NorthWestern Energy Homepage
NWE Contact Bar, in Montana dial 1-888-467-2669, in South Dakota or Nebraska dial 1-800-245-6977

NorthWestern Energy Files to Adjust Propane Supply Rate and Propane Supply Cost Account Balance in Townsend, Montana

May 04, 2015
Butte, Mont. – May 1, 2015 – NorthWestern Energy has filed with the Montana Public Service Commission (MPSC) a request to adjust propane supply costs and the propane supply cost account balance in Townsend, Mont., on an interim basis on June 1, 2015, pending final commission approval.  

Propane supply costs are adjusted on an annual basis based on the contracted market supply price along with any over or under-collection of the previous year’s contract.  NorthWestern Energy does not earn a profit on the supply cost.

If approved, the summer rate, including supply, delivery and service charges, will decrease from $1.91 per therm (or the equivalent of $1.75 per gallon) to $1.12 cents per therm (or the equivalent of $1.03 per gallon) and the winter supply rate will decrease from $2.02 per therm (or the equivalent of $1.86 per gallon) to $1.18 cents per therm (or the equivalent of $1.08 per gallon).

NorthWestern also proposes to amortize and collect approximately $7,404 in previously uncollected supply costs over the next year. If approved, the deferred propane cost amortization rate will decrease to $0.01951 per therm.

The overall cost adjustments translate into a total bill decrease of $23.69 per month during the summer season for a typical residential customer using 30 therms and a decrease of $67.58 per month during the winter heating season for a typical residential customer using 80 therms. The actual decrease will depend on each customer’s usage.

The current delivery and service charges are unaffected by this filing. NorthWestern has about 580 propane customers in Townsend.

Propane costs have decreased nationwide in recent months due to a variety of factors that have affected supply and demand. The new rates will go into effect on June 1, 2015 on an interim basis, if the PSC approves.

Please visit to learn more about simple and effective ways to make your home more energy efficient and about various bill payment and assistance options.

For more news about NorthWestern Energy, follow us on Facebook and on Twitter (NorthWestern_MT). 

About NorthWestern Energy
NorthWestern Energy provides electricity and natural gas in the Upper Midwest and Northwest, serving approximately 692,600 customers in Montana, South Dakota and Nebraska.  More information on NorthWestern Energy is available on the company's website at

Media Contact:
Butch Larcombe
(866) 622-8081

Contact Us | Terms of use | Glossary | PO Terms & Conditions | EEO | ©2016 NorthWestern Energy. All rights reserved.