Maryland electricity rates
49 residential tariffs from 11 utilities. Across the 27 filed since 2020, the median costs $0.1528 per kWh at 1,000 kWh a month once fixed charges are included — the cheapest $0.0638, the most expensive $0.2444.
$0.1528median $/kWh
11utilities
49tariffs on file
76%time-of-use
55%filed since 2020
Rate structures in Maryland
| Structure | Tariffs |
|---|---|
| Time-of-use | 21 |
| Time-of-use + tiered | 16 |
| Flat | 9 |
| Tiered | 3 |
Lowest effective rates at 1,000 kWh/month
Ranked across the 27 tariffs filed since 2020 — 55% of those on file here. Older filings are excluded because they are systematically below what utilities now charge; see methodology. Effective rate includes fixed charges, and availability restrictions may apply.
| Utility | Tariff | Structure | Filed | $/kWh | Annual |
|---|---|---|---|---|---|
| Delmarva Power | Residential Space Heating Service | Tiered | 2025 | $0.0638 | $765.94 |
| Delmarva Power | Residential TOU Non-Demand Service | Time-of-use | 2025 | $0.0642 | $769.87 |
| Potomac Electric Power Co | Residential - Schedule R | Time-of-use + tiered | 2025 | $0.0651 | $781.37 |
| Delmarva Power | Residential Service | Time-of-use + tiered | 2025 | $0.0668 | $801.79 |
| Delmarva Power (Maryland) | RESIDENTIAL TIME OF USE PILOT PROGRAM "R-TOU-P" | Time-of-use | 2023 | $0.0670 | $804.25 |
| Baltimore Gas & Electric Co | Residential Service (Schedule R) | Time-of-use | 2026 | $0.0727 | $872.64 |
| Baltimore Gas & Electric Co | Residential Electric Vehicle Time-of-Use (Schedule EV) | Time-of-use | 2026 | $0.0727 | $872.64 |
| Baltimore Gas & Electric Co | Residential Optional Time of Use (Schedule RL) | Time-of-use | 2026 | $0.0744 | $893.28 |
| Southern Maryland Elec Coop Inc | Residential Service | Time-of-use | 2025 | $0.0747 | $896.77 |
| Potomac Electric Power Co | Residential Apartments-Master Meter-Schedule MMA | Flat | 2025 | $0.0753 | $903.84 |