Utility Tariff Analysis · Updated September 2026

El Paso Electric's Schedule 27 and SWEPCO's ES-LL Contract: What It Means for AI Data Center Siting in Texas

Facilities with 75 MW or more of annual peak demand fall under El Paso Electric's new Schedule 27 High Load Factor Large Power Service, requiring an annual load factor of at least 85 percent, or SWEPCO's proposed Electric Service – Large Load Contract, applicable to any customer with 75 MW or more of contract capacity at one facility or in aggregate.

Texas at a glance: industrial power about 7.1¢/kWh (EIA-based, indexed to April 2026) · grid queue about 42 months · data center equipment tax exemption: available. Indicative figures from the SCR AI Build Configurator v1.4.0.

Texas AI data center power map: El Paso Electric's Schedule 27 and SWEPCO's ES-LL Contract large-load tariff

El Paso Electric's Schedule 27 and SWEPCO's ES-LL Contract

TX

El Paso Electric / Southwestern Electric Power Company (AEP)

59611 (El Paso Electric); 58796 (SWEPCO)

Regulatory docket / filing reference

Facilities with 75 MW or more of annual peak demand

Who the tariff applies to

Facilities with 75 MW or more of annual peak demand fall under El Paso Electric's new Schedule 27 High Load Factor Large Power Service, requiring an annual load factor of at least 85 percent, or SWEPCO's proposed Electric Service – Large Load Contract, applicable to any customer with 75 MW or more of contract capacity at one facility or in aggregate.

Also active in Texas: Texas also carries the country's single largest publicly announced project pipeline: AEP Texas alone is serving a $15 billion Lancium/OpenAI Stargate campus near Abilene and a $17 billion, 1 GW Hut8 project in Corpus Christi.

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

Named Projects Already Underway

CustomerLocationDetails
Lancium (OpenAI Stargate Project)Abilene, TX$15 billion data center campus, part of the OpenAI Stargate initiative
Hut8Corpus Christi, TX$17 billion, 1 GW data center project at the Beacon Point site

Policy Update, 1 October 2026

On 21 September 2026 the governor directed TCEQ and every state agency to halt data centre permits and approvals until a PUCT and ERCOT audit of projects seeking connection is finished; there is no fixed end date. ERCOT is tracking about 474 GW of large-load requests, roughly 90% of them data centres. The governor has said he will seek repeal of the data centre sales tax exemption and other incentives in the 2027 session, but the exemption is still law. The SCR AI Build Configurator now models a 42-month queue for Texas, up from 30.

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 El Paso Electric / Southwestern Electric Power Company (AEP) and the relevant state public utility commission before relying on any figure for a capital decision.

Weighing Texas 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.

Between El Paso Electric’s Schedule 27 and SWEPCO’s ES-LL contract, Texas large-load pricing varies a lot by utility territory — our own crypto data center in BC runs under a single province-wide rate instead.

Named data center projects underway in Texas Named Projects Already Underway: El Paso Electric's Schedule 27 and SWEPCO's ES-LL Contract: What It Means for AI Data Center Siting in Texas

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.

Model a Texas data center build in the SCR AI Build Configurator: CapEx, power cost, EBITDA and payback Model This State on Your Own Site: El Paso Electric's Schedule 27 and SWEPCO's ES-LL Contract: What It Means for AI Data Center Siting in Texas

Compare Texas 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.

Frequently Asked Questions

What is El Paso Electric's Schedule 27 and SWEPCO's ES-LL Contract?

Facilities with 75 MW or more of annual peak demand fall under El Paso Electric's new Schedule 27 High Load Factor Large Power Service, requiring an annual load factor of at least 85 percent, or SWEPCO's proposed Electric Service – Large Load Contract, applicable to any customer with 75 MW or more of contract capacity at one facility or in aggregate.

Why did El Paso Electric / Southwestern Electric Power Company (AEP) 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 Texas?

Texas also carries the country's single largest publicly announced project pipeline: AEP Texas alone is serving a $15 billion Lancium/OpenAI Stargate campus near Abilene and a $17 billion, 1 GW Hut8 project in Corpus Christi.

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

No. El Paso Electric's Schedule 27 and SWEPCO's ES-LL Contract sits above El Paso Electric / Southwestern Electric Power Company (AEP)'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 Texas data center build against this tariff and other states?

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