Grid connection · Charles County, Maryland, United States
Hughesville 69 kV grid connection (PJM C01-1560)
Hughesville 69 kV grid connection (PJM C01-1560) is a planned grid connection in Charles County, Maryland, United States, with 100 MW of capacity, held by MDHF Battery Storage, LLC.
Facts
Every value links to its source, and to the source's own record where it has one. Licences and last-checked dates are per row.
| Fact | Value | Source |
|---|---|---|
| Location | Charles County (connects at Hughesville 69 kV) | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
| Status | Planned (active, cluster C01 Phase 1) | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
| Holder | MDHF Battery Storage, LLC | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
| Capacity | 100 MW | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
| Technology | Storage (registered as Storage) | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
| Grid operator | PJM Interconnection, L.L.C. | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
| Queue date | 27 Apr 2026 | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
| Connection date | 1 Jun 2029 (proposed) | PJM New Services Queue · Free reuse · checked 24 Oct 2026 |
Research on this grid connection and its holder.Who holds it up to the parent company, the project behind it and its connection date, and an introduction to the holder.
Request researchHow it compares
Hughesville 69 kV grid connection (PJM C01-1560) is the 44th-largest of 78 grid connections in Maryland and the 2,448th-largest of 3,711 in the United States by capacity; its 100 MW is <0.1% of the 833,233 MW we hold for the United States. Ranks and totals cover the grid connections in our data that report their capacity, not every one in existence.
| Within | Rank | Total | Share |
|---|---|---|---|
| Maryland | 44th of 78 | 15,314 MW | 0.65% |
| United States | 2,448th of 3,711 | 833,233 MW | <0.1% |
| All grid connections in our data | 2,861st of 7,616 | 1,281,251 MW | <0.1% |
Timeline
Dated facts about this grid connection from its sources, oldest first.
- Entered the connection queue
- Due to connect
Holder, grid operator and place
More from MDHF Battery Storage, LLC
Other grid connections in Maryland
- Chalk Point 230 kV grid connection (PJM AH1-552 - moved to TC2)670 MW
- Chalk Point 230 kV grid connection (PJM AH1-552)670 MW
- Brandywine 230 kV grid connection (PJM C01-1505)620 MW
- Cheltenham 500 kV grid connection (PJM C01-1494)618 MW
- Perryman 115 kV grid connection (PJM C01-1579)555 MW
- Black Oak - Hatfield 500 kV grid connection (PJM C01-1333)500 MW
- Conastone 500 kV grid connection (PJM AH1-725 - moved to TC2)500 MW
- Conastone 500 kV grid connection (PJM AH1-725)500 MW
Data on this page
- California ISO. Checked 2026-10-24. CAISO queue report, CAISO Privacy and Terms of Use.
- SP Electricity North West, via Northern Powergrid Open Data. SP Electricity North West open data portal, CC BY 4.0.
- ERCOT GIS report. ERCOT GIS report, ERCOT Terms of Use.
- Supported by National Energy SO Open Data. NESO TEC Register, NESO Open Data Licence v1.0.
- Supported by Northern Powergrid Open Data. Northern Powergrid open data portal, Northern Powergrid Open Data Licence v1.0.
- NYISO interconnection queue. NYISO interconnection queue, Free reuse.
- PJM New Services Queue. PJM New Services Queue, Free reuse.
- SP Energy Networks, via Northern Powergrid Open Data. SP Energy Networks open data portal, CC BY 4.0.
- SSEN Distribution. SSEN Distribution data portal, CC BY 4.0.