Edge Moor
Natural gas power plant in New Castle County, Delaware. 697.8 MW of nameplate capacity across 3 generators, operated by Calpine Mid-Atlantic Generation LLC.
Also known as Edge Moor Power Plant · EIA plant 593
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Key facts
- Capacity
- 697.8 MWNameplate
- Generators
- 3 operatingEIA-860M, August 2026
- Operating since
- December 1954First generator online
- Operator
- Calpine Mid-Atlantic Generation LLCEIA operator ID 56609
- Grid
- PJMBalancing authority PJM
- Price nodes
- 3 PJM nodesResource nodes with prices
- Location
- New Castle County, DE39.7389, −75.5038
- EIA plant ID
- 593EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Edge Moor produces
Free · EIA-923Net generation, 2025
391 GWh
391,344 MWh, final
Capacity factor, 2025
6.3%
2024: 5.3%
January to July 2026
Not reported
Provisional. 0 of 7 months reported
Range, 2016 to 2025
137.8–865.2
GWh a year. Low 2019, high 2016
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | 1,765,719 | Not reported | 12 of 12 |
| 2001 | 2,598,467 | Not reported | 12 of 12 |
| 2002 | 1,911,750 | Not reported | 12 of 12 |
| 2003 | 2,400,037 | Not reported | 12 of 12 |
| 2004 | 1,828,434 | Not reported | 12 of 12 |
| 2005 | 1,762,130 | Not reported | 12 of 12 |
| 2006 | 1,538,808 | Not reported | 12 of 12 |
| 2007 | 1,815,336 | Not reported | 12 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | 582,120 | Not reported | 12 of 12 |
| 2010 | 88,555 | 5.6% | 3 of 12 |
| 2011 | 631,164 | Not reported | 11 of 12 |
| 2012 | 1,075,559 | 17.2% | 12 of 12 |
| 2013 | 395,562 | 6.4% | 12 of 12 |
| 2014 | 170,398 | 8.3% | 4 of 12 |
| 2015 | 165,262 | 5.3% | 6 of 12 |
| 2016 | 865,181 | 13.9% | 12 of 12 |
| 2017 | 232,146 | 3.7% | 12 of 12 |
| 2018 | 312,965 | 5.0% | 12 of 12 |
| 2019 | 137,839 | 2.2% | 12 of 12 |
| 2020 | 175,479 | 2.8% | 12 of 12 |
| 2021 | 292,456 | 4.7% | 12 of 12 |
| 2022 | 339,937 | 5.5% | 12 of 12 |
| 2023 | 222,294 | 3.6% | 12 of 12 |
| 2024 | 327,562 | 5.3% | 12 of 12 |
| 2025 | 391,344 | 6.3% | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Capacity factor is net generation divided by nameplate capacity times the hours of each reported month.
Power prices and basis
Free account · PJMEmissions
Free · EPA CAMPDCO₂, 2025
Not reported
US short tons. 2024: Not reported
SO₂, 2025
Not reported
US short tons
NOx, 2025
164
US short tons
3 of 4 EPA units reported CO₂ in 2025 (10, 3, 4, 5), matched to EIA plant 593 through the EPA–EIA crosswalk.
Water use
Free · EIA-923 cooling, USGSWithdrawal, 2024
31,891
million gallons
Consumption, 2024
110
million gallons
Source
Delaware River
Surface, Fresh. Once-through
Watershed stress
Very low/none · 0.138
USGS SUI, HUC12 Shellpot Creek-Frontal Delaware River
36 of 36 cooling months report withdrawal. SUI of the source river HUC12 within 3 km. Blank volumes are unreported, not zero.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 3 | Natural Gas Steam Turbine | 75.0 | December 1954 |
| 4 | Natural Gas Steam Turbine | 176.8 | April 1966 |
| 5 | Natural Gas Steam Turbine | 446.0 | August 1973 |
Ownership and offtake
ProOwnership and offtake are part of Pro
Owners and their shares, parent companies, and power purchase agreements with their buyers. EIA-860M lists Calpine Mid-Atlantic Generation LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
Generation potential vs reported
Monthly potential at seasonal net capability, next to EIA-923 output. Shows how much of the plant's capability was used.
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Power plants near Edge Moor
More plants operated by Calpine Mid-Atlantic Generation LLC
Questions about Edge Moor
How much power does Edge Moor produce?
Edge Moor reported 391,344 MWh (391 GWh) of net generation in 2025, a 6.3% capacity factor on 697.8 MW of nameplate capacity.
Where is Edge Moor?
Edge Moor is in New Castle County, Delaware, at 39.7389, −75.5038. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Edge Moor?
EIA-860M for August 2026 lists Calpine Mid-Atlantic Generation LLC as the operator (EIA operator ID 56609). The operator is not always the owner.
When did Edge Moor start operating?
Its first generator began operating in December 1954, according to EIA-860M.
Does InfraMap have power prices for Edge Moor?
Yes. InfraMap has PJM day-ahead and real-time prices at 3 price nodes linked to Edge Moor, with the hub price and node-to-hub basis. Prices are free with an InfraMap account; pricing node names are part of InfraMap Pro.
Sources
- EIA-860 2025 (final) and EIA-860M August 2026: plant, generators, capacity, operator and location
- EIA-923 monthly net generation, 2000 to July 2026 (2026 provisional)
- EPA CAMPD annual emissions through the EPA–EIA crosswalk, 1995 to 2025
- PJM day-ahead and real-time prices; node and hub assignments as of 2026-10-05
- EIA-923 cooling water 2024 and the USGS surface water supply and use index, Water years 2010-2020 (Oct 2009 to Sep 2020), mean of monthly values
- Plant names from OpenStreetMap, © OpenStreetMap contributors (ODbL)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page