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AES Indiana/IPL Infrastructure Plan

AES Indiana - formerly Indianapolis Power & Light Co. (IPL) - received IURC approval of a seven-year, $1.2 billion infrastructure plan (Cause No. 45264) in a March 4, 2020 order.

The OUCC filed testimony (Blakley and Krieger) in October 2019.

Under state law, AES Indiana can seek incremental rate increases during the plan's life, as described below.

  • AES Indiana has received approval of its first rate tracker under the approved plan. It raised an average monthly residential bill by $0.44.
  • The IURC issued its order on the utility's requested plan update in May 2021. The OUCC filed testimony in March 2021.
  • The most recent tracker request from AES Indiana will raise an average monthly residential bill by $0.89. The OUCC filed testimony on Aug. 23, 2021.
  • In a sub-docket of this case, a settlement agreement establishing an advanced meter opt-out tariff has received Commission approval.
A brief summary of the TDSIC law

Indiana Code 8-1-39 allows electric and natural gas utilities to submit infrastructure improvement plans for IURC approval. A plan may cover a 5- to 7-year range. The IURC must rule within 210 days once such a request is filed.

  • Once a plan receives IURC approval, the utility may request incremental rate increases every 6 months to pay for the projects. The rate adjustment is referred to as the Transmission, Distribution and Storage System Improvement Charge (TDSIC). OUCC testimony is due within 60 days of the utility's filing. The IURC has 120 days to rule on such a request.
  • Annual TDSIC rate increases are limited to no more than 2 percent of a utility's total retail revenues.
  • The TDSIC rate mechanism (or tracker) allows the utility to recover 80 percent of the costs as they are incurred. The remaining costs are deferred until the utility's next base rate case, which must be filed before the end of the plan's lifespan.

This page will be updated based on case developments.