What is the PJM capacity charge in Maryland?
2,210,643 of 2,446,164 homes (90%) sit in 4 mapped utilities; the main zone is Baltimore Gas and Electric. Baltimore Gas and Electric is the largest at 55% of mapped homes.
Maryland utilities and their PJM zones
| Utility | Zone | Maryland homes | Share | Maryland kWh/mo | 1 kW cents/kWh 2026/27 | 2024/25 $ | 2026/27 $ |
|---|---|---|---|---|---|---|---|
| Baltimore Gas and Electric | BGE | 1,214,100 | 54.9% | 869 | 1.15 | $73.00 | $329.17 |
| Pepco | PEPCO | 553,607 | 25.0% | 830 | 1.21 | $49.49 | $329.17 |
| Potomac Edison | APS | 256,568 | 11.6% | 1,086 | 0.92 | $28.92 | $329.17 |
| Delmarva Power | DPL | 186,368 | 8.4% | 943 | 1.06 | $164.37 | $329.17 |
BGE against the RTO price
2021/22: $200.30 here, $140.00 RTO-wide; 2022/23: $126.50 here, $50.00 RTO-wide; 2023/24: $69.95 here, $34.13 RTO-wide; 2024/25: $73.00 here, $28.92 RTO-wide; 2025/26: $466.35 here, $269.92 RTO-wide.
Maryland per kWh
BGE zone, Maryland: 1 kW at $329.17 x 365 / 1,000 = $120.15 a year, against $26.64 for 2024/25.
Maryland homes average 917 kWh a month (EIA-861, 2024). 1 kW per kWh: 0.24 cents at 2024/25, 1.09 at 2026/27. Maryland average price 2025: 19.48 cents.
5 Maryland utilities serve 235,521 homes outside our map. Largest: Southern Maryland Elec Coop Inc, cooperative, 160,882 homes, 14.8 cents; Choptank Electric Cooperative, Inc, cooperative, 50,697 homes, 16.5 cents; Hagerstown Light Department, municipal, 15,099 homes, 7.8 cents; Easton Utilities Comm, municipal, 8,590 homes, 13.1 cents.
investor-owned 90% of homes at 18.0 cents and 893 kWh a month; cooperative 9% of homes at 15.2 cents and 1,138 kWh a month; municipal 1% of homes at 9.8 cents and 960 kWh a month. Of 24 counties, 29% are nonmetro.
Maryland against other PJM states
Maryland is #9 of 10 on the price ratio, behind Pennsylvania (6.1x) and ahead of Delaware (2.0x).
Neighbors with a page: Virginia 11.4x, West Virginia 11.4x, District of Columbia 6.7x, Pennsylvania 6.1x, Delaware 2.0x.
Work out a Maryland capacity cost
- Loading Maryland prices.
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Sources
4 Maryland utilities from EIA-861 2024 and the PJM files listed on the hub.
Questions
Which PJM zone is my Maryland utility in?
Baltimore Gas and Electric: BGE; Pepco: PEPCO; Potomac Edison: APS; Delmarva Power: DPL.
How many Maryland homes does the zone map cover?
2,210,643 of 2,446,164 (90%); 235,521 are served by utilities we leave unmapped.