AES Indiana IURC Lawsuit: What the Governance Crisis Means for Your January 2027 Rates

This arc has now appeared in eight TEG Daily briefs over the past 27 days, and it keeps developing. Here's what's new as of this week.

Governor Braun's August 17 court filing alleges that fired IURC Chair Andy Zay used $3,090 in campaign funds (paid to custom apparel firm Candor Threads) to purchase utility-themed scarves and ties distributed to IURC employees, with the Indiana Election Division reportedly finding the expenses illegitimate. Zay's lawsuit argues his August 3 firing was politically motivated, pointing to a call from Secretary of Energy and Natural Resources Suzanne Jaworowski two days before the AES rate vote, telling him affordability is a priority for the governor.

The conflict-of-interest angle that hasn't received enough attention: Josh Bain, Braun's replacement appointee who now sits on the IURC deciding the AES rehearing, co-sponsored a City-County Council resolution in October 2025 explicitly urging AES to withdraw its rate request. He is now one of the commissioners adjudicating that same rate case. Braun has reshaped at minimum three of five IURC seats within weeks of a contested vote.

Here's what this means for your 2027 capital plan. Indianapolis customers are already paying increased rates from the June 17 approval. If Zay is reinstated by a court before the rehearing vote (a high bar in Indiana courts, but a real tail scenario) the commission's composition and any votes taken in the interim become subject to legal challenge, which could delay phase-two implementation past January 2027. If the case is ultimately redecided against AES, the utility could owe refunds to customers who paid the increased rate.

Named parties in the AES rate case include Walmart, Rolls-Royce, Eli Lilly, and Allison Transmission. If your operation is in AES Indiana territory and you haven't stress-tested your 2027 electricity cost projections against both a rate-reversal refund scenario and a phase-two increase scenario, that stress test needs to happen now, not after the court rules.