IOU · Michigan · EIA 13780
Northern States Power Co
IOU · Michigan · 260K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 245 minutes/customer.
Reliability verdict
Northern States Power Co shows near-benchmark chronic reliability in 2023: 163 minutes SAIDI excluding major events across 260K customers.
- 245 min
- SAIDI 2023
- 1.59
- SAIFI 2023
- 163 min
- SAIDI ex-MED
- 260K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.
What mid-pack Northern States Power Co filings show
Northern States Power Co is an investor-owned utility operating in Michigan under EIA identifier 13780. It reports service to approximately 259,879 customer accounts and generated about $0.82 billion in annual electric revenue, with a service footprint spanning 217 ZIP codes. Investor ownership puts this utility under the regulatory authority of the state public utility commission, which reviews its rate requests and reliability record.
In 2023, the average Northern States Power Co customer experienced 245.2 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI, the average number of outage events per customer, was 1.59 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 163.5 minutes, and the spread against the headline 245.2 indicates how much weather, versus routine infrastructure, drove the outage total.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Northern States Power Co, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 346.0 to 245.2 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
Based on this utility's own EIA Form 861 reliability record -- baseline (major-event- excluded) outage duration, total outage duration, and outage frequency -- each benchmarked against every reporting utility nationwide. Not a measure of electricity rates or customer service, which this portal does not track.
245 min/year per customer
Power-out minutes per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Northern States Power Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Northern States Power Co SAIDI trend
Northern States Power Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
245 Around the middle fewer outage minutes than 36% of 911 utilities
Utilities nationwide, banded by latest reported SAIDI (minutes)
Each bar is a band; taller bars hold more utilities. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source U.S. EIA Form 861 reliability filings · August 2026
Price vs. reliability
Where Northern States Power Co sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Northern States Power Co charges more per customer than 80% of them, and is more reliable (lower SAIDI) than 39% of them, placing it in the quadrant where it pays more but is LESS reliable, a premium price without a reliability payoff. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $3,148/year · Latest SAIDI: 245.2 minutes/year.
SAIDI 2023 breakdown: 245.2 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 346.0 | 244.0 | 2.408 | 8,873 |
| 2021 | 562.2 | 177.0 | 2.112 | 8,901 |
| 2022 | 391.1 | 211.8 | 1.972 | 8,931 |
| 2023 | 245.2 | 163.5 | 1.590 | 8,923 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Northern States Power Co serves 217 ZIP codes in Michigan.
Frequently Asked Questions
How reliable is Northern States Power Co?
Northern States Power Co had a SAIDI of 245.2 minutes in 2023. Leaving aside major weather events, that figure sits close to the national average.
What type of utility is Northern States Power Co?
Northern States Power Co is classified as a IOU serving Michigan.
How many customers does Northern States Power Co serve?
Northern States Power Co serves approximately 259,879 customers in Michigan.
How has Northern States Power Co's reliability changed over time?
Northern States Power Co has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- Michigan
- Customers
- 259,879
- Annual Revenue
- $0.82B
- EIA ID
- 13780
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Northern States Power Co. Same-state SAIDI neighbors stay in Read-with below; these neighborhoods are nearest other-state utilities with at least 10,000 reported customers.
Similar customer count
Nearest utilities by Form 861 customers (260K here), outside Michigan.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (245.2 here), outside Michigan, excluding the customer-peer set.
Source: U.S. Energy Information Administration Form 861 annual electric power industry survey · ZIP service territory: OpenEI. Disclaimer: informational only, not professional advice. See full disclaimer · methodology.