Thurmont Municipal Light Co
Municipal electric utility · Maryland · #1,896 of 3,199 U.S. utilities by customers · EIA utility #18901
Thurmont Municipal Light Co is a municipal electric utility serving 2,914 customers in Maryland. In 2025 it sold 72.9 gigawatt-hours of electricity for $7.72M in revenue, an average realized rate of 10.60¢ per kWh across all customer classes and — per kWh for residential customers. Its reported service territory covers 1 counties.
Customers, sales and rates by customer class (2025)
| Class | Customers | Sales (GWh) | Revenue | Avg realized rate | Share of sales |
|---|---|---|---|---|---|
| Total | 2,914 | 72.9 | $7.72M | 10.60¢ |
Average realized rate = revenue divided by sales as reported on EIA Form 861. It blends fixed charges, demand charges and riders into one per-kWh figure; it is not the utility's tariff rate. Estimated residential bill assumes the average residential customer's actual 2025 usage (— kWh/month).
This utility files the EIA-861S short form, which reports totals only - no breakdown by customer class is published for it.
Five-year trend
| Year | Customers | Sales (GWh) | Revenue | Residential rate |
|---|---|---|---|---|
| 2021 | 2,874 | 73.1 | $6.20M | — |
| 2022 | 2,879 | 72.8 | $5.91M | — |
| 2023 | 2,880 | 71.0 | $5.60M | — |
| 2024 | 2,892 | 72.1 | $6.27M | — |
| 2025 | 2,914 | 72.9 | $7.72M | — |
Meters & rooftop solar (2025)
Smart (AMI) meters: 0.0% of 2,869 meters
Counties served
Frederick, MD
Other large utilities in Maryland
- Baltimore Gas & Electric Co - 1,221,264 customers, residential 20.19¢
- Potomac Electric Power Co - 872,449 customers, residential 21.47¢
- The Potomac Edison Company - 435,988 customers, residential 14.55¢
- Southern Maryland Elec Coop Inc - 179,005 customers, residential 16.43¢
- Choptank Electric Cooperative, Inc - 57,450 customers, residential 17.11¢
- Hagerstown Light Department - 17,780 customers, residential 11.23¢
- Easton Utilities Comm - 11,316 customers, residential 15.18¢
- SFE Energy Maryland, Inc. - 4,330 customers, residential 13.35¢
All Maryland utilities and rates
Source: U.S. Energy Information Administration, Form EIA-861 2025 (filed by the utility; figures as published). Utility #18901 in the EIA frame.