Rocky Mountain Energy Center
Weld County, Colorado · EIA plant ID 55835 · Operator: Public Service Co of Colorado
Nameplate685MWSummer 592 MW
Generators3in service
Net generation3,098GWh12 mo to Aug 2026
Capacity factor60%gas/coal/oil units, summer MW
Heat rate7,689Btu/kWhfossil units, electric fuel, HHV
First online2004Runs as baseload
The 12-month figures include preliminary EIA-923 months, which EIA revises. Final data runs through Dec 2025.
Monthly net generation
EIA-923, all units at the plant. Net of station use; storage can go negative.
FinalPreliminary
Capacity factor by year
Net MWh ÷ (summer MW × hours), gas/coal/oil units. Each year uses that year's EIA-860 ratings; the hollow dot is the latest 12 months.
Heat rate by year
Electric fuel MMBtu × 1000 ÷ net MWh (Btu/kWh, HHV), fossil units only; CT + CA counted as one combined-cycle block.
Annual data table
| Year | Net GWh | Capacity factor | Heat rate (Btu/kWh) |
|---|---|---|---|
| 2004 | 2,095.9 | 58.6% | 7,617 |
| 2005 | 3,155.8 | 59.3% | 7,516 |
| 2006 | 2,899.9 | 54.4% | 7,175 |
| 2007 | 3,220.6 | 60.5% | 7,678 |
| 2008 | 3,383 | 63.3% | 7,389 |
| 2009 | 3,562.9 | 66.9% | 7,460 |
| 2010 | 2,908.6 | 55.3% | 7,176 |
| 2011 | 2,665 | 52.4% | 7,590 |
| 2012 | 2,451.4 | 48.1% | 7,512 |
| 2013 | 1,777 | 35.0% | 7,577 |
| 2014 | 2,452.8 | 48.3% | 7,613 |
| 2015 | 1,848 | 36.4% | 7,705 |
| 2016 | 1,860.5 | 36.5% | 7,769 |
| 2017 | 1,975.4 | 38.9% | 7,754 |
| 2018 | 2,315.7 | 45.6% | 7,851 |
| 2019 | 2,531.7 | 49.8% | 7,927 |
| 2020 | 3,039.7 | 59.7% | 7,810 |
| 2021 | 1,985.7 | 39.1% | 7,896 |
| 2022 | 2,540.7 | 50.0% | 7,767 |
| 2023 | 2,384.6 | 46.9% | 7,688 |
| 2024 | 2,933.4 | 56.4% | 7,487 |
| 2025 | 2,435 | 46.9% | 7,548 |
Generators
EIA-860 (annual) with EIA-860M updates through Sep 2026. EIA-923 reports generation by plant, prime mover and fuel, not by unit, so unit-level output isn't shown.
| Gen ID | Technology | Prime mover | Nameplate MW | Summer MW | Online | Status | Planned retirement | OEM / model |
|---|---|---|---|---|---|---|---|---|
| CTG1 | Natural Gas Fired Combined Cycle | CT | 175.1 | 146 | May 2004 | Operating | — | coming soon |
| CTG2 | Natural Gas Fired Combined Cycle | CT | 175.1 | 146 | May 2004 | Operating | — | coming soon |
| STG1 | Natural Gas Fired Combined Cycle | CA | 334.9 | 300 | May 2004 | Operating | — | coming soon |
Owner / operator
Operator: Public Service Co of Colorado. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Public Service Co of Colorado | 100.0% | 685 MW |
Nearby plants
Within 80 km.
| Overland | 11 MW | 6.5 km |
| Keenesburg Battery Storage | 12 MW | 7.3 km |
| Mountain Peak Power Station | 163 MW | 7.4 km |
| Rattlesnake Ridge Battery Storage | 12 MW | 11.9 km |
| SR Jenkins Ft Lupton | 13 MW | 12.9 km |
| SR Platte Solar Farm | 16 MW | 13 km |