Nashville Electric Service

What This Utility Data Tells You

Nashville Electric Service is a municipally-owned utility operating in Tennessee under EIA identifier 13216. It reports service to approximately 451,476 customer accounts and generated about $1.42 billion in annual electric revenue, with a service footprint spanning 70 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 Nashville Electric Service customer experienced 1312.3 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. Excluding major weather events from that total, that sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. The SAIFI figure, which tracks average outage events per customer, came in at 3.03 for the same period, meaning customers statistically saw about 3 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 143.7 minutes; the difference from the headline 1312.3 shows how much of the outage total came from weather rather than everyday grid issues.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for Nashville Electric Service, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. Over that window, SAIDI moved from 1854.4 down to 1312.3 minutes, a trend worth noting for anyone weighing capital investment outcomes.