Utility Tariff Analysis · Updated September 2026

El Paso Electric's Large Power Service Tariff Updates: What It Means for AI Data Centre Siting in New Mexico

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

Large loads served under an updated Large Power Service structure are addressed through two new large-load tariffs El Paso Electric has proposed as part of its larger New Mexico rate review, both based on updates to its existing Large Power Service tariff rather than an entirely new rate class.

The Tariff Explained Model a NM Build
El Paso Electric's Large Power Service Tariff Updates — AI data centre infrastructure

El Paso Electric's Large Power Service Tariff Updates

NM

El Paso Electric (TXNM)

25-00082-UT

Regulatory docket / filing reference

Large loads served under an updated Large Power Service structure

Who the tariff applies to

Large loads served under an updated Large Power Service structure are addressed through two new large-load tariffs El Paso Electric has proposed as part of its larger New Mexico rate review, both based on updates to its existing Large Power Service tariff rather than an entirely new rate class.

Also active in New Mexico: PNM (TXNM) is serving an $800 million Meta data centre expansion in Los Lunas, with Meta working directly with PNM to match its energy and capacity requirements against clean energy resources.

Named Projects Already Underway

CustomerLocationDetails
MetaLos Lunas, NM$800 million data centre expansion project; Meta is working with PNM to match energy and capacity requirements with clean energy

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 (TXNM) and the relevant state public utility commission before relying on any figure for a capital decision.

Weighing New Mexico 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.

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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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Frequently Asked Questions

What is El Paso Electric's Large Power Service Tariff Updates?

Large loads served under an updated Large Power Service structure are addressed through two new large-load tariffs El Paso Electric has proposed as part of its larger New Mexico rate review, both based on updates to its existing Large Power Service tariff rather than an entirely new rate class.

Why did El Paso Electric (TXNM) 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 New Mexico?

PNM (TXNM) is serving an $800 million Meta data centre expansion in Los Lunas, with Meta working directly with PNM to match its energy and capacity requirements against clean energy resources.

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

No. El Paso Electric's Large Power Service Tariff Updates sits above El Paso Electric (TXNM)'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 New Mexico data centre build against this tariff and other states?

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