Middle Tennessee E M C

What This Utility Data Tells You

Middle Tennessee E M C is a member-owned electric cooperative operating in Tennessee under EIA identifier 12470. It reports service to approximately 334,749 customer accounts and generated about $0.88 billion in annual electric revenue, with a service footprint spanning 59 ZIP codes. Being member-owned, this cooperative answers to its ratepayers rather than outside shareholders, a structure that tends to influence how rate cases and capital spending get decided.

In 2023, the average Middle Tennessee E M C customer experienced 73.8 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. The SAIFI figure, which tracks average outage events per customer, came in at 1.13 for the same period, meaning customers statistically saw about 1 distinct interruption that year. Once major event days (hurricanes, ice storms) are excluded, SAIDI comes down to 51.1 minutes, and the spread against the headline 73.8 indicates how much weather, versus routine infrastructure, drove the outage total.

With 4 consecutive years of EIA data (2020–2023), Middle Tennessee E M C's reliability record can be judged on trend rather than one isolated year. SAIDI dropped from 242.6 to 73.8 minutes across that span, a direction regulators and prospective customers tend to watch closely.