Notch CliffRetired
Baltimore County, Maryland · EIA plant ID 1555 · Operator: Constellation Power Source Gen
×144 MW natural gas retired since 2020 (latest Jun 2020)
Nameplate—MWSummer — MW
Generators0in service
Net generation—GWh12 mo
Capacity factor—no 923 generation in the last 12 months
Heat rate—Btu/kWhfossil units, electric fuel, HHV
First online—
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), primary-fuel 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 | 13.2 | 1.2% | 17,212 |
| 2002 | 12.5 | 1.1% | 16,929 |
| 2003 | 2.2 | 0.2% | 17,555 |
| 2004 | 2.7 | 0.2% | 19,255 |
| 2005 | 20.8 | 1.9% | 18,785 |
| 2006 | 9.8 | 0.9% | 17,810 |
| 2007 | 22.7 | 2.2% | 18,452 |
| 2008 | 13.1 | 1.2% | 18,413 |
| 2009 | 3.8 | 0.4% | 17,073 |
| 2010 | 18.7 | 1.8% | 16,639 |
| 2011 | 21.3 | 2.1% | 17,160 |
| 2012 | 14.4 | 1.4% | 17,242 |
| 2013 | 18 | 1.8% | 17,346 |
| 2014 | 7.4 | 0.7% | 16,547 |
| 2015 | 22.7 | 2.2% | 15,661 |
| 2016 | 35.4 | 3.5% | 15,178 |
| 2017 | 16.3 | 1.6% | 16,718 |
| 2018 | 26.7 | 2.6% | 15,401 |
| 2019 | 43.6 | 4.3% | 13,111 |
| 2020 | 4.1 | 1.4% | 12,003 |
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 |
|---|---|---|---|---|---|---|---|---|
| GT1 | Natural Gas Fired Combustion Turbine | GT | 18 | 14 | Jun 1969 | Retired Jun 2020 | — | coming soon |
| GT2 | Natural Gas Fired Combustion Turbine | GT | 18 | 14 | Jun 1969 | Retired Jun 2020 | — | coming soon |
| GT3 | Natural Gas Fired Combustion Turbine | GT | 18 | 14 | Jun 1969 | Retired Jun 2020 | — | coming soon |
| GT4 | Natural Gas Fired Combustion Turbine | GT | 18 | 14 | Jun 1969 | Retired Jun 2020 | — | coming soon |
| GT5 | Natural Gas Fired Combustion Turbine | GT | 18 | 14.6 | Jun 1969 | Retired Mar 2020 | — | coming soon |
| GT6 | Natural Gas Fired Combustion Turbine | GT | 18 | 15.6 | Jun 1969 | Retired Mar 2020 | — | coming soon |
| GT7 | Natural Gas Fired Combustion Turbine | GT | 18 | 14.5 | Jun 1969 | Retired Mar 2020 | — | coming soon |
| GT8 | Natural Gas Fired Combustion Turbine | GT | 18 | 16 | Jun 1969 | Retired Mar 2020 | — | coming soon |
Owner / operator
Operator: Constellation Power Source Gen. Ownership shares by in-service nameplate MW (EIA-860 Schedule 4; units not listed there are wholly owned by the operator).
Nearby plants
Within 80 km.
| Presbyterian Senior Living Service | 1 MW | 3 km |
| White Marsh Mall | 1 MW | 6.1 km |
| General Motors Corp at White Marsh MD | retired | 8.1 km |
| CCBC Essex | 1 MW | 8.1 km |
| White Marsh Solar | 2 MW | 9.1 km |
| BTC2 Solar (CSG) | 2 MW | 9.5 km |