Montana-Dakota Utilities Co.

Montana-Dakota Utilities does not publish an EV-specific time-of-use rate that can be confirmed against its own tariff filings. Residential EV owners in MDU territory charge on standard residential service, billed per the rate schedule filed with their state public service commission. MDU does file a general optional time-of-day rate in some of its states, but it is not marketed as an EV rate and its current peak and off-peak prices could not be verified from a primary source for this brief. Anyone considering time-of-day billing should confirm the exact windows and prices with MDU for their specific state before enrolling.

MDU offers no residential or commercial EV charger rebate that can be sourced from the utility or from government databases. The U.S. Department of Energy Alternative Fuels Data Center lists no MDU EV incentives. Because there is no rebate program, there is no rate-versus-rebate stacking question to answer here; an EV owner's only utility-side lever is the rate schedule they choose. Federal incentives such as the IRS charger tax credit apply independently of MDU and are not administered by the utility.

MDU's footprint is unusual: one investor-owned utility spread thinly across four sparsely populated Great Plains states, each with its own public service commission and its own rate dockets. A program or rate that exists in one MDU state does not automatically exist in the others, so an EV owner in North Dakota and one in Wyoming may face different tariffs from the same company. These rural markets have seen very limited utility EV-program activity to date, which is why the MDU page is thin rather than incomplete.