SAIDI
159 min per year
Average outage minutes (2023)
City of Grand Haven - (MI) is a municipally-owned utility operating in Michigan under EIA identifier 7483. It reports service to approximately 14,955 customer accounts and generated about $0.04 billion in annual electric revenue, with a service footprint spanning 1 ZIP code. As a municipal utility, it is typically governed by a local board or city council and is exempt from federal income tax.
In 2023, the average City of Grand Haven - (MI) customer experienced 158.7 minutes of power interruptions — a metric called SAIDI (System Average Interruption Duration Index). That sits within the 120–180 minute national benchmark range, indicating performance typical of U.S. distribution utilities. SAIFI — the average number of outage events per customer — was 1.45 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 28.9 minutes — the gap between that figure and the headline 158.7 reveals how much weather, not day-to-day infrastructure, drove outages.
The EIA dataset includes 4 years of continuous reporting (2020–2023) for City of Grand Haven - (MI), which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 73.2 to 158.7 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
159 min per year
Average outage minutes (2023)
SAIFI
1.45 interruptions/yr
Outage frequency (2023)
Customers
14,955
Served in Michigan
159 minutes per customer per year
Minutes without power per year (2023)
| Year | SAIDI (min) | SAIDI nMED | SAIFI | Customers |
|---|---|---|---|---|
| 2020 | 73.2 | 17.3 | 0.800 | 14,568 |
| 2021 | 165.1 | 22.7 | 1.384 | 14,645 |
| 2022 | 127.8 | 24.7 | 1.554 | 14,765 |
| 2023 | 158.7 | 28.9 | 1.449 | 14,920 |
SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.
City of Grand Haven - (MI) serves 1 ZIP code in Michigan.
City of Grand Haven - (MI) had a SAIDI of 158.7 minutes in 2023, meaning the average customer experienced about 159 minutes of outages that year. This is near the national average.
City of Grand Haven - (MI) is classified as a Municipal serving Michigan. 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 City of Grand Haven - (MI) experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing City of Grand Haven - (MI)'s SAIDI to that benchmark shows whether this utility is above or below average.
City of Grand Haven - (MI) serves approximately 14,955 customers in Michigan. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.
City of Grand Haven - (MI) 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.