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AES Indiana Rates

Pending cases for AES Indiana - formerly Indianapolis Power & Light Co. (IPL) - include the utility's:

In the most recent IURC survey of residential electric utility rates, AES Indiana's average residential bill ranked fifth-highest among the electric utilities under IURC jurisdiction.

Base Rates

AES Indiana's most recent base rate case concluded in October 2018, when the IURC approved.

Base rates cover most infrastructure and operating/maintenance costs while rate adjustment “trackers,” as described below, allow for more frequent rate changes for specific costs as designated by law a settlement agreement among the OUCC, the utility, and numerous additional parties. As of July 2022, base rates make up approximately 87 percent of a typical AES Indiana residential electric bill.

The utility's prior base rates were approved in 2016. A 2017 rate case was dismissed.

Trackers

In addition to base rates, Indiana electric utilities recover and credit separate, specific costs through rate adjustment mechanisms known as "trackers." Rate adjustments via trackers are reviewed by the OUCC and approved by the IURC on a quarterly, semi-annual or annual basis.

The trackers were re-set when IPL's current base rates were approved in October 2018 and are still subject to adjustments every three, six, or 12 months.

AES'  authorized trackers make up about 13 percent of a residential customer's typical electric bill as of July 2022.

AES Indiana uses the following trackers. All filings are available by entering the cause number in the IURC's Online Services Portal.

TrackerRecovers Costs forFrequencyIURC Cause No.
Fuel Adjustment Clause (FAC)Coal and other fuelsQuarterly38703
Environmental Cost Recovery (ECR)Emissions control equipment (including operations & maintenance)Semi-Annual42170
Demand Side Management (DSM)Energy efficiency programsSemi-Annual43623
Green Power Rider (GPR)Program allowing customers to voluntarily buy renewable energy creditsAnnual44121
Off-System Sales (OSS)Sales to the wholesale power marketAnnual44795
Capacity Adjustment Factor (CAP)Capacity cost recoveryAnnual44795
Regional Transmission Organization (RTO)Participation in Midcontinent Independent System Operator (MISO)Annual44808

Additional Cases of Note

Previous AES Indiana/IPL cases before the IURC include:

  • Fixed Green Bill proposal (Cause No. 45884)
  • Proposed electric vehicle portfolio (Cause No. 45509)
  • Current fuel cost factor (IURC Cause No. 38703-FAC135)
  • Cost recovery regarding retirements of Petersburg Units 1 & 2 (Cause No. 45502)
  • Financing request (Cause No. 45575)
  • Petersburg Solar project (Cause No. 45591)
  • Hardy Hills Solar project (Cause No. 45493)
  • COVID-19 investigation (Cause No. 45380)
  • Smart Meter opt out tariff (Cause No. 45264-S1)
  • Three-year energy efficiency plan (Cause No. 45370)
  • 2017 Tax Cuts & Jobs Act investigation (Cause No. 45032)
  • Proposed electric car sharing program for Indianapolis (Cause No. 44478)
  • US EPA rule compliance: Petersburg Generating Station (Cause No. 44794)
  • $511 million plan to install new pollution control equipment at Petersburg and Harding Street generating stations (Cause No. 44242)
  • Construction & operation of a new natural gas-fired generating facility in Morgan County, and conversion of two coal-fired generating units (Units 5 & 6) at the Harding Street station to natural gas (Cause No. 44339)
  • Conversion of Harding Street Unit 7 from coal to natural gas (Cause No. 44540).

Sales Taxes

The seven percent state sales tax applies to all Indiana electric utilities.

8-10-2022