SAIDI
88 min per year
Yearly outage minutes, on average (2023)
Union Electric Membership Corp - (NC) is a member-owned electric cooperative operating in North Carolina under EIA identifier 19435. It reports service to approximately 85,715 customer accounts and generated about $0.17 billion in annual electric revenue, with a service footprint spanning 32 ZIP codes. As a cooperative, its governance is accountable to its ratepayer-members rather than shareholders, which often shapes rate-setting and reinvestment priorities.
In 2023, the average Union Electric Membership Corp - (NC) customer experienced 88.0 minutes of power interruptions, a metric called SAIDI (System Average Interruption Duration Index). That keeps this utility below the typical 120–180 minute national benchmark, consistent with a well-hardened distribution system and fast restoration crews. The SAIFI figure, which tracks average outage events per customer, came in at 0.89 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 59.3 minutes, and the spread against the headline 88.0 indicates how much weather, versus routine infrastructure, drove the outage total.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Union Electric Membership Corp - (NC), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI dropped from 186.7 to 88.0 minutes across that span, a direction regulators and prospective customers tend to watch closely.
SAIDI
88 min per year
Yearly outage minutes, on average (2023)
SAIFI
0.89 interruptions/yr
Events per customer (2023)
Customers
85,715
Served in North Carolina
88 outage minutes per customer annually
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 186.7 | 61.4 | 1.250 | 78,387 |
| 2021 | 79.8 | 62.0 | 0.936 | 80,287 |
| 2022 | 170.4 | 58.9 | 1.390 | 82,397 |
| 2023 | 88.0 | 59.3 | 0.894 | 84,780 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Union Electric Membership Corp - (NC) serves 32 ZIP codes in North Carolina.
Union Electric Membership Corp - (NC) had a SAIDI of 88.0 minutes in 2023. Excluding major weather events, this is below the national average, indicating above-average reliability.
Union Electric Membership Corp - (NC) is classified as a Cooperative serving North Carolina.
Union Electric Membership Corp - (NC) serves approximately 85,715 customers in North Carolina.
Union Electric Membership Corp - (NC) 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.
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.
Every figure on PlainUtility is rendered directly from the U.S. Energy Information Administration's Form 861 reliability data, no number is typed in by an editor. This utility's SAIDI/SAIFI figures are rendered directly from EIA Form 861 reliability files. See our editorial standards & corrections policy, the methodology behind these numbers, or report a data error. Data current as of 2020-2023.