Data last collected:
PowerPlantFactsEvidence report · prepared 19 October 2026https://powerplantfacts.com/entity/59434
EIA plant 59434
Indianapolis · Marion · IN
Duke Building 129
Operated by Concord New Energy
Published location
Where is Duke Building 129?
This locator uses the coordinates in the approved source record. It shows geographic context, not a site boundary, safety zone or property-risk area.
39.910833, -86.245278
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 IN 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.
1121
2314
3435
4466
5545
6430
7447
8432
9439
10437
11188
12163
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 | 121 |
| 2 | 314 |
| 3 | 435 |
| 4 | 466 |
| 5 | 545 |
| 6 | 430 |
| 7 | 447 |
| 8 | 432 |
| 9 | 439 |
| 10 | 437 |
| 11 | 188 |
| 12 | 163 |
2024 monthly net generation
| Month | Net generation |
|---|---|
| 1 | 121 MWh |
| 2 | 314 MWh |
| 3 | 435 MWh |
| 4 | 466 MWh |
| 5 | 545 MWh |
| 6 | 430 MWh |
| 7 | 447 MWh |
| 8 | 432 MWh |
| 9 | 439 MWh |
| 10 | 437 MWh |
| 11 | 188 MWh |
| 12 | 163 MWh |
Operating generators
| ID | Technology | Fuel | MW | Status |
|---|---|---|---|---|
| DU129 | Solar Photovoltaic | SUN | 3.4 | OP |
Continue exploring
Similar-capacity plants in the same state
Identity, technology and limitations
EIA plant ID
59434
Sector
IPP Non-CHP
Water source
Unavailable
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 Duke Building 129 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 Duke Building 129
Variation in the published months
Across 12 numeric monthly generation entries, 5 has the highest recorded value (545 MWh) and 1 the lowest (121 MWh). Their difference is 424 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 |
|---|---|---|---|---|---|
| DU129 | Solar Photovoltaic | 3.4 | 3.4 | 3.4 | Not supplied |
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.