IOU · Michigan · EIA 5109
DTE Electric Company
IOU · Michigan · 2.3M customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 1542 minutes/customer.
Reliability verdict
DTE Electric Company shows near-benchmark chronic reliability in 2023: 157 minutes SAIDI excluding major events (1542 minutes including them) across 2.3M customers.
- 1542 min
- SAIDI 2023
- 1.72
- SAIFI 2023
- 157 min
- SAIDI ex-MED
- 2.3M
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: long interruption minutes vs the 911 utility cohort (>258 min tercile cut).
What long-outage DTE Electric Company filings show
DTE Electric Company is an investor-owned utility operating in Michigan under EIA identifier 5109. It reports service to approximately 2,266,484 customer accounts and generated about $5.76 billion in annual electric revenue, with a service footprint spanning 343 ZIP codes. As an investor-owned utility, it operates under state public utility commission oversight that reviews rate cases and reliability performance.
In 2023, the average DTE Electric Company customer experienced 1542.3 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. Over the same period, SAIFI (outage events per customer) was 1.72, putting the typical customer at roughly 2 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 156.8 minutes, the gap between that figure and the headline 1542.3 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for DTE Electric Company, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 351.8 to 1542.3 minutes, which may reflect either worsening weather exposure or delayed grid modernization.
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.
1542 minutes per customer per year
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for DTE Electric Company from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
DTE Electric Company SAIDI trend
DTE Electric Company vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
1,542 Higher than most fewer outage minutes than 4% 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 DTE Electric Company sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, DTE Electric Company charges more per customer than 51% of them, and is more reliable (lower SAIDI) than 4% 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: $2,543/year · Latest SAIDI: 1542.3 minutes/year.
SAIDI 2023 breakdown: 1542.3 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 351.8 | 141.9 | 1.286 | 2,204,114 |
| 2021 | 927.4 | 135.6 | 1.581 | 2,226,029 |
| 2022 | 583.9 | 146.2 | 1.249 | 2,240,565 |
| 2023 | 1542.3 | 156.8 | 1.722 | 2,252,226 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
DTE Electric Company serves 343 ZIP codes in Michigan.
Frequently Asked Questions
How reliable is DTE Electric Company?
DTE Electric Company had a SAIDI of 1542.3 minutes in 2023 including major weather events, but 156.8 minutes excluding them (the industry-standard measure of routine reliability, so the gap traces back to a major storm that year, not a chronic issue). Excluding major weather events, this is near the national average.
What type of utility is DTE Electric Company?
DTE Electric Company is classified as a IOU serving Michigan.
How many customers does DTE Electric Company serve?
DTE Electric Company serves approximately 2,266,484 customers in Michigan.
How has DTE Electric Company's reliability changed over time?
DTE Electric Company has 4 years of reliability data (2020-2023). SAIDI has remained relatively stable over this period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- Michigan
- Customers
- 2,266,484
- Annual Revenue
- $5.76B
- EIA ID
- 5109
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for DTE Electric Company. 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 (2.3M here), outside Michigan.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (1542.3 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.