IOU · Pennsylvania · EIA 5487
Duquesne Light Co
IOU · Pennsylvania · 473K customers. According to the U.S. Energy Information Administration's EIA Form 861, reliability for 2023 shows SAIDI 146 minutes/customer.
Reliability verdict
Duquesne Light Co shows above-average chronic reliability in 2023: 63 minutes SAIDI excluding major events (146 minutes including them) across 473K customers.
- 146 min
- SAIDI 2023
- 0.79
- SAIFI 2023
- 63 min
- SAIDI ex-MED
- 473K
- 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 Duquesne Light Co filings show
Duquesne Light Co is an investor-owned utility operating in Pennsylvania under EIA identifier 5487. It reports service to approximately 472,669 customer accounts and generated about $0.83 billion in annual electric revenue, with a service footprint spanning 152 ZIP codes. Investor ownership puts this utility under the regulatory authority of the state public utility commission, which reviews its rate requests and reliability record.
In 2023, the average Duquesne Light Co customer experienced 146.0 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. The SAIFI figure, which tracks average outage events per customer, came in at 0.79 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 63.0 minutes, the gap between that figure and the headline 146.0 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Duquesne Light Co, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 150.0 to 146.0 minutes over that window, a meaningful direction for prospective customers and regulators watching capital investment outcomes.
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.
146 minutes per customer per year
Annual minutes without electric service (2023)
SAIDI by year (2020-2023)
Minutes per customer-year · EIA Form 861
Year-by-year SAIDI for Duquesne Light Co from the same EIA filings as the table below. Lower is better; major-event years can spike the headline figure.
Duquesne Light Co SAIDI trend
Duquesne Light Co vs the nationwide SAIDI distribution
Where this utility's headline SAIDI sits among every EIA Form 861 utility with a reported figure
146 Lower than most fewer outage minutes than 54% 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 Duquesne Light Co sits on price vs. reliability
Among the 781 U.S. utilities large enough to report both revenue per customer and a recent outage record, Duquesne Light Co charges more per customer than 6% of them, and is more reliable (lower SAIDI) than 58% of them, placing it in the quadrant where it pays less while still being more reliable, the best-value quadrant. Revenue per customer and outage minutes are independent figures: paying more does not guarantee fewer outages.
Revenue per customer: $1,757/year · Latest SAIDI: 146.0 minutes/year.
SAIDI 2023 breakdown: 146.0 minutes
Reliability Trend (2020–2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI |
|---|---|---|---|
| 2020 | 150.0 | 111.0 | 0.940 |
| 2021 | 173.0 | 173.0 | 0.930 |
| 2022 | 134.0 | 134.0 | 0.910 |
| 2023 | 146.0 | 63.0 | 0.790 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Service Area
Duquesne Light Co serves 152 ZIP codes in Pennsylvania.
Frequently Asked Questions
How reliable is Duquesne Light Co?
Duquesne Light Co had a SAIDI of 146.0 minutes in 2023 including major weather events, but 63.0 minutes excluding them (the IEEE-standard measure of day-to-day reliability, the gap reflects a major storm that year, not chronic performance). Excluding major storm impacts, this beats the national average, a sign of above-average reliability.
What type of utility is Duquesne Light Co?
Duquesne Light Co is classified as a IOU serving Pennsylvania.
How many customers does Duquesne Light Co serve?
Duquesne Light Co serves approximately 472,669 customers in Pennsylvania.
How has Duquesne Light Co's reliability changed over time?
Duquesne Light Co 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
- Pennsylvania
- Customers
- 472,669
- Annual Revenue
- $0.83B
- EIA ID
- 5487
Explore
Utilities with similar EIA profiles
Two cross-state peer sets for Duquesne Light Co. 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 (473K here), outside Pennsylvania.
Similar chronic SAIDI
Nearest utilities by latest SAIDI minutes (146.0 here), outside Pennsylvania, 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.