NorthWestern Energy LLC (MT) Electricity Rate per kWh (2024 EIA Data)

NorthWestern Energy LLC (MT) is an investor-owned electric utility that reports to the U.S. Energy Information Administration under utility number 12825. In 2024 it served 328,125 bundled residential customers in Montana (its largest state of 2) (plus 2 delivery-only residential accounts that buy their energy from a competitive supplier), and its average realised residential price was 14.23 cents per kWh: $398 million of residential revenue divided by 2.80 million MWh of residential sales.

Across the other sectors, NorthWestern Energy LLC (MT)'s 2024 average prices were 13.46 cents for commercial customers (84,523 accounts) and 10.77 cents for industrial customers (2,239 accounts). Industrial customers paid 3.46 cents less per kWh than households, a 24% discount that is typical of high-volume, high-voltage service. Montana allows retail choice, so the customer base splits two ways: 328,125 residential customers took bundled service (energy plus delivery) at 14.23 cents per kWh, while 2 bought their energy from a competitive supplier and paid NorthWestern Energy LLC (MT) only for delivery, which averaged 6.00 cents per kWh for the wires portion.

Within Montana, NorthWestern Energy LLC (MT) ranked number 1 of 15 utilities with bundled or delivery service by residential accounts served (328,127, bundled plus delivery-only) and accounted for 49.13% of the state's residential electricity sales in 2024, measured in MWh sold or delivered rather than in customers. The state-wide average realised residential price in 2024, computed from the same EIA file, was 12.66 cents per kWh, so NorthWestern Energy LLC (MT)'s customers paid 1.57 cents above the Montana average (+12.4%). For context, EIA's latest monthly figure for Montana is 15.14 cents per kWh (June 2026, Electric Power Monthly); that is a different, more recent measure across all utilities and is not directly comparable with a 2024 annual average.

EIA's service-territory file places NorthWestern Energy LLC (MT) in 36 Montana counties: Beaverhead, Big Horn, Blaine, Broadwater, Carbon, Cascade, Chouteau, Deer Lodge, Fergus, Gallatin, Golden Valley, and Granite, and 24 more. It also reports 2024 retail sales in Wyoming (294 residential customers at 12.83 cents). On the grid side it operates in the WECC NERC region, and reported generation, transmission, buying transmission, distribution, and retail marketing as its activities. Balancing authority code: NWMT.

NorthWestern Energy LLC (MT) is not among the utilities included in EIA's preliminary 2025 early release, so the 2024 final data is the most recent figure available for it.

The nearest other utilities in Montana by service-territory centroid are Fergus Electric Coop, Inc (69.4 miles away, 15.52 cents), Flathead Electric Coop Inc (110.8 miles away, 9.67 cents), Yellowstone Valley Elec Co-op (132.5 miles away, 13.35 cents), Missoula Electric Coop, Inc (155.9 miles away, 10.50 cents), and Fall River Rural Elec Coop Inc (168.5 miles away, 11.11 cents).