Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/126
EIA plant 126
Tucson · Pima · AZ
H Wilson Sundt Generating Station
Operated by Tucson Electric Power Co
Published location
Where is H Wilson Sundt Generating Station?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
32.160000, -110.904700
Open the interactive map ↗Map data © OpenStreetMap contributors
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 AZ 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.
155,060
253,277
365,338
4141,183
5175,152
6200,142
7244,636
8243,288
9190,728
10193,627
11140,566
12102,544
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 | 55,060 |
| 2 | 53,277 |
| 3 | 65,338 |
| 4 | 141,183 |
| 5 | 175,152 |
| 6 | 200,142 |
| 7 | 244,636 |
| 8 | 243,288 |
| 9 | 190,728 |
| 10 | 193,627 |
| 11 | 140,566 |
| 12 | 102,544 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 55,060 MWh |
| 2 | 53,277 MWh |
| 3 | 65,338 MWh |
| 4 | 141,183 MWh |
| 5 | 175,152 MWh |
| 6 | 200,142 MWh |
| 7 | 244,636 MWh |
| 8 | 243,288 MWh |
| 9 | 190,728 MWh |
| 10 | 193,627 MWh |
| 11 | 140,566 MWh |
| 12 | 102,544 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| 4 | Natural Gas Steam Turbine | NG | 173.3 | OP |
| ST3 | Natural Gas Steam Turbine | NG | 113.6 | OP |
| GT1 | Natural Gas Fired Combustion Turbine | NG | 27 | OP |
| GT2 | Natural Gas Fired Combustion Turbine | NG | 27 | OP |
| RIC1 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC10 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC2 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC3 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC4 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC5 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC6 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC7 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC8 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
| RIC9 | Natural Gas Internal Combustion Engine | NG | 18.8 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
126
Sector
Electric Utility
Water source
Wells
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 H Wilson Sundt Generating Station 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 H Wilson Sundt Generating Station
Variation in the published months
Across 12 numeric monthly generation entries, 7 has the highest recorded value (244,636 MWh) and 2 the lowest (53,277 MWh). Their difference is 191,359 MWh. Missing months have not been treated as zero.
Reading the MW column
In the 14 numeric rows displayed in this table, MW ranges from 18.8 (RIC1, RIC10, RIC2) to 173.3 (4). The difference is 154.5 in the column's stated units. This summary covers the displayed rows and retains the table's period and scope.
Generator capacity in different operating conditions
| Generator ID | Technology | Nameplate MW | Summer MW | Winter MW | Minimum load MW |
|---|---|---|---|---|---|
| 4 | Natural Gas Steam Turbine | 173.3 | 156.0 | 156.0 | 26.0 |
| GT1 | Natural Gas Fired Combustion Turbine | 27.0 | 24.0 | 26.8 | 5.0 |
| GT2 | Natural Gas Fired Combustion Turbine | 27.0 | 24.0 | 26.8 | 5.0 |
| RIC1 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC10 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC2 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC3 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC4 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC5 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC6 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC7 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC8 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| RIC9 | Natural Gas Internal Combustion Engine | 18.8 | 18.2 | 18.7 | 4.7 |
| ST3 | Natural Gas Steam Turbine | 113.6 | 104.0 | 104.0 | 25.0 |
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.