Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/689
EIA plant 689
St Marks · Wakulla · FL
S O Purdom
Operated by City of Tallahassee - (FL)
Published location
Where is S O Purdom?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
30.162304, -84.200673
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Capacity is not generation. Nameplate MW describes equipment; annual MWh describes recorded output. Proposed and retired units are not added to operating capacity.
Equipment mix
Operating capacity by technology
Grouped from this plant’s represented generator records. Use the FL plant index for regional peers.
See the evidence
Electricity output across the year
Monthly net generation shows the seasonal shape of this plant's represented output. A negative value is retained when the source reports net consumption.
1129,878
2120,087
3129,274
477,115
5110,808
6124,161
7123,196
8130,706
9111,139
1099,879
1130
1250,039
MWh net generation · 2024 final edition · EIA 923 represented operating rows. 12 of 12 supplied rows shown; 0 missing values omitted. Months with no reported numeric value are omitted, not treated as zero.
Read the chart as a table
| Record | MWh net generation |
|---|---|
| 1 | 129,878 |
| 2 | 120,087 |
| 3 | 129,274 |
| 4 | 77,115 |
| 5 | 110,808 |
| 6 | 124,161 |
| 7 | 123,196 |
| 8 | 130,706 |
| 9 | 111,139 |
| 10 | 99,879 |
| 11 | 30 |
| 12 | 50,039 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 129,878 MWh |
| 2 | 120,087 MWh |
| 3 | 129,274 MWh |
| 4 | 77,115 MWh |
| 5 | 110,808 MWh |
| 6 | 124,161 MWh |
| 7 | 123,196 MWh |
| 8 | 130,706 MWh |
| 9 | 111,139 MWh |
| 10 | 99,879 MWh |
| 11 | 30 MWh |
| 12 | 50,039 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 8 | Natural Gas Fired Combined Cycle | NG | 180 | OP |
| 9 | Natural Gas Fired Combined Cycle | NG | 90.1 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
689
Sector
Electric Utility
Water source
St. Marks River
Data edition
2024-final
Use this record
Questions this evidence can answer
01What exactly is this record?
Use the name, place, date and identifiers above to confirm that you have the right S O Purdom power plant: capacity and generation | PowerPlantFacts record.
02What does the evidence establish?
Read the reported values with their units, coverage dates and source notes. Keep observed facts separate from estimates or interpretation.
03What should I verify next?
Follow the primary-source links and check the limitations before using this evidence for a decision, comparison or citation.
A closer look at S O Purdom
Variation in the published months
Across 12 numeric monthly generation entries, 8 has the highest recorded value (130,706 MWh) and 11 the lowest (30 MWh). Their difference is 130,676 MWh. Missing months have not been treated as zero.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| 8 | Natural Gas Fired Combined Cycle | 180.0 | 154.0 | 182.0 | 120.0 |
| 9 | Natural Gas Fired Combined Cycle | 90.1 | 72.0 | 76.0 | 50.0 |
EIA-860 2024 final source. Ratings describe capacity, not actual generation or availability. Missing ratings are not zero.
Source: US Energy Information Administration Form EIA-860 2024 plant and operable-generator workbooks; archive 2024. US EIA-authored information is generally public domain; cite EIA, preserve third-party exceptions, changes and no-endorsement context. Source-specific derived data.