Municipal Ohio

City of Hamilton - (OH)

77min
SAIDI 2023
1.18
SAIFI 2023
29,735
Customers

What This Utility Data Tells You

City of Hamilton - (OH) is a municipally-owned utility operating in Ohio under EIA identifier 7977. It reports service to approximately 29,735 customer accounts and generated about $0.08 billion in annual electric revenue, with a service footprint spanning 5 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 Hamilton - (OH) customer experienced 76.6 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 1.18 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 62.6 minutes — the gap between that figure and the headline 76.6 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for City of Hamilton - (OH), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 32.1 to 76.6 minutes, which may reflect either worsening weather exposure or delayed grid modernization. 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

77 min per year

Average outage minutes (2023)

SAIFI

1.18 interruptions/yr

Outage frequency (2023)

Customers

29,735

Served in Ohio

SAIDI vs. National Average (180 min) 19.2%

77 minutes per customer per year

City of Hamilton - (OH) SAIDI

Minutes without power per year (2023)

77 SAIDI77 SAIDINat. avg 120120SAIDI77SAIDI

Excellent

Reliability Trend (2020–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2020 32.1 32.1 0.450 29,491
2021 52.5 52.5 0.770 29,582
2022 55.6 51.8 2.049 29,601
2023 76.6 62.6 1.181 29,735

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

Service Area

City of Hamilton - (OH) serves 5 ZIP codes in Ohio.

4501145012450134501445015

Frequently Asked Questions

How reliable is City of Hamilton - (OH)?

City of Hamilton - (OH) had a SAIDI of 76.6 minutes in 2023, meaning the average customer experienced about 77 minutes of outages that year. This is below the national average, indicating above-average reliability.

What type of utility is City of Hamilton - (OH)?

City of Hamilton - (OH) is classified as a Municipal serving Ohio. Municipal utilities are owned and operated by local governments.

What does SAIDI mean for City of Hamilton - (OH)?

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

How many customers does City of Hamilton - (OH) serve?

City of Hamilton - (OH) serves approximately 29,735 customers in Ohio. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.

How has City of Hamilton - (OH)'s reliability changed over time?

City of Hamilton - (OH) 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.

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
State
Ohio
Customers
29,735
Annual Revenue
$0.08B
EIA ID
7977
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.