Municipal Massachusetts

City of Norwood - (MA)

63min
SAIDI 2023
0.96
SAIFI 2023
15,779
Customers

What This Utility Data Tells You

City of Norwood - (MA) is a municipally-owned utility operating in Massachusetts under EIA identifier 13839. It reports service to approximately 15,779 customer accounts and generated about $0.06 billion in annual electric revenue, with a service footprint spanning 6 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 City of Norwood - (MA) customer experienced 62.7 minutes of power interruptions — a metric called SAIDI (System Average Interruption Duration Index). 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 0.96 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 46.0 minutes — the gap between that figure and the headline 62.7 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 3 years of continuous reporting (2021–2023) for City of Norwood - (MA), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 108.1 to 62.7 minutes over that window — a meaningful direction for prospective customers and regulators watching capital investment outcomes. All figures on this page come directly from EIA Form 861, the federal annual electric power industry survey, with service territory ZIPs sourced from OpenEI — you can cross-reference them with your own utility bill or use them when comparing providers before relocating.

SAIDI

63 min per year

Average outage minutes (2023)

SAIFI

0.96 interruptions/yr

Outage frequency (2023)

Customers

15,779

Served in Massachusetts

SAIDI vs. National Average (180 min) 15.7%

63 minutes per customer per year

City of Norwood - (MA) SAIDI

Minutes without power per year (2023)

63 SAIDI63 SAIDINat. avg 120120SAIDI63SAIDI

Excellent

Reliability Trend (2021–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2021 108.1 38.2 1.222 16,301
2022 49.4 26.0 0.620 16,301
2023 62.7 46.0 0.960 16,301

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

Service Area

City of Norwood - (MA) serves 6 ZIP codes in Massachusetts.

020210203202062020670208102090

Frequently Asked Questions

How reliable is City of Norwood - (MA)?

City of Norwood - (MA) had a SAIDI of 62.7 minutes in 2023, meaning the average customer experienced about 63 minutes of outages that year. This is below the national average, indicating above-average reliability.

What type of utility is City of Norwood - (MA)?

City of Norwood - (MA) is classified as a Municipal serving Massachusetts. Municipal utilities are owned and operated by local governments.

What does SAIDI mean for City of Norwood - (MA)?

SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of City of Norwood - (MA) experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing City of Norwood - (MA)'s SAIDI to that benchmark shows whether this utility is above or below average.

How many customers does City of Norwood - (MA) serve?

City of Norwood - (MA) serves approximately 15,779 customers in Massachusetts. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.

How has City of Norwood - (MA)'s reliability changed over time?

City of Norwood - (MA) 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.

What is SAIDI without major event days?

SAIDI "without major event days" (SAIDI nMED) excludes outages caused by hurricanes, ice storms, and other catastrophic weather events. It better reflects day-to-day infrastructure reliability rather than vulnerability to extreme weather. Both standard SAIDI and SAIDI nMED are shown in the reliability trend table above.

Utility Profile

Type
Municipal
Customers
15,779
Annual Revenue
$0.06B
EIA ID
13839
Data Source: U.S. Energy Information Administration Form 861 annual electric power industry survey. ZIP service territory from OpenEI.

Related

Data sourced from official EIA reliability statistics and OpenEI utility rate database. See our methodology for details. Retrieved and formatted by PlainUtility Editorial

Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Energy Information Administration (EIA) Form 861. Consult a qualified professional before making decisions based on this data.