Duquesne Light Co

What This Utility Data Tells You

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.