State · New York · EIA 11171
Long Island Power Authority
State · New York · 1.2M customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 62 minutes/customer.
Reliability verdict
Long Island Power Authority shows above-average chronic reliability in 2023: 59 minutes SAIDI excluding major events across 1.2M customers.
- 62 min
- SAIDI 2023
- 0.71
- SAIFI 2023
- 59 min
- SAIDI ex-MED
- 1.2M
- Customers
Chronic reliability judged on SAIDI excluding major event days when reported (IEEE 1366). Source: EIA Form 861 · August 2026.
Signature read: short interruption minutes vs the 911 utility cohort (≤96 min tercile cut).
What short-outage Long Island Power Authority filings show
Long Island Power Authority is a state utility operating in New York under EIA identifier 11171. It reports service to approximately 1,154,795 customer accounts and generated about $3.67 billion in annual electric revenue, with a service footprint spanning 209 ZIP codes.
In 2023, the average Long Island Power Authority customer experienced 62.5 minutes of power interruptions, the industry-standard SAIDI metric (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 0.71 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 59.3 minutes; the difference from the headline 62.5 shows how much of the outage total came from weather rather than everyday grid issues.
With 4 consecutive years of EIA data (2020–2023), Long Island Power Authority's reliability record can be judged on trend rather than one isolated year. SAIDI dropped from 79.2 to 62.5 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.
62 outage minutes per customer annually
Minutes without power per year (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Long Island Power Authority from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Long Island Power Authority SAIDI trend
Long Island Power Authority vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
62 Among the lowest fewer outage minutes than 78% 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 Long Island Power Authority sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Long Island Power Authority charges more per customer than 81% of them, and is more reliable (lower SAIDI) than 81% 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.
Revenue per customer: $3,179/year · Latest SAIDI: 62.5 minutes/year.
SAIDI 2023 breakdown: 62.5 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI |
|---|---|---|---|
| 2020 | 79.2 | 66.0 | 0.855 |
| 2021 | 67.3 | 54.7 | 0.727 |
| 2022 | 62.4 | 56.0 | 0.723 |
| 2023 | 62.5 | 59.3 | 0.712 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Long Island Power Authority serves 209 ZIP codes in New York.
Frequently Asked Questions
How reliable is Long Island Power Authority?
Long Island Power Authority had a SAIDI of 62.5 minutes in 2023. Leaving aside major weather events, that figure comes in under the national average, pointing to above-average reliability.
What type of utility is Long Island Power Authority?
Long Island Power Authority is classified as a State serving New York.
How many customers does Long Island Power Authority serve?
Long Island Power Authority serves approximately 1,154,795 customers in New York.
How has Long Island Power Authority's reliability changed over time?
Long Island Power Authority 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
- State
- State
- New York
- Customers
- 1,154,795
- Annual Revenue
- $3.67B
- EIA ID
- 11171
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Long Island Power Authority. 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 (1.2M here), outside New York.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (62.5 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.