SAIDI
30 min per year
Average outage minutes (2023)
What This Utility Data Tells You
Hartford Electric is a municipally-owned utility operating in Wisconsin under EIA identifier 8212. It reports service to approximately 7,907 customer accounts and generated about $0.03 billion in annual electric revenue, with a service footprint spanning 2 ZIP codes. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.
In 2023, the average Hartford Electric customer experienced 29.8 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that is comfortably under the 120–180 minute national benchmark range, a sign of solid grid resilience and quick outage response. Over the same period, SAIFI (outage events per customer) was 0.25, putting the typical customer at roughly 0 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 0.0 minutes, the gap between that figure and the headline 29.8 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Hartford Electric, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. Over that window, SAIDI moved from 33.6 down to 29.8 minutes, a trend worth noting for anyone weighing capital investment outcomes.
SAIFI
0.25 interruptions/yr
Events per customer (2023)
Customers
7,907
Customers across Wisconsin
SAIDI vs. National Average (180 min) 7.5%
30 outage minutes per customer annually
Annual minutes without electric service (2023)
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 33.6 | - | 0.286 | - |
| 2021 | 7.9 | 0.0 | 0.073 | - |
| 2022 | 34.8 | 0.0 | 0.315 | - |
| 2023 | 29.8 | 0.0 | 0.248 | - |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Hartford Electric serves 2 ZIP codes in Wisconsin.
5302753078
Frequently Asked Questions
How reliable is Hartford Electric?
Hartford Electric had a SAIDI of 29.8 minutes in 2023 including major weather events, but 0.0 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 below the national average, indicating above-average reliability.
What type of utility is Hartford Electric?
Hartford Electric is classified as a Municipal serving Wisconsin.
How many customers does Hartford Electric serve?
Hartford Electric serves approximately 7,907 customers in Wisconsin.
How has Hartford Electric's reliability changed over time?
Hartford Electric 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
- Municipal
- State
- Wisconsin
- Customers
- 7,907
- Annual Revenue
- $0.03B
- EIA ID
- 8212
Explore
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.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.