Registry, engineering, and operating metrics shown on a consistent EIA basis.
| Metric | Markum Solar Farm | Elm Branch Solar 1 |
|---|---|---|
| Capacity | 161 MW | 134.7 MW |
| Technology | Solar Photovoltaic | Solar Photovoltaic |
| Operator | Markum Solar Farm, LLC | Lightsource Renewable Energy Asset Management, LLC |
| Operating units | 1 | 1 |
| Latest 12-month generation | 361.9 GWh | 246.3 GWh |
| Latest complete-year capacity factor | 25.9% (2025) | 21.4% (2025) |
| National technology rank | #244 of 7,234 | #355 of 7,234 |
| Latest EIA report | 2026-06 | 2026-06 |