Municipal · Connecticut · EIA 13831
City of Norwich - (CT)
Municipal · Connecticut · 21K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 457 minutes/customer.
Reliability verdict
City of Norwich - (CT) shows near-benchmark chronic reliability in 2023: 153 minutes SAIDI excluding major events (457 minutes including them) across 21K customers.
- 457 min
- SAIDI 2023
- 2.40
- SAIFI 2023
- 153 min
- SAIDI ex-MED
- 21K
- 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 City of Norwich - (CT) filings show
City of Norwich - (CT) is a municipally-owned utility operating in Connecticut under EIA identifier 13831. It reports service to approximately 20,808 customer accounts and generated about $0.07 billion in annual electric revenue, with a service footprint spanning 10 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 Norwich - (CT) customer experienced 456.9 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). Excluding major weather events from that total, that falls inside the typical 120–180 minute national benchmark, in line with what most U.S. distribution utilities report. SAIFI, the average number of outage events per customer, was 2.40 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 153.2 minutes, and the spread against the headline 456.9 indicates how much weather, versus routine infrastructure, drove the outage total.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for City of Norwich - (CT), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 132.2 to 456.9 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.
457 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 City of Norwich - (CT) from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
City of Norwich - (CT) SAIDI trend
City of Norwich - (CT) vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
457 Higher than most fewer outage minutes than 19% 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 Norwich - (CT) 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 Norwich - (CT) charges more per customer than 80% of them, and is more reliable (lower SAIDI) than 22% 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: $3,153/year · Latest SAIDI: 456.9 minutes/year.
SAIDI 2023 breakdown: 456.9 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 132.2 | 132.2 | 0.930 | 20,564 |
| 2021 | 169.3 | 113.4 | 0.929 | 20,642 |
| 2022 | 120.5 | 120.5 | 1.010 | 20,747 |
| 2023 | 456.9 | 153.2 | 2.400 | 20,808 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
City of Norwich - (CT) serves 10 ZIP codes in Connecticut.
Frequently Asked Questions
How reliable is City of Norwich - (CT)?
City of Norwich - (CT) had a SAIDI of 456.9 minutes in 2023 including major weather events, but 153.2 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 storm impacts, this tracks roughly with the national average.
What type of utility is City of Norwich - (CT)?
City of Norwich - (CT) is classified as a Municipal serving Connecticut.
How many customers does City of Norwich - (CT) serve?
City of Norwich - (CT) serves approximately 20,808 customers in Connecticut.
How has City of Norwich - (CT)'s reliability changed over time?
City of Norwich - (CT) 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
- Connecticut
- Customers
- 20,808
- Annual Revenue
- $0.07B
- EIA ID
- 13831
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for City of Norwich - (CT). 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 (21K here), outside Connecticut.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (456.9 here), outside Connecticut, 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.