EIA data through August 2026 · updated 2026-10-29

NorthWestern Energy LLC (MT) electricity rates

NorthWestern Energy LLC (MT) (investor owned) residential customers paid about 16.4¢ per kWh (Jan–Aug 2026) — an average bill of $101 for 711 kWh a month.

Avg. home price16.4¢per kWh

Residential customers328,127MT, 2024

Avg. monthly use711kWh

Commercial13.1¢per kWh

Industrial1.8¢per kWh

Montana has retail electricity choice. Many households can buy electricity supply from a competing supplier, while the local utility still delivers it. The averages here combine utility and supplier sales as reported to the EIA; your state’s public utility commission lists licensed suppliers.

What a month costs with NorthWestern Energy LLC (MT)

500 kWh / month$82

700 kWh / month · avg. use$115

900 kWh / month$147

1,200 kWh / month$196

Monthly cost at the average price of 16.4¢ per kWh. Real bills add or subtract fixed charges, tiers, time-of-use and fuel adjustments.

Price trend

Montana averageU.S. averageNorthWestern Energy LLC (MT)

Aug 202615.6¢per kWh

vs. 1 year ago+9%14.3¢

vs. 5 years ago+34.1%11.6¢

Record high15.6¢Aug 2026

Avg. home bill$122784 kWh, Aug

EIA forecast, Mountain14.7¢Dec 2027

Hover or tap the chart for exact monthly values. Source: EIA-861M (monthly, latest months preliminary); forecast: EIA Short-Term Energy Outlook (October 2026) for the Mountain region, which includes Arizona, Colorado, Idaho, Montana, Nevada, New Mexico, Utah, Wyoming.

By state

State	Home price (2024)	Avg. bill	Customers
Montana	14.2¢	$101	328,127
Wyoming	12.8¢	$94	294

ZIP codes served

59001Absarokee 59002Acton 59004Ashland 59006Ballantine 59007Bearcreek 59008Belfry 59011Big Timber 59012Birney 59013Boyd 59014Bridger 59015Broadview 59016Busby 59018Clyde Park 59019Columbus 59020Cooke City 59022Crow Agency 59024Custer 59025Decker 59026Edgar 59027Emigrant 59028Fishtail 59029Fromberg 59030Gardiner 59031Garryowen 59032Grass Range 59033Greycliff 59034Hardin 59035Fort Smith 59036Harlowton 59037Huntley 59039Ingomar 59041Joliet 59043Lame Deer 59044Laurel 59046Lavina 59047Livingston 59050Lodge Grass 59052Mc Leod 59053Martinsdale 59054Melstone 59055Melville 59057Molt 59059Musselshell 59061Nye 59062Otter 59063Park City 59064Pompeys Pillar 59065Pray 59066Pryor 59067Rapelje 59068Red Lodge 59069Reed Point 59070Roberts 59071Roscoe 59072Roundup 59073Roundup 59074Ryegate 59075Saint Xavier 59078Shawmut 59079Shepherd 59081Silver Gate 59082Springdale 59083Sumatra 59085Two Dot 59086Wilsall 59088Worden 59089Wyola 59101Billings 59102Billings 59103Billings 59104Billings 59105Billings 59106Billings 59107Billings 59108Billings 59111Billings 59112Billings 59114Billings 59115Billings 59116Billings 59117Billings 59225Frazer 59230Glasgow 59231Saint Marie 59240Glentana 59241Hinsdale 59244Larslan 59248Nashua 59250Opheim 59260Richland 59261Saco 59273Vandalia 59323Colstrip 59327Forsyth 59333Hathaway 59347Rosebud 59401Great Falls 59403Great Falls 59404Great Falls 59405Great Falls 59406Great Falls 59410Augusta 59412Belt 59414Black Eagle 59416Brady 59418Buffalo 59419Bynum 59420Carter 59421Cascade 59422Choteau 59424Coffee Creek 59425Conrad 59427Cut Bank 59430Denton 59432Dupuyer 59433Dutton 59436Fairfield 59440Floweree 59441Forest Grove 59442Fort Benton 59443Fort Shaw 59446Geraldine 59447Geyser 59448Heart Butte 59450Highwood 59451Hilger 59452Hobson 59453Judith Gap 59456Ledger 59457Lewistown 59460Loma 59461Lothair 59462Moccasin 59463Monarch 59464Moore 59465Neihart 59467Pendroy 59468Power 59469Raynesford 59471Roy 59472Sand Coulee 59477Simms 59479Stanford 59480Stockett 59483Sun River 59485Ulm 59486Valier 59487Vaughn 59489Winifred 59501Havre

and 162 more.

Averages, not a quote. Prices here are what each utility’s residential customers paid on average (revenue ÷ kWh sold, fixed charges included), as reported to the U.S. Energy Information Administration. Your own rate depends on your plan, season and usage — check your bill or your utility’s tariff.

Questions

What is NorthWestern Energy LLC (MT)’s electricity rate?

About 16.4¢ per kWh for residential customers (Jan–Aug 2026 average, EIA-861M), including fixed charges spread over usage.

What is the average NorthWestern Energy LLC (MT) electric bill?

$101 a month in 2024, for an average of 711 kWh (EIA-861).

Is NorthWestern Energy LLC (MT) cheaper than the Montana average?

No: 16.4¢ versus the Montana average of 15.6¢ (Aug 2026).