SAIDI
425 min per year
Mean outage duration per year (2023)
Altamaha Electric Member Corp is a member-owned electric cooperative operating in Georgia under EIA identifier 407. It reports service to approximately 21,672 customer accounts and generated about $0.06 billion in annual electric revenue, with a service footprint spanning 24 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 Altamaha Electric Member Corp customer experienced 424.7 minutes of power interruptions, a measure known as SAIDI, or System Average Interruption Duration Index. That lands within the usual 120–180 minute national benchmark band, roughly on par with typical U.S. distribution-utility performance. SAIFI, the average number of outage events per customer, was 2.00 for the same period, so customers statistically faced roughly 2 distinct interruptions that year. Strip out major event days (hurricanes, ice storms) and SAIDI falls to 299.6 minutes; the difference from the headline 424.7 shows how much of the outage total came from weather rather than everyday grid issues.
With 4 consecutive years of EIA data (2020–2023), Altamaha Electric Member Corp's reliability record can be judged on trend rather than one isolated year. Over that span, SAIDI rose from 149.6 to 424.7 minutes, possibly reflecting tougher weather years or grid upgrades that have not caught up yet.
SAIDI
425 min per year
Mean outage duration per year (2023)
SAIFI
2.00 interruptions/yr
Events per customer (2023)
Customers
21,672
Served in Georgia
425 minutes per customer per year
Annual minutes without electric service (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 149.6 | 149.2 | 1.770 | 24,069 |
| 2021 | 174.9 | 163.8 | 1.711 | 21,250 |
| 2022 | 297.7 | 179.4 | 2.274 | 21,432 |
| 2023 | 424.7 | 299.6 | 1.997 | 21,672 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Altamaha Electric Member Corp serves 24 ZIP codes in Georgia.
Altamaha Electric Member Corp had a SAIDI of 424.7 minutes in 2023. Leaving aside major weather events, that figure sits close to the national average.
Altamaha Electric Member Corp is classified as a Cooperative serving Georgia.
Altamaha Electric Member Corp serves approximately 21,672 customers in Georgia.
Altamaha Electric Member Corp has 4 years of reliability data (2020-2023). SAIDI has held roughly steady across these years. 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.