Municipal · Massachusetts · EIA 11586

Town of Mansfield - (MA)

Municipal · Massachusetts · 11K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 53 minutes/customer.

Reliability detail ↓ Massachusetts utilities

Reliability verdict

Town of Mansfield - (MA) shows above-average chronic reliability in 2023: 10 minutes SAIDI excluding major events (53 minutes including them) across 11K customers.

53 min
SAIDI 2023
0.53
SAIFI 2023
10 min
SAIDI ex-MED
11K
Customers

Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.

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Signature read: short interruption minutes vs the 911 utility cohort (≤96 min tercile cut).

What short-outage Town of Mansfield - (MA) filings show

Town of Mansfield - (MA) is a municipally-owned utility operating in Massachusetts under EIA identifier 11586. It reports service to approximately 10,553 customer accounts and generated about $0.04 billion in annual electric revenue, with a service footprint spanning 8 ZIP codes. Municipal ownership means a local board or city council typically oversees this utility, and it is exempt from federal income tax.

In 2023, the average Town of Mansfield - (MA) customer experienced 52.9 minutes of power interruptions, the industry-standard SAIDI metric (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 0.53, putting the typical customer at roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 9.7 minutes, the gap between that figure and the headline 52.9 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Town of Mansfield - (MA), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 8.7 to 52.9 minutes, which may reflect either worsening weather exposure or delayed grid modernization.

A
Reliability Score
88/100
Town of Mansfield - (MA) · 3 of 3 dimensions reported

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.

Baseline Reliability A+ 9.7 min/yr
SAIDI excluding major-event days — day-to-day grid performance
Total Outage Duration A- 52.9 min/yr
SAIDI including storms and major events — the full-year experience
Outage Frequency A- 0.53/yr
SAIFI — average number of interruptions per customer per year
SAIDI vs. national mean (341 min) 7.1%

53 outage minutes per customer annually

Town of Mansfield - (MA) SAIDI

Minutes without power per year (2023)

53 SAIDI53 SAIDINat. avg 341341SAIDI53SAIDI

Excellent

SAIDI by year (2020-2023)

Minutes per customer-year · EIA Form 861

Year-by-year SAIDI for Town of Mansfield - (MA) from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.

Source: U.S. EIA Form 861 As of August 2026

Town of Mansfield - (MA) SAIDI trend

0 10 20 30 40 50 60 2020 2021 2022 2023 8.7 2.4 33.9 52.9
Year-by-year SAIDI from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.

Town of Mansfield - (MA) vs the nationwide SAIDI distribution

Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure

53 Among the lowest fewer outage minutes than 82% 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 Town of Mansfield - (MA) sits on price vs. reliability

Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Town of Mansfield - (MA) charges more per customer than 84% of them, and is more reliable (lower SAIDI) than 85% 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.

Town of Mansfield - (MA) vs. a 40-utility national peer sample, price percentile vs. reliability percentile. Scatter plot of 41 data points (bubble-sized by third dimension). 050100150 050100150 Best valuePays for itCheap + riskyWorst deal Price percentile Reliability percentile Point, Price percentile: 0 · Reliability percentile: 37Point, Price percentile: 3 · Reliability percentile: 45Point, Price percentile: 5 · Reliability percentile: 40Point, Price percentile: 8 · Reliability percentile: 85Point, Price percentile: 10 · Reliability percentile: 52Point, Price percentile: 13 · Reliability percentile: 95Point, Price percentile: 15 · Reliability percentile: 22Point, Price percentile: 18 · Reliability percentile: 32Point, Price percentile: 20 · Reliability percentile: 27Point, Price percentile: 23 · Reliability percentile: 80Point, Price percentile: 25 · Reliability percentile: 12Point, Price percentile: 28 · Reliability percentile: 55Point, Price percentile: 30 · Reliability percentile: 65Point, Price percentile: 33 · Reliability percentile: 62Point, Price percentile: 35 · Reliability percentile: 7Point, Price percentile: 38 · Reliability percentile: 0Point, Price percentile: 40 · Reliability percentile: 77Point, Price percentile: 43 · Reliability percentile: 2Point, Price percentile: 45 · Reliability percentile: 30Point, Price percentile: 48 · Reliability percentile: 25Point, Price percentile: 50 · Reliability percentile: 47Point, Price percentile: 53 · Reliability percentile: 43Point, Price percentile: 55 · Reliability percentile: 97Point, Price percentile: 57 · Reliability percentile: 100Point, Price percentile: 60 · Reliability percentile: 5Point, Price percentile: 63 · Reliability percentile: 60Point, Price percentile: 65 · Reliability percentile: 50Point, Price percentile: 68 · Reliability percentile: 10Point, Price percentile: 70 · Reliability percentile: 17Point, Price percentile: 73 · Reliability percentile: 35Point, Price percentile: 75 · Reliability percentile: 82Point, Price percentile: 78 · Reliability percentile: 20Point, Price percentile: 80 · Reliability percentile: 67Point, Price percentile: 83 · Reliability percentile: 75Point, Price percentile: 85 · Reliability percentile: 15Point, Price percentile: 90 · Reliability percentile: 87Point, Price percentile: 93 · Reliability percentile: 70Point, Price percentile: 95 · Reliability percentile: 92Point, Price percentile: 98 · Reliability percentile: 72Point, Price percentile: 100 · Reliability percentile: 57Town of Mansfield - (MA), Price percentile: 84 · Reliability percentile: 85
Town of Mansfield - (MA) vs. a 40-utility national peer sample, price percentile vs. reliability percentile.

Revenue per customer: $3,327/year · Latest SAIDI: 52.9 minutes/year.

SAIDI 2023 breakdown: 52.9 minutes

Reliability Trend (2020–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2020 8.7 4.6 0.071 9,950
2021 2.4 2.4 0.031 9,750
2022 33.9 5.3 0.391 10,400
2023 52.9 9.7 0.525 10,504

SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.

Service Area

Town of Mansfield - (MA) serves 8 ZIP codes in Massachusetts.

0203502048020670235602375027600276202766

Frequently Asked Questions

How reliable is Town of Mansfield - (MA)?

Town of Mansfield - (MA) had a SAIDI of 52.9 minutes in 2023 including major weather events, but 9.7 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). Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.

What type of utility is Town of Mansfield - (MA)?

Town of Mansfield - (MA) is classified as a Municipal serving Massachusetts.

How many customers does Town of Mansfield - (MA) serve?

Town of Mansfield - (MA) serves approximately 10,553 customers in Massachusetts.

How has Town of Mansfield - (MA)'s reliability changed over time?

Town of Mansfield - (MA) 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
Customers
10,553
Annual Revenue
$0.04B
EIA ID
11586

Explore

Utilities with similar EIA profiles

Two cross-state peer sets for Town of Mansfield - (MA). 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 (11K here), outside Massachusetts.

Albertville Municipal Utilities Board 11K · AL Dunn County Electric Coop 10K · WI City of Alexandria - (MN) 11K · MN Northern Wasco County PUD 10K · OR

Similar chronic SAIDI

Nearest utilities by latest SAIDI minutes (52.9 here), outside Massachusetts, excluding the customer-peer set.

South River Elec Member Corp 52.9 min · NC Dakota Electric Association 53.2 min · MN City of Wilson - (NC) 52.6 min · NC City of Lakeland - (FL) 52.6 min · FL

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.