IOU · New York · EIA 13573
Niagara Mohawk Power Corp.
IOU · New York · 1.5M customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 208 minutes/customer.
Reliability verdict
Niagara Mohawk Power Corp. shows near-benchmark chronic reliability in 2023: 132 minutes SAIDI excluding major events across 1.5M customers.
- 208 min
- SAIDI 2023
- 1.14
- SAIFI 2023
- 132 min
- SAIDI ex-MED
- 1.5M
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: mid-cohort SAIDI between the 96 and 258 minute tercile cuts.
What mid-pack Niagara Mohawk Power Corp. filings show
Niagara Mohawk Power Corp. is an investor-owned utility operating in New York under EIA identifier 13573. It reports service to approximately 1,542,714 customer accounts and generated about $2.31 billion in annual electric revenue, with a service footprint spanning 500 ZIP codes. Because it is investor-owned, the state public utility commission oversees its rate cases and reliability performance rather than a local board.
In 2023, the average Niagara Mohawk Power Corp. customer experienced 207.9 minutes of power interruptions, the industry-standard SAIDI metric (System Average Interruption Duration Index). 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 1.14 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 132.4 minutes; the difference from the headline 207.9 shows how much of the outage total came from weather rather than everyday grid issues.
With 4 consecutive years of EIA data (2020–2023), Niagara Mohawk Power Corp.'s reliability record can be judged on trend rather than one isolated year. SAIDI dropped from 455.3 to 207.9 minutes across that span, a direction regulators and prospective customers tend to watch closely.
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.
208 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 Niagara Mohawk Power Corp. from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Niagara Mohawk Power Corp. SAIDI trend
Niagara Mohawk Power Corp. vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
208 Around the middle fewer outage minutes than 41% 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 Niagara Mohawk Power Corp. sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Niagara Mohawk Power Corp. charges more per customer than 1% of them, and is more reliable (lower SAIDI) than 44% of them, placing it in the quadrant where it pays less and is less reliable. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $1,496/year · Latest SAIDI: 207.9 minutes/year.
SAIDI 2023 breakdown: 207.9 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 455.3 | 144.5 | 1.499 | 1,663,243 |
| 2021 | 221.3 | 133.7 | 1.318 | 1,674,003 |
| 2022 | 354.0 | 152.7 | 1.489 | 1,678,861 |
| 2023 | 207.9 | 132.4 | 1.142 | 1,679,983 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Niagara Mohawk Power Corp. serves 500 ZIP codes in New York.
Frequently Asked Questions
How reliable is Niagara Mohawk Power Corp.?
Niagara Mohawk Power Corp. had a SAIDI of 207.9 minutes in 2023. Leaving aside major weather events, that figure sits close to the national average.
What type of utility is Niagara Mohawk Power Corp.?
Niagara Mohawk Power Corp. is classified as a IOU serving New York.
How many customers does Niagara Mohawk Power Corp. serve?
Niagara Mohawk Power Corp. serves approximately 1,542,714 customers in New York.
How has Niagara Mohawk Power Corp.'s reliability changed over time?
Niagara Mohawk Power Corp. has 4 years of reliability data (2020-2023). This utility's SAIDI has stayed fairly flat over the period. Review the trend table above for year-by-year detail.
Utility Profile
- Type
- IOU
- State
- New York
- Customers
- 1,542,714
- Annual Revenue
- $2.31B
- EIA ID
- 13573
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Niagara Mohawk Power Corp.. 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 (1.5M here), outside New York.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (207.9 here), outside New York, 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.