Public data · Free to use
Missouri Data Center Power Rules: Large-Load Tariffs and State Law
How Missouri’s utilities and lawmakers handle data-center-sized power requests: 2 utilities and 1 state measure, compiled from public filings, with a source on every entry.
Last checked October 22, 2026All states
Utilities
Missouri utilities and their large-load rules.
Evergy (Evergy Kansas Central, Evergy Metro, Evergy Missouri West)
KS, MO · SPP · Evergy
ApprovedNov 2025Large Load Power Service (LLPS) tariff
Kansas and Missouri regulators approved Evergy settlements requiring large users to pay at least 80% of contracted demand under long contracts with collateral.
- Applies to: Expected peak of 75 MW or more; existing customers adding 75 MW
- Pays at least 80% of contracted demand each month
- Collateral equal to two years of minimum bills
- 12-year minimum term plus optional ramp of up to five years
- Customer pays its own connection costs
Sources: Kansas Corporation Commission, News Release, November 6, 2025 (2025); Renewable Energy World (Kansas Reflector), New Kansas rules set guidelines for data centers, big power users to protect smaller customers (2025); Missouri Public Service Commission, PSC Approves Evergy Large Load Power Service Plan with Customer Protections (2025)
Ameren Missouri
MO · MISO · Ameren
ApprovedNov 2025Large Load Rate Plan (Case ET-2025-0184)
Missouri regulators approved Ameren's large-load rates, requiring big users to pay most of their contracted demand under long contracts with collateral.
- Applies to: Forecast monthly peak of 75 MW or more
- Pays at least 80% of contracted demand each month
- 12-year minimum contract plus optional five-year ramp
- Collateral equal to two years of minimum bills
- Exit fee if load leaves early
- Two years' notice to end or reduce contracted load
Sources: St. Louis Public Radio, Missouri utility regulators approve Ameren rates for data centers (2025); Missouri Public Service Commission, Large Load Tariff Fact Sheet, April 2026 (2026)
State law and regulation
Missouri laws and rulemakings.
enacted · 2025-04
Senate Bill 4 (2025)
Requires large investor-owned utilities to offer special tariffs for customers above 100 MW so their costs are not shifted to other customers.
POWER Magazine (2026); Missouri Public Service Commission (2026)
What this can and can’t tell you
The rules are public. Whether your site can get power isn’t.
Anyone could pull these filings; we compile them so they’re easy to find. Terms change often, so confirm them with the utility or the commission docket before relying on them.
Going deeper: Data Center Site Selection in Missouri
This tracker · Public, free
- A utility’s published rules for large new loads
- The same answer for every site in that utility’s territory
- What the terms are if power is available
- Compiled from filings anyone can read
A BlackForge report · Site-specific
- Whether a specific parcel can actually be served, and roughly when
- Substation headroom and the realistic connection path
- Gas, water, fiber, buildable land and zoning, checked together
- Built and refreshed for your load, your timeline and your parcels
Cite this tracker
BlackForge Data Centers. "Missouri data center power rules," Large-Load Power Tracker. Last checked October 22, 2026. https://www.blackforgedatacenters.com/data-center-power-tracker/missouri
Free to reuse under CC BY 4.0 with credit.
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