IOU · Iowa · EIA 12341
MidAmerican Energy Co
IOU · Iowa · 730K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 80 minutes/customer.
Reliability verdict
MidAmerican Energy Co shows above-average chronic reliability in 2023: 59 minutes SAIDI excluding major events across 730K customers.
- 80 min
- SAIDI 2023
- 0.83
- SAIFI 2023
- 59 min
- SAIDI ex-MED
- 730K
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: short interruption minutes vs the 911 utility cohort (≤96 min tercile cut).
What short-outage MidAmerican Energy Co filings show
MidAmerican Energy Co is an investor-owned utility operating in Iowa under EIA identifier 12341. It reports service to approximately 729,757 customer accounts and generated about $2.13 billion in annual electric revenue, with a service footprint spanning 500 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 MidAmerican Energy Co customer experienced 80.0 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. The SAIFI figure, which tracks average outage events per customer, came in at 0.83 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 59.0 minutes, the gap between that figure and the headline 80.0 reveals how much weather, not day-to-day infrastructure, drove outages.
MidAmerican Energy Co has 4 years of continuous EIA reporting on file (2020–2023), enough to read a real trend rather than a single-year snapshot. SAIDI has improved from 1004.0 to 80.0 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes. Note: this figure is unusually low compared to typical U.S. utility performance and may reflect an incomplete EIA filing for this year rather than a genuine reliability improvement -- treat with caution and cross-check against MidAmerican Energy Co's other reported years.
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.
80 outage minutes per customer annually
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for MidAmerican Energy Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
MidAmerican Energy Co SAIDI trend
MidAmerican Energy Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
80 Lower than most fewer outage minutes than 71% 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 MidAmerican Energy 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, MidAmerican Energy Co charges more per customer than 71% of them, and is more reliable (lower SAIDI) than 75% of them, placing it in the quadrant where it pays more and is more reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $2,918/year · Latest SAIDI: 80.0 minutes/year.
SAIDI 2023 breakdown: 80.0 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 1004.0 | 87.0 | 1.440 | 707,155 |
| 2021 | 146.0 | 81.0 | 0.940 | 715,704 |
| 2022 | 99.0 | 81.0 | 0.950 | 724,323 |
| 2023 | 80.0 | 59.0 | 0.830 | 732,233 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
MidAmerican Energy Co serves 500 ZIP codes in Iowa.
Frequently Asked Questions
How reliable is MidAmerican Energy Co?
MidAmerican Energy Co had a SAIDI of 80.0 minutes in 2023. Excluding major weather events, this is below the national average, indicating above-average reliability.
What type of utility is MidAmerican Energy Co?
MidAmerican Energy Co is classified as a IOU serving Iowa.
How many customers does MidAmerican Energy Co serve?
MidAmerican Energy Co serves approximately 729,757 customers in Iowa.
How has MidAmerican Energy Co's reliability changed over time?
MidAmerican Energy Co has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- Iowa
- Customers
- 729,757
- Annual Revenue
- $2.13B
- EIA ID
- 12341
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for MidAmerican Energy 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 (730K here), outside Iowa.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (80.0 here), outside Iowa, 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.