Chesapeake Beach BESS
Battery storage project in Calvert County, Maryland. 1.1 MW of nameplate capacity across 1 generator, operated by Chesapeake Beach BESS LLC.
Also known as EIA plant 69128
Analyst: free account, 1 question a day.
Key facts
- Capacity
- 1.1 MWNameplate
- Generators
- 1 operatingEIA-860M, August 2026
- Operating since
- January 2023First generator online
- Operator
- Chesapeake Beach BESS LLCEIA operator ID 67258
- Grid
- PJMBalancing authority PJM
- Price nodes
- None linkedNo verified ISO node
- Location
- Calvert County, MD38.6499, −76.5302
- EIA plant ID
- 69128EIA plant page
Data as of EIA-860M August 2026 (published 2026-09-24). Capacity is nameplate, not live output.
How much power Chesapeake Beach BESS produces
Free · EIA-923Net generation, 2025
−182 MWh
−182 MWh, final
Battery discharge, 2025
593 MWh
Charge 775 MWh
January to July 2026
Not reported
Provisional. 0 of 7 months reported
| Year | Net generation, MWh | Capacity factor | Months reported |
|---|---|---|---|
| 2000 | Not reported | Not reported | 0 of 12 |
| 2001 | Not reported | Not reported | 0 of 12 |
| 2002 | Not reported | Not reported | 0 of 12 |
| 2003 | Not reported | Not reported | 0 of 12 |
| 2004 | Not reported | Not reported | 0 of 12 |
| 2005 | Not reported | Not reported | 0 of 12 |
| 2006 | Not reported | Not reported | 0 of 12 |
| 2007 | Not reported | Not reported | 0 of 12 |
| 2008 | Not reported | Not reported | 0 of 12 |
| 2009 | Not reported | Not reported | 0 of 12 |
| 2010 | Not reported | Not reported | 0 of 12 |
| 2011 | Not reported | Not reported | 0 of 12 |
| 2012 | Not reported | Not reported | 0 of 12 |
| 2013 | Not reported | Not reported | 0 of 12 |
| 2014 | Not reported | Not reported | 0 of 12 |
| 2015 | Not reported | Not reported | 0 of 12 |
| 2016 | Not reported | Not reported | 0 of 12 |
| 2017 | Not reported | Not reported | 0 of 12 |
| 2018 | Not reported | Not reported | 0 of 12 |
| 2019 | Not reported | Not reported | 0 of 12 |
| 2020 | Not reported | Not reported | 0 of 12 |
| 2021 | Not reported | Not reported | 0 of 12 |
| 2022 | Not reported | Not reported | 0 of 12 |
| 2023 | Not reported | Not reported | 0 of 12 |
| 2024 | Not reported | Not reported | 0 of 12 |
| 2025 | −182 | Not reported | 12 of 12 |
| 2026 (provisional, partial year) | Not reported | Not reported | 0 of 7 |
* 2026 covers January to July and is provisional. Battery plants can report negative net generation, when charging uses more energy than they discharge.
Power prices and basis
Free accountNo verified ISO price node is linked to this plant, or its price history could not load.
Emissions
Free · EPA CAMPDNo EPA emissions units are linked to this plant.
Water use
Free · EIA-923 cooling, USGSNo EIA cooling-water record for this plant in 2024. Plants without steam cooling, such as wind, solar and batteries, do not report cooling water.
Generators
Free · EIA-860M| Generator | Technology | Nameplate MW | Online since |
|---|---|---|---|
| 22620 | Batteries | 1.1 | January 2023 |
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 Chesapeake Beach BESS LLC as the operator, which is not always the owner.
Modeled data
ProPro adds modeled values for this plant. Everything above stays free.
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Questions about Chesapeake Beach BESS
How much power does Chesapeake Beach BESS produce?
Chesapeake Beach BESS reported −182 MWh (−182 MWh) of net generation in 2025.
Where is Chesapeake Beach BESS?
Chesapeake Beach BESS is in Calvert County, Maryland, at 38.6499, −76.5303. It is in the PJM Interconnection, LLC balancing area (PJM).
Who operates Chesapeake Beach BESS?
EIA-860M for August 2026 lists Chesapeake Beach BESS LLC as the operator (EIA operator ID 67258). The operator is not always the owner.
When did Chesapeake Beach BESS start operating?
Its first generator began operating in January 2023, according to EIA-860M.
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)
Page updated 2026-10-04 from the InfraMap data build. Methodology · Data sources · EIA plant page