SAIDI
1309 min per year
Average outage minutes (2023)
Delta Electric Power Assn is a member-owned electric cooperative operating in Mississippi under EIA identifier 22815. It reports service to approximately 28,902 customer accounts and generated about $0.07 billion in annual electric revenue, with a service footprint spanning 56 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 Delta Electric Power Assn customer experienced 1309.3 minutes of power interruptions — a metric called SAIDI (System Average Interruption Duration Index). That is substantially above the 120–180 minute national benchmark, indicating either storm-prone geography, aging infrastructure, or extended restoration windows. SAIFI — the average number of outage events per customer — was 17.38 for the same period, so customers statistically faced roughly 17 distinct interruptions that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 1069.3 minutes — the gap between that figure and the headline 1309.3 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for Delta Electric Power Assn, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has improved from 1597.9 to 1309.3 minutes over that window — a meaningful direction for prospective customers and regulators watching capital investment outcomes. 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.
SAIDI
1309 min per year
Average outage minutes (2023)
SAIFI
17.38 interruptions/yr
Outage frequency (2023)
Customers
28,902
Served in Mississippi
1309 minutes per customer per year
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 1597.9 | 375.7 | 5.633 | 28,596 |
| 2021 | 3877.8 | 457.7 | 4.930 | 28,615 |
| 2022 | 666.9 | 477.9 | 5.800 | 28,831 |
| 2023 | 1309.3 | 1069.3 | 17.380 | 28,926 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Delta Electric Power Assn serves 56 ZIP codes in Mississippi.
Delta Electric Power Assn had a SAIDI of 1309.3 minutes in 2023, meaning the average customer experienced about 1309 minutes of outages that year. This is above the national average, indicating below-average reliability.
Delta Electric Power Assn is classified as a Cooperative serving Mississippi. Electric cooperatives are member-owned nonprofit utilities, typically serving rural areas.
SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of Delta Electric Power Assn experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing Delta Electric Power Assn's SAIDI to that benchmark shows whether this utility is above or below average.
Delta Electric Power Assn serves approximately 28,902 customers in Mississippi. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.
Delta Electric Power Assn has 4 years of reliability data (2020-2023). SAIDI has remained relatively stable over this period. Review the trend table above for year-by-year detail.
SAIDI "without major event days" (SAIDI nMED) excludes outages caused by hurricanes, ice storms, and other catastrophic weather events. It better reflects day-to-day infrastructure reliability rather than vulnerability to extreme weather. Both standard SAIDI and SAIDI nMED are shown in the reliability trend table above.
Disclaimer: This information is provided for informational purposes only and does not constitute professional advice. Data is sourced from the U.S. Energy Information Administration (EIA) Form 861. Consult a qualified professional before making decisions based on this data.
Read our methodology — how this data is sourced, computed, and verified.