a possible tear in the lining that keeps waste from polluting the environment.
Mosaic (other)
WUSF·2 years ago
Last updated 2026-03-14
View all 10 articles