Christiana
New Castle County, Delaware · EIA plant ID 591 · Operator: Calpine Mid-Atlantic Generation LLC
Nameplate55MWSummer 50 MW
Generators2in service
Net generation1GWh12 mo to Dec 2025
Capacity factor0%gas/coal/oil units, summer MW
Heat rate28,297Btu/kWhfossil units, electric fuel, HHV
First online1973Runs as rarely runs
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) |
|---|---|---|---|
| 2001 | 4.8 | — | — |
| 2002 | 2.6 | — | — |
| 2003 | 2.5 | 0.6% | 17,154 |
| 2004 | 0.7 | 0.2% | 22,914 |
| 2005 | 1.2 | 0.3% | 19,998 |
| 2006 | 0.6 | 0.2% | 24,857 |
| 2007 | 0.2 | 0.1% | — |
| 2008 | 0.1 | 0.0% | — |
| 2009 | 0.4 | 0.1% | 27,191 |
| 2010 | 0.5 | 0.1% | 26,810 |
| 2011 | 0.1 | 0.0% | — |
| 2012 | 0 | 0.0% | — |
| 2013 | -0.1 | -0.0% | — |
| 2014 | 1.2 | 0.3% | 25,492 |
| 2015 | 1.1 | 0.3% | 18,160 |
| 2016 | 0.1 | 0.0% | 21,618 |
| 2017 | 0.2 | 0.0% | — |
| 2018 | 0.8 | 0.2% | — |
| 2019 | 0.2 | 0.1% | — |
| 2020 | 0 | 0.0% | — |
| 2021 | 0.2 | 0.0% | 27,900 |
| 2022 | 1.5 | 0.3% | 23,457 |
| 2023 | 0.2 | 0.1% | — |
| 2024 | 0.2 | 0.1% | — |
| 2025 | 0.8 | 0.2% | 28,297 |
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 |
|---|---|---|---|---|---|---|---|---|
| CH11 | Petroleum Liquids | GT | 27.5 | 25 | Jun 1973 | Operating (Standby / backup) | — | coming soon |
| CH14 | Petroleum Liquids | GT | 27.5 | 25 | Jun 1973 | Operating (Standby / backup) | — | coming soon |
| CHCH | Petroleum Liquids | GT | 56 | 44 | Jun 1973 | not_current | — | coming soon |
Owner / operator
Operator: Calpine Mid-Atlantic Generation LLC. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
| Calpine Mid-Atlantic Generation LLC | 100.0% | 55 MW |
Nearby plants
Within 80 km.
| WHA Southbridge Solar Park CSG | 1 MW | 1.1 km |
| DD Hay Road Solar 23 LLC | 1 MW | 2.3 km |
| Hay Road | 1,098 MW | 3 km |
| Edge Moor | 710 MW | 3 km |
| Croda Atlas Point CHP | 4 MW | 4.1 km |
| South Campus Solar | 2 MW | 5.8 km |