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

For Montana Customers

2019_MT_electric_generation_chartNorthWestern Energy’s electricity supply mix for our Montana customers includes more than 60% clean energy made up of 44% carbon-free hydro and slightly more than 17% renewables, mostly wind generation.

Our Montana electric customers can "green up" their electricity usage with green power. You don’t have to install anything or make a big investment. The E+ Green Program gives you a way to reduce your electricity-based carbon footprint and supports the development of new renewable generation.

$1.25 extra a month on your electric bill adds 100 kilowatt-hours of renewable benefits of wind, solar and biomass from the Northwest, Montana or Wyoming*.  You choose how much to buy.

For example, an average NorthWestern Energy residential electric customer in Montana uses about 750 kWh a month.
If an average customer wants to add 40% more carbon-free electricity, they would buy 3 blocks of E+ Green for an extra $3.75 a month.
If an average customer wants to add 100% renewable resources, they would buy 8 blocks for an additional $10 a month.

Here's how to start! Choose how much E+ Green you want to buy. Enter your average monthly electricity usage below. You can find your monthly usage in My Energy Account. Next, decide what percentage of your usage you want to make greener. The calculator will show you how much the E+ Green program will add to your monthly bill.


 kWh  %

Unsure as to how much you want to add, please call us at 888-467-2669 and ask about E+ Green! Or contact us here.

Your E+ Green charges will be added to your NorthWestern Energy bill and you may change the amount you buy at any time. And unlike other clean energy providers, your account information stays right here with NorthWestern Energy. Sign up here!

Note: The E+ Green Program is offered to Montana electric customers as a regulated program as required by Montana law.

* NorthWestern Energy supports the E+ Green program with renewable energy certificates (REC) purchased from the Bonneville Environmental Foundation from resources in the Northwest, Montana as available, or WY.


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