IOU Indiana

AES Indiana

467min
SAIDI 2023
1.38
SAIFI 2023
523,392
Customers

What This Utility Data Tells You

AES Indiana is a investor-owned utility operating in Indiana under EIA identifier 9273. It reports service to approximately 523,392 customer accounts and generated about $1.52 billion in annual electric revenue, with a service footprint spanning 82 ZIP codes. As an investor-owned utility, it operates under state public utility commission oversight that reviews rate cases and reliability performance.

In 2023, the average AES Indiana customer experienced 466.8 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 1.38 for the same period, so customers statistically faced roughly 1 distinct interruption that year. Excluding major event days (hurricanes, ice storms), SAIDI drops to 86.7 minutes — the gap between that figure and the headline 466.8 reveals how much weather, not day-to-day infrastructure, drove outages.

The EIA dataset includes 4 years of continuous reporting (2020–2023) for AES Indiana, which lets you see whether reliability is trending up or down rather than judging from a single snapshot. SAIDI has increased from 154.7 to 466.8 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

467 min per year

Average outage minutes (2023)

SAIFI

1.38 interruptions/yr

Outage frequency (2023)

Customers

523,392

Served in Indiana

SAIDI vs. National Average (180 min) 100.0%

467 minutes per customer per year

AES Indiana SAIDI

Minutes without power per year (2023)

467 SAIDI467 SAIDINat. avg 120120SAIDI467SAIDI

Below Average

Reliability Trend (2020–2023)

Year SAIDI (min) SAIDI nMED SAIFI Customers
2020 154.7 73.4 1.159 507,900
2021 176.4 104.4 1.607 513,800
2022 147.3 112.5 1.507 514,800
2023 466.8 86.7 1.384 520,000

SAIDI nMED = SAIDI without major event days. Source: EIA Form 861.

Service Area

AES Indiana serves 82 ZIP codes in Indiana.

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Frequently Asked Questions

How reliable is AES Indiana?

AES Indiana had a SAIDI of 466.8 minutes in 2023, meaning the average customer experienced about 467 minutes of outages that year. This is above the national average, indicating below-average reliability.

What type of utility is AES Indiana?

AES Indiana is classified as a IOU serving Indiana. Investor-owned utilities (IOUs) are for-profit companies regulated by state public utility commissions.

What does SAIDI mean for AES Indiana?

SAIDI (System Average Interruption Duration Index) measures the average total minutes per year that a customer of AES Indiana experiences power outages. A lower SAIDI indicates better reliability. The national average is roughly 120-180 minutes per year, so comparing AES Indiana's SAIDI to that benchmark shows whether this utility is above or below average.

How many customers does AES Indiana serve?

AES Indiana serves approximately 523,392 customers in Indiana. Customer count can affect reliability metrics because larger utilities may face different infrastructure challenges compared to smaller ones.

How has AES Indiana's reliability changed over time?

AES Indiana 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.

What is SAIDI without major event days?

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.

Utility Profile

Type
IOU
State
Indiana
Customers
523,392
Annual Revenue
$1.52B
EIA ID
9273
Data Source: U.S. Energy Information Administration Form 861 annual electric power industry survey. ZIP service territory from OpenEI.

Related

Data sourced from official EIA reliability statistics and OpenEI utility rate database. See our methodology for details. Retrieved and formatted by PlainUtility Editorial

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.