# Key

PJM Natural Gas Fired Combined Cycle · https://askthegrid.com/assets/facilities/key

Key is a natural gas-fired power facility with 830.6 MW of EIA-reported nameplate capacity in Prince Georges County, Maryland, registered as EIA Plant ID 60302. Parkway Generation, LLC is the public owner or developer; PSEG Keys Energy Center, LLC is the registered plant entity or operator. The plant's generating configuration is natural-gas-fired combined-cycle plant with two gas-fired turbines and one steam turbine and 3 generating units.

## Key facts

- Technology: Natural Gas Fired Combined Cycle
- Power capacity: 830.6 MW
- Operating status: operating
- Retirement: 2026-07

## Grid and market context

- ISO/RTO: PJM
- Balancing authority: PJM Interconnection, LLC (PJM)
- Substation: On-site 500 kV substation/switchyard (name not specified)
- Point of interconnection: On-site 500 kV substation/switchyard (name not specified)
- Transmission owner: Potomac Electric Power Company (Pepco)
- Interconnection voltage: 500 kV

## Source-backed facts

- Owner name: Parkway Generation Keys Energy Center, LLC — Source · confidence: high
- Owner name: Parkway Generation Keys Energy Center, LLC — Case Search — DMS Portal — Maryland PSC · confidence: high
- Description: Keys Energy Center, listed by EIA as Key, is an operating natural-gas-fired combined-cycle generating facility at 10322 North Keys Road in Brandywine, Prince George's County, Maryland. EIA plant records report 830.6 MW of nameplate capacity, with generator IDs 10, 11, and 12, and an initial operating date of July 2018. The current legal owner is Parkway Generation Keys Energy Center, LLC, and Consolidated Asset Management Services operates the plant for the Parkway Generation portfolio. — Source · confidence: medium
- Identifiers.0: {"value":"60302","system":"EIA plant / ORIS code"} — Source · confidence: medium
- Identifiers.9: {"value":"9297","system":"Maryland PSC CPCN case"} — Case Search — DMS Portal — Maryland PSC · confidence: high
- Identifiers.10: {"value":"033-2737","system":"Maryland MDE facility ID"} — Source · confidence: high
- Identifiers.11: {"value":"24-033-2737","system":"Maryland MDE Part 70 permit"} — Source · confidence: high
- Parties.0: {"relationship":"Current legal owner","name":"Parkway Generation Keys Energy Center, LLC","official_url":null} — Source · confidence: high
- Parties.8: {"relationship":"Engineering, procurement and construction contractor","name":"SNC-Lavalin Constructors Inc.","official_url":null} — Public Service Enterprise Group Inc - PSEG Power Acquires Maryland Combined-Cycle Power Plant Project · confidence: high
- Parties.9: {"relationship":"Major equipment OEM","name":"Siemens","official_url":"https://www.siemens-energy.com/"} — Siemens Awarded Power Plant Components For Keys Energy Center In Maryland USA · confidence: high
- Parties.11: {"relationship":"Acquisition financial advisor","name":"Morgan Stanley","official_url":"https://www.morganstanley.com/"} — ArcLight Closes Acquisition of 4.8 GW Power Generation Portfolio from PSEG · confidence: high
- Product url: https://www.siemens-energy.com/global/en/home/products-services/product/sgt6-5000f.html — SGT6-5000F Heavy-duty gas turbine (60 Hz) · confidence: high
- Product family: Siemens SGT6-5000F, SST-5000, and SGen-1000A equipment package — Utility steam turbines · confidence: medium
- Commercial parties.1: {"relationship":"Portfolio manager and sponsor platform","name":"Alpha Generation, LLC","detail":"Formed by an ArcLight affiliate to oversee strategic, commercial, and operational activities for ArcLight’s power infrastructure portfolio, including Parkway Generation.","official_url":"https://www.alphagen.com/"} — ArcLight Creates AlphaGen to Manage One of the Largest Power Infrastructure Portfolios in the United States - Alpha Generation · confidence: high
- Commercial parties.8: {"relationship":"Engineering, procurement and construction contractor","name":"SNC-Lavalin Constructors Inc.","detail":"Designated by PSEG as the EPC contractor for the combined-cycle plant.","official_url":null} — Public Service Enterprise Group Inc - PSEG Power Acquires Maryland Combined-Cycle Power Plant Project · confidence: high
- Commercial parties.9: {"relationship":"Major equipment supplier","name":"Siemens","detail":"Supplied the Siemens F-Class combustion-turbine equipment used at Keys Energy Center.","official_url":"https://www.siemens-energy.com/"} — Alpha Generation | Reliable Energy Now And Always · confidence: high
- Commercial parties.11: {"relationship":"Acquisition financial advisor","name":"Morgan Stanley","detail":"Served as exclusive financial advisor to ArcLight for the 2022 Parkway Generation portfolio acquisition.","official_url":"https://www.morganstanley.com/"} — ArcLight Closes Acquisition of 4.8 GW Power Generation Portfolio from PSEG · confidence: high
- Timeline.2: {"event":"Construction and site preparation","date":"2015-11","detail":"Construction was scheduled to begin in 2015; site-preparation work was reported as starting in November 2015. SNC-Lavalin Constructors was the designated EPC contractor."} — PSEG Keys Energy Center, Maryland · confidence: high
- Timeline.5: {"event":"AlphaGen formation and Parkway oversight","date":"2024-01-10","detail":"ArcLight announced the formation of Alpha Generation, LLC to oversee strategic, commercial, and operational activities for its power infrastructure portfolio, including Parkway Generation and Keys."} — ArcLight Creates AlphaGen to Manage One of the Largest Power Infrastructure Portfolios in the United States - Alpha Generation · confidence: high
- Quality notes.1: The plant record reports operating status and no completed uprate or derate. A CAMS newsletter refers to operations beginning in 2019, but the Maryland permit and plant records identify commercial operation in 2018, with July 2018 used for the timeline. — AIR AND RADIATION ADMINISTRATION DRAFT TITLE V - PART 70 OPERATING PERMIT CKET # 24-033-2737 DO : Parkway Generation Keys · confidence: medium
- Substation: On-site 500 kV substation/switchyard (name not specified) — PSEG Keys Energy Center Maryland · confidence: medium
- Status date: 2026-04-28 — Alpha Generation Announces 10-Year Power Supply Agreement with SMECO backed by Keys Energy Center · confidence: medium

## Sources

- [ArcLight Closes Acquisition of 4.8 GW Power Generation Portfolio from PSEG](https://www.prnewswire.com/news-releases/arclight-closes-acquisition-of-4-8-gw-power-generation-portfolio-from-pseg-301485739.html) — prnewswire.com · tier other
- [AIR AND RADIATION ADMINISTRATION DRAFT TITLE V - PART 70 OPERATING PERMIT CKET # 24-033-2737 DO : Parkway Generation Keys](https://mde.maryland.gov/programs/permits/AirManagementPermits/Documents/Public-Review/new%20Title%20V%20public%20review/PSEG%20Keys%20Docket%202.pdf) — mde.maryland.gov · tier regulatory
- [Case Search — DMS Portal — Maryland PSC](https://webpscxb.pscmaryland.com/DMS/case/9297) — webpscxb.pscmaryland.com · tier other
- [Public Service Enterprise Group Inc - PSEG Power Acquires Maryland Combined-Cycle Power Plant Project](https://investor.pseg.com/investor-news-and-events/financial-news/financial-news-details/2015/PSEG-Power-Acquires-Maryland-Combined-Cycle-Power-Plant-Project/default.aspx) — investor.pseg.com · tier other
- [Siemens Awarded Power Plant Components For Keys Energy Center In Maryland USA](https://www.poweronline.com/doc/siemens-awarded-power-plant-maryland-usa-0001) — poweronline.com · tier other
- [PSEG Keys Energy Center, Maryland](https://www.power-technology.com/projects/pseg-keys-energy-center-maryland/) — power-technology.com · tier other
- [Combined Cycle Power Plants (CCPP)](https://www.siemens-energy.com/global/en/home/products-services/product/combined-cycle-power-plants.html) — siemens-energy.com · tier other
- [SGT6-5000F Heavy-duty gas turbine (60 Hz)](https://www.siemens-energy.com/global/en/home/products-services/product/sgt6-5000f.html) — siemens-energy.com · tier other
- [Utility steam turbines](https://www.siemens-energy.com/global/en/home/products-services/product/utility-steam-turbines.html) — siemens-energy.com · tier other
- [ArcLight Creates AlphaGen to Manage One of the Largest Power Infrastructure Portfolios in the United States - Alpha Generation](https://www.alphagen.com/newsroom/press-releases/arclight-creates-alphagen-to-manage-one-of-the-largest-power-infrastructure-portfolios-in-the-united-states/) — alphagen.com · tier other
- [Alpha Generation | Reliable Energy Now And Always](https://www.alphagen.com/) — alphagen.com · tier other
- [PSEG Keys Energy Center Maryland](https://infra.taiyo.ai/all_public/details/projects/pseg-keys-energy-center-maryland?index=dev_dev_projects_power_technology_070082023&id=nwGn_YkBtAQj3jhAAvdc) — infra.taiyo.ai · tier other
- [Alpha Generation Announces 10-Year Power Supply Agreement with SMECO backed by Keys Energy Center](https://www.prnewswire.com/news-releases/alpha-generation-announces-10-year-power-supply-agreement-with-smeco-backed-by-keys-energy-center-302755065.html) — prnewswire.com · tier other

## Data quality

- Published capacity figures vary by rating convention: plant-record generator capacities total 830.6 MW nameplate, while the Maryland permit cites 755 MW and CAMS cites 761 MW; these figures refer to the same Keys Energy Center. The plant record reports operating status and no completed uprate or derate.

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Source: Ask the Grid — https://askthegrid.com/