Municipal · South Dakota · EIA 2285
City of Brookings - (SD)
Municipal · South Dakota · 12K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 62 minutes/customer.
Reliability verdict
City of Brookings - (SD) shows above-average chronic reliability in 2023: 9 minutes SAIDI excluding major events (62 minutes including them) across 12K customers.
- 62 min
- SAIDI 2023
- 1.16
- SAIFI 2023
- 9 min
- SAIDI ex-MED
- 12K
- 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 City of Brookings - (SD) filings show
City of Brookings - (SD) is a municipally-owned utility operating in South Dakota under EIA identifier 2285. It reports service to approximately 11,954 customer accounts and generated about $0.03 billion in annual electric revenue, with a service footprint spanning 2 ZIP codes. Being municipally owned, the utility answers to a local board or city council rather than a state commission, and carries a federal income tax exemption.
In 2023, the average City of Brookings - (SD) customer experienced 61.8 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). Excluding major weather events from that total, that places this utility well below the 120–180 minute national benchmark, signaling strong grid hardening and fast restoration practices. SAIFI, the average number of outage events per customer, was 1.16 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 9.0 minutes, and the spread against the headline 61.8 indicates how much weather, versus routine infrastructure, drove the outage total.
City of Brookings - (SD) has 3 years of continuous EIA reporting on file (2021–2023), enough to read a real trend rather than a single-year snapshot. Over that span, SAIDI rose from 4.1 to 61.8 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.
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.
62 minutes per customer per year
Power-out minutes per year (2023)
SAIDI by year (2021-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for City of Brookings - (SD) from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
City of Brookings - (SD) SAIDI trend
City of Brookings - (SD) vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
62 Among the lowest fewer outage minutes than 78% 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 City of Brookings - (SD) sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, City of Brookings - (SD) charges more per customer than 52% of them, and is more reliable (lower SAIDI) than 81% 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: $2,568/year · Latest SAIDI: 61.8 minutes/year.
SAIDI 2023 breakdown: 61.8 minutes
Reliability Trend (2021–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2021 | 4.1 | 4.1 | 0.052 | 11,665 |
| 2022 | 1760.5 | 1760.5 | 1.081 | 11,693 |
| 2023 | 61.8 | 9.0 | 1.157 | 11,965 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
City of Brookings - (SD) serves 2 ZIP codes in South Dakota.
Frequently Asked Questions
How reliable is City of Brookings - (SD)?
City of Brookings - (SD) had a SAIDI of 61.8 minutes in 2023 including major weather events, but 9.0 minutes excluding them (the IEEE-standard day-to-day reliability measure, the difference points to a major storm that year rather than an ongoing problem). Excluding major weather events, this is below the national average, indicating above-average reliability.
What type of utility is City of Brookings - (SD)?
City of Brookings - (SD) is classified as a Municipal serving South Dakota.
How many customers does City of Brookings - (SD) serve?
City of Brookings - (SD) serves approximately 11,954 customers in South Dakota.
How has City of Brookings - (SD)'s reliability changed over time?
City of Brookings - (SD) has 3 years of reliability data (2021-2023). SAIDI has remained relatively stable over this period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- Municipal
- State
- South Dakota
- Customers
- 11,954
- Annual Revenue
- $0.03B
- EIA ID
- 2285
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for City of Brookings - (SD). 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 (12K here), outside South Dakota.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (61.8 here), outside South Dakota, 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.