SAIDI
18 min per year
Average outage minutes (2021)
Greenwood Utilities Comm is a municipally-owned utility operating in Mississippi under EIA identifier 7651. It reports service to approximately 9,065 customer accounts and generated about $0.03 billion in annual electric revenue, with a service footprint spanning 4 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 2021, the average Greenwood Utilities Comm customer experienced 18.2 minutes of power interruptions — a metric called SAIDI (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. SAIFI — the average number of outage events per customer — was 0.08 for the same period, so customers statistically faced roughly 0 distinct interruptions that year.
The EIA dataset includes 2 years of continuous reporting (2020–2021) for Greenwood Utilities Comm, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 16.6 to 18.2 minutes, which may reflect either worsening weather exposure or delayed grid modernization. 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
18 min per year
Average outage minutes (2021)
SAIFI
0.08 interruptions/yr
Outage frequency (2021)
Customers
9,065
Served in Mississippi
18 minutes per customer per year
Minutes without power per year (2021)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 16.6 | — | 0.071 | 9,230 |
| 2021 | 18.2 | — | 0.083 | 9,114 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
Greenwood Utilities Comm serves 4 ZIP codes in Mississippi.
Greenwood Utilities Comm had a SAIDI of 18.2 minutes in 2021, meaning the average customer experienced about 18 minutes of outages that year. This is below the national average, indicating above-average reliability.
Greenwood Utilities Comm is classified as a Municipal serving Mississippi. Municipal utilities are owned and operated by local governments.
SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of Greenwood Utilities Comm experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing Greenwood Utilities Comm's SAIDI to that benchmark shows whether this utility is above or below average.
Greenwood Utilities Comm serves approximately 9,065 customers in Mississippi. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.
Greenwood Utilities Comm has 2 years of reliability data (2020-2021). 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.