Groton Dept of Utilities - (CT)

What This Utility Data Tells You

Groton Dept of Utilities - (CT) is a municipally-owned utility operating in Connecticut under EIA identifier 7716. It reports service to approximately 13,850 customer accounts and generated about $0.06 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 Groton Dept of Utilities - (CT) customer experienced 120.1 minutes of power interruptions — a metric called SAIDI (System Average Interruption Duration Index). That sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI — the average number of outage events per customer — was 1.04 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 120.1 minutes — the gap between that figure and the headline 120.1 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Groton Dept of Utilities - (CT), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 66.4 to 120.1 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.