Utility Tariff Analysis · Updated September 2026

Indiana Michigan Power's Tariff I.P. and NIPSCO GenCo: What It Means for AI Data Center Siting in Indiana

September 18, 2026 6 min read Strategic Crypto Reserve Data Center Infrastructure

Large industrial and data-center load addressed under modified industrial tariffs is now covered by Indiana Michigan Power's modified industrial power tariff (Tariff I.P.), while NIPSCO has won approval to structure NIPSCO GenCo as a separate public utility and energy utility under Indiana law specifically to isolate the financial risk of serving large-load customers through contractual agreements.

Indiana at a glance: industrial power about 9.2¢/kWh (EIA-based, indexed to April 2026) · grid queue about 30 months · data center equipment tax exemption: available. Indicative figures from the SCR AI Build Configurator v1.4.0.

The Tariff Explained Model a Indiana Build Free
Indiana AI data center power map: Indiana Michigan Power's Tariff I.P. and NIPSCO GenCo large-load tariff

Indiana Michigan Power's Tariff I.P. and NIPSCO GenCo

IN

Indiana Michigan Power (AEP) / NIPSCO

46097; 46183

Regulatory docket / filing reference

Large industrial and data-center load addressed under modified industrial tariffs

Who the tariff applies to

Large industrial and data-center load addressed under modified industrial tariffs is now covered by Indiana Michigan Power's modified industrial power tariff (Tariff I.P.), while NIPSCO has won approval to structure NIPSCO GenCo as a separate public utility and energy utility under Indiana law specifically to isolate the financial risk of serving large-load customers through contractual agreements.

Also active in Indiana: Indiana's pipeline includes a 390 MW Google project in Morgan Township projected to deliver $770 million in savings to existing customers over 15 years, and an AWS campus in New Carlisle valued at $11 billion.

Indiana at a glance: large-load tariff threshold, docket and who it applies to

Named Projects Already Underway

CustomerLocationDetails
GoogleMorgan Township, IN390 MW data center project; agreement expected to deliver $770 million in savings to existing customers over 15 years
AWSNew Carlisle, IN$11 billion data center campus

Figures compiled from the Edison Electric Institute's "Large Load Projects and Tariffs" (September 2026) member-company summary and public regulatory filings. Confirm current tariff terms directly with Indiana Michigan Power (AEP) / NIPSCO and the relevant state public utility commission before relying on any figure for a capital decision.

Weighing Indiana against another state or a Canadian province with a different rate and interconnection picture entirely? Run both sides of the comparison through our licensed AI data center cost configurator — it applies each jurisdiction's actual power rate, tax treatment and large-load tariff rules to the same seven build configurations.

Named data center projects underway in Indiana Named Projects Already Underway: Indiana Michigan Power's Tariff I.P. and NIPSCO GenCo: What It Means for AI Data Center Siting in Indiana

Model This State on Your Own Site

Every figure above comes from the same power-cost and tariff dataset behind the SCR AI Build Configurator — a licensed, embeddable widget that models seven data center build configurations against all nine Canadian provinces and all 50 US states plus DC, returning capital expenditure by line item, energy cost, revenue by commercial structure, EBITDA and payback.

LicencePrice (CAD)Who it suits
Standard$4,000 / domain / yearAdvisors who need three lease-model configurations and a clipboard summary
Pro$10,000 / domain / yearConsultants who send CSV deliverables to clients and want all seven configurations
EnterpriseFrom $25,000 / year, up to 3 domainsDevelopers and EPC firms who want the model on their own cost basis with attribution removed

Not ready for an annual licence? A one-time Site Screening Report ($950, one site) runs the same model for a single build without embedding anything.

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Model a Indiana data center build in the SCR AI Build Configurator: CapEx, power cost, EBITDA and payback Model This State on Your Own Site: Indiana Michigan Power's Tariff I.P. and NIPSCO GenCo: What It Means for AI Data Center Siting in Indiana

Compare Indiana With Nearby States

Large-load rules change sharply at state lines. See how the neighbouring utilities handle data center and high-density loads before you shortlist a site.

Illinois

ComEd Rider DE
Ohio

AEP Ohio 25 MW / 85%
Michigan

Michigan GPD / D11 / LP
Kentucky

KU/LG&E EHLF tariff
All 50 State Tariffs Data Center Cost Calculator AI Build Configurations

Frequently Asked Questions

What is Indiana Michigan Power's Tariff I.P. and NIPSCO GenCo?

Large industrial and data-center load addressed under modified industrial tariffs is now covered by Indiana Michigan Power's modified industrial power tariff (Tariff I.P.), while NIPSCO has won approval to structure NIPSCO GenCo as a separate public utility and energy utility under Indiana law specifically to isolate the financial risk of serving large-load customers through contractual agreements.

Why did Indiana Michigan Power (AEP) / NIPSCO introduce this large-load structure?

To ensure the cost of new generation, transmission and distribution infrastructure built to serve very large customers, chiefly hyperscale data centers, is paid for by those customers rather than spread across the general rate base of residential and small commercial ratepayers.

What large data center projects are already active in Indiana?

Indiana's pipeline includes a 390 MW Google project in Morgan Township projected to deliver $770 million in savings to existing customers over 15 years, and an AWS campus in New Carlisle valued at $11 billion.

Does this tariff replace Indiana's standard commercial and industrial rates?

No. Indiana Michigan Power's Tariff I.P. and NIPSCO GenCo sits above Indiana Michigan Power (AEP) / NIPSCO's standard commercial and industrial rate schedules and applies specifically to customers that meet or exceed the large-load threshold described above. Smaller commercial and industrial loads continue to be billed under existing rate schedules.

How can I model a Indiana data center build against this tariff and other states?

The SCR AI Build Configurator applies Indiana's power cost, tax treatment and large-load tariff rules alongside all other US states and Canadian provinces, so a Indiana scenario can be compared line-by-line against any alternative site.