NorthWestern Energy Electricity Rates
NorthWestern Energy residential customers pay an average of 12.6¢/kWh (EIA-861, 2024, bundled service), or about $113.36 per month — 2% below the South Dakota state average. See what your bill looks like at that rate below.
12.6¢/kWh
EIA-861, 2024, bundled
$113.36
per month, residential
-2%
12.9¢/kWh state avg
What a NorthWestern Energy bill looks like by usage
Monthly cost at NorthWestern Energy's effective 12.6¢/kWh rate vs the South Dakota average of 12.9¢/kWh. U.S. homes average about 863 kWh/month.
| Monthly usage | NorthWestern Energy | SD average |
|---|---|---|
| 500 kWh | $62.80 | $64.30 |
| 750 kWh | $94.20 | $96.45 |
| 1,000 kWh | $125.60 | $128.60 |
| 1,250 kWh | $157.00 | $160.75 |
| 1,500 kWh | $188.40 | $192.90 |
| 2,000 kWh | $251.20 | $257.20 |
Find what drives your NorthWestern Energy bill
Rates and averages explain the price of a kilowatt-hour, not how many you use. A plug-in energy meter logs what one corded 120 V appliance really draws over a week. A whole-home monitor logs every circuit at once, so the biggest loads on your own bill show up by name — its sensors clip on inside the panel, which is work for an electrician if that isn't you.
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Plug-in power meter
P3 International Kill A Watt P4400
Best for: Measuring what one plug-in appliance really uses
Whole-home energy monitor
Emporia Vue 3 Home Energy Monitor (16 circuit sensors)
Best for: Measuring hardwired and 240 V loads, or every circuit at once
EV charging cost on NorthWestern Energy
Rate is pre-filled to NorthWestern Energy's 12.6¢/kWh. Enter your car's battery size.
Frequently asked questions
Other utilities in South Dakota
Think your NorthWestern Energy bill is too high?
Start with our guide to estimating and lowering your electric bill, then find the culprits with the appliance running-cost tables. EV driver on a time-of-use plan? See off-peak EV charging.