Utility Tariff Analysis · Updated September 2026

Evergy's Special High Load Factor Market Rate and Large Load Power Service: What It Means for AI Data Centre Siting in Missouri

75 MW minimum demand (Evergy Large Load Power Service) is governed by Evergy Missouri Metro's approved Special High Load Factor Market Rate tariff, Evergy Metro and Evergy Missouri West's Large Load Power Service (LLPS) Rate Plan for customers with a 75 MW minimum demand, or Ameren Missouri's separately approved large-load rate structure.

Evergy's Special High Load Factor Market Rate and Large Load Power Service — AI data centre infrastructure

Evergy's Special High Load Factor Market Rate and Large Load Power Service

MO

Evergy / Ameren Missouri

EO-2023-0022; EO-2025-0154; ET-2025-0184

Regulatory docket / filing reference

75 MW minimum demand (Evergy Large Load Power Service)

Who the tariff applies to

75 MW minimum demand (Evergy Large Load Power Service) is governed by Evergy Missouri Metro's approved Special High Load Factor Market Rate tariff, Evergy Metro and Evergy Missouri West's Large Load Power Service (LLPS) Rate Plan for customers with a 75 MW minimum demand, or Ameren Missouri's separately approved large-load rate structure.

Also active in Missouri: Ameren Missouri is serving a $15 billion Google data centre project in New Florence, with Google contracting to bring more than 1,000 MW of new generation to the state and working with Ameren on an additional 500 MW.

Named Projects Already Underway

CustomerLocationDetails
GoogleNew Florence, MO$15 billion data centre project; Google has contracted to bring more than 1,000 MW of new generation to Missouri

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 Evergy / Ameren Missouri and the relevant state public utility commission before relying on any figure for a capital decision.

Weighing Missouri 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 centre cost configurator — it applies each jurisdiction's actual power rate, tax treatment and large-load tariff rules to the same seven build configurations.

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 centre 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.

Frequently Asked Questions

What is Evergy's Special High Load Factor Market Rate and Large Load Power Service?

75 MW minimum demand (Evergy Large Load Power Service) is governed by Evergy Missouri Metro's approved Special High Load Factor Market Rate tariff, Evergy Metro and Evergy Missouri West's Large Load Power Service (LLPS) Rate Plan for customers with a 75 MW minimum demand, or Ameren Missouri's separately approved large-load rate structure.

Why did Evergy / Ameren Missouri 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 centres, is paid for by those customers rather than spread across the general rate base of residential and small commercial ratepayers.

What large data centre projects are already active in Missouri?

Ameren Missouri is serving a $15 billion Google data centre project in New Florence, with Google contracting to bring more than 1,000 MW of new generation to the state and working with Ameren on an additional 500 MW.

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

No. Evergy's Special High Load Factor Market Rate and Large Load Power Service sits above Evergy / Ameren Missouri'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 Missouri data centre build against this tariff and other states?

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