Amazon Web Services triggered a diesel pollution event at its New Carlisle data center on January 27 — and the neighbors were never told. That story, along with AES Indiana's motion to freeze its own rate case, Samsung SDI's full takeover of a $3.5 billion battery plant, and a new biomanufacturing workforce coalition, landed this week with direct cost and compliance consequences for Indiana manufacturers. Here is what each one means for your operation.
On January 27, the Department of Energy issued a Section 202(c) emergency order directing Amazon Web Services' New Carlisle campus to shed 50 megawatts from the grid. Backup diesel generators came online — but temperatures were low enough that air lines froze in five of them. Pollution controls failed. Three pollutants contributing to smog, acid rain, and respiratory irritation were released into the air for five hours. AWS confirmed total emissions stayed below one percent of annual permitted levels. Bob Humbarger, 85, who has farmed the land just east of the campus for more than fifty years, said he was never notified.
The regulatory exposure this creates for I&M customers goes beyond the pollution event itself. Emergency diesel generators carry a permit limit of roughly 100 hours of runtime annually. A DOE Section 202(c) order creates a runtime category that IDEM has not classified. No guidance has been issued on how 202(c)-ordered runtime counts against that 100-hour cap. Until IDEM acts, the classification is legally ambiguous — there is no regulatory backstop limiting how long those generators can run during a federally ordered grid event. Virginia's DEQ exploited identical ambiguity in 2025 by redefining what qualifies as an emergency. Indiana has issued no equivalent guidance.
Two separate cost pressures compound that exposure if you're on I&M's grid. PJM capacity auction clearing prices surged roughly eleven-fold in the most recent auction, and those costs pass through to customers on a near-term basis. I&M's proposed acquisition of an Ohio natural gas plant would separately enter rate base and be recovered from all customers over a 20-to-30-year depreciation schedule. Two distinct mechanisms. They land on the same line of your bill.
What to do now: If you are on I&M's grid, find out whether your current power contract contains any provisions that insulate you from rate base cost recovery tied to hyperscale load growth. The default answer right now is no.
General Motors has exited its 49.99% stake in SynergyCells, the $3.5 billion battery joint venture in New Carlisle. GM cited weaker-than-expected EV demand. Samsung SDI now owns the facility outright and is pivoting from EV prismatic cell production toward grid-scale energy storage.
The mechanism driving that decision is Section 45X of the tax code, which was written to cover battery cells across end-uses — EV and stationary storage alike. That neutrality means a facility built with EV supply chain assumptions can pivot to grid-scale energy storage without losing the $35 per kilowatt-hour production credit. Samsung SDI is doing exactly that. The competitive consequence is that the company is now competing for grid-scale battery contracts against LG Energy Solution and Panasonic rather than supplying Indiana's automotive OEM ecosystem. The 1,700 jobs originally projected for that plant are now tied to energy storage demand cycles, not automotive production schedules.
The geographic overlap matters. Rep. Rudy Yakym, whose district includes New Carlisle, is simultaneously backing Trade Representative Jamieson Greer's strategy to transition USMCA into annual reviews conditioned on policy concessions from Mexico and Canada. If regional value content thresholds rise toward the reported 82%, that compresses capital allocation decisions for Mexican Tier 1 and Tier 2 suppliers that Indiana OEMs depend on.
What to do now: If your supply chain carries any USMCA rule-of-origin exposure, get someone working this before the next annual review sets new terms.
On August 13, AES Indiana filed a motion asking the Indiana Utility Regulatory Commission to pause all action on its pending rate case. The direct trigger is former Commissioner Andy Zay's lawsuit against Governor Braun alleging unlawful removal and gubernatorial interference in the rate case vote.
The IURC approved a $71 million rate increase in June — a minor adjustment starting July 2026, followed by an estimated $8.50 per month residential increase in January 2027. Reconsideration petitions filed July 7 by the Office of Utility Consumer Counselor and Citizens Action Coalition are still pending. If the IURC does not act by September 8, those petitions are automatically denied.
For large industrial customers in AES Indiana's service territory, the stakes are specific. Walmart and Rolls-Royce negotiated directly with AES Indiana in October 2025, securing approximately a 4.12% rate increase versus 6.51% for residential customers. A reopened or reversed rate case could unwind that preferential spread ahead of Phase 2 in January. Governor Braun has now appointed four of five IURC seats since December 2025. Every other Indiana utility — NIPSCO, I&M, Duke Energy Indiana, and Vectren — is watching this proceeding before filing their own future rate cases.
What to do now: If you are in AES Indiana's service territory, model your Phase 2 cost exposure at the full $8.50 residential rate now. Do not wait for September 8 to tell you which direction this goes.
Ten charter employers — including Eli Lilly, Novartis, Boston Scientific, and Bloomington-based Singota Solutions — have launched the Life Sciences Industry Talent Association, with a pilot apprenticeship for a high-school-diploma-accessible biomanufacturing role set for fall 2027.
One dynamic worth watching in any employer-led occupational standard: the largest employers at the table typically shape the standard most, and that standard then becomes the benchmark their facilities are measured against. Smaller ITA members and non-member manufacturers with similar roles should assess whether they want input before the standard is filed with the U.S. Department of Labor.
Q: What does Amazon's January diesel event mean for my facility if I'm on I&M's grid?
A: It signals that hyperscale data center load growth is already stressing the I&M system enough to trigger a federal emergency curtailment order — and that the cost consequences, including surging PJM capacity charges and future rate base additions from new generation, flow to all I&M customers. Check whether your current power contract has any protection against rate base cost recovery tied to data center load growth; most do not.
Q: The AES Indiana settlement gave large industrial customers a lower rate increase than residential customers. Is that at risk if the rate case gets reopened?
A: Yes. The October 2025 settlement terms that produced the approximately 4.12% industrial increase versus 6.51% residential increase were negotiated as part of the rate case the IURC approved in June. If reconsideration petitions succeed or the Zay lawsuit creates grounds for reopening, those terms are back on the table ahead of the January 2027 Phase 2 increase.
Q: Does Samsung SDI's pivot away from EVs affect Indiana automotive suppliers?
A: It removes a $3.5 billion EV battery facility from the Indiana automotive supply ecosystem. The 1,700 jobs projected for that plant are now tied to grid-scale energy storage demand cycles rather than automotive production, and Samsung SDI is now a competitor to, not a customer of, the EV supply chain Indiana OEMs built assumptions around.
Q: What happens on September 8 in the AES Indiana rate case?
A: If the IURC has not acted on the reconsideration petitions filed July 7 by the Office of Utility Consumer Counselor and Citizens Action Coalition, those petitions are automatically denied. That locks the current approved rate structure in place — unless the constitutional challenge in the Zay lawsuit ultimately forces a different outcome.
Indiana's grid economics, its utility regulatory structure, and its manufacturing supply chains are all repricing at the same time — and none of them are doing it independently. The operators who map their exposure now will have options that those who wait for certainty will not.
For context on how AES Indiana's rate case has developed and what prior IURC decisions have meant for industrial customers, see IURC Loses a Second Commissioner as the AES Indiana Utility Rate Case Heads to Rehearing and AES Indiana Rehearing Filed: Four Developments Hitting Indiana Manufacturer Costs Now.
For how capacity auction costs and fuel adjustment charges land on your bill, see Fuel Adjustment Charges: What Indiana C&I Operators Need to Know About This Line Item on Your Electric Bill.