NorthWestern Energy - (SD) Rates: Average Bill & Price per kWh
Residential rates for NorthWestern Energy - (SD) and how they compare to the South Dakota average — 2024 EIA-861 annual data.
Residential customers of NorthWestern Energy - (SD) average $113.36/month at 12.56¢/kWh — below the South Dakota average of $133.30.
Where NorthWestern Energy - (SD) rates are heading
Annual residential figures from Form EIA-861, 2019–2024.
| Year | Rate | Avg bill | Res. customers |
|---|---|---|---|
| 2019 | 10.61¢/kWh | $102.83/mo | 50,615 |
| 2020 | 11.4¢/kWh | $109.43/mo | 50,646 |
| 2021 | 11.45¢/kWh | $107.32/mo | 50,805 |
| 2022 | 11.71¢/kWh | $113.91/mo | 51,069 |
| 2023 | 11.26¢/kWh | $110.36/mo | 51,261 |
| 2024 | 12.56¢/kWh | $113.36/mo | 51,467 |
Rate context in South Dakota
Statewide residential price trend (12 months) — context for NorthWestern Energy - (SD)'s 2024 annual figure.
NorthWestern Energy - (SD) vs its state
Annual utility averages next to the latest statewide monthly figure — different windows, both labeled.
| Measure | NorthWestern Energy - (SD) | South Dakota (latest month) |
|---|---|---|
| Avg bill | $113.36/mo | $133.30/mo |
| Rate | 12.56¢/kWh | 15.36¢/kWh |
Common questions
How much is the average electric bill with NorthWestern Energy - (SD)?
NorthWestern Energy - (SD) residential customers averaged $113.36 per month in 2024 (EIA-861 annual data) — about $1,360.33 per year.
What does NorthWestern Energy - (SD) charge per kWh?
NorthWestern Energy - (SD) averaged 12.56¢ per kWh for residential service in 2024 (annual revenue divided by sales, EIA-861). Actual rates depend on your plan and season.
How does NorthWestern Energy - (SD) compare to the South Dakota average?
NorthWestern Energy - (SD) bills average $113.36 — lower than the South Dakota average of $133.30 (latest EIA month).
How many customers does NorthWestern Energy - (SD) serve?
NorthWestern Energy - (SD) served 51,467 residential customers in 2024, per EIA-861 — one of the largest utilities we track in SD.
Data: Form EIA-861, 2024 annual residential figures for NorthWestern Energy - (SD). Bill = residential revenue ÷ customers ÷ 12; rate = revenue ÷ sales. State context uses the latest EIA monthly data. See methodology.