Texas-New Mexico Power (TNMP)

What Texas-New Mexico Power (TNMP) does

Texas-New Mexico Power (TNMP) is a regulated electric transmission and distribution (T&D) utility serving more than 280,000 homes and businesses across 20+ counties in Texas, headquartered in Lewisville with approximately 400 employees and five regional construction centers (Fort Stockton, Pilot Point, Friendswood, Texas City, Pecos). The company constructs, maintains, and operates the physical high-voltage grid — including 345-kV and 138-kV transmission lines, substations, and advanced metering infrastructure — and delivers electricity from generators to end-use customers on behalf of Retail Electric Providers (REPs) operating in Texas's deregulated retail market. TNMP is a wholly-owned subsidiary of TXNM Energy, Inc. (NYSE: TXNM, formerly PNM Resources), which entered an agreement in 2024 to be acquired by Blackstone Infrastructure, with Texas regulatory approval received in February 2026.

The company's core product is regulated T&D service authorized by the Public Utility Commission of Texas, supplemented by a layered suite of energy efficiency programs (Load Management, Commercial Market Transformation Program, High-Performance Homes, Low Income Weatherization, Standard Offer Programs), customer-facing digital tools (Online Outage Map, Outage Notification System with Spanish-language support, REP Portal), and community programs (TNMP Power Grants, PNM | TNMP Foundation). Revenue is earned through PUCT-approved regulated rates reset via general rate reviews, with capital deployment under the 2025-2027 System Resiliency Plan approved in March 2025. In April 2026 TNMP signed a USD 3 million 900 MHz spectrum agreement with Anterix to deploy a mission-critical private wireless network for grid modernization, and the company is actively partnering with Oncor and AEP Texas on multi-county transmission buildouts in West Texas.

Name

Texas-New Mexico Power (TNMP)

Legal name

Texas-New Mexico Power Co.

Website

https://tnmp.com

Company type

Private

Founded year

1934

Operating status

Operating

Headcount range

251–500 employees

Short description

Texas-New Mexico Power is a regulated electric transmission and distribution utility serving more than 280,000 homes and businesses across 20+ Texas counties, operating the wires infrastructure of the Texas deregulated market as a subsidiary of TXNM Energy.

Ownership category

akta.pro rank

Product category

Regulated Electric Transmission and Distribution Utility

NAICS

Electric Power Transmission, Control, and Distribution (22112), Electric Power Generation, Transmission and Distribution (2211), Utilities (221)

SIC

Electric Services (4911), Electric, Gas & Sanitary Services (4900)

akta.pro primary industry

National & Regional TSOs (ISO/RTO/Grid Operators) (EUADAAAA)

Keywords

• Electric transmission services
• Distribution utility services
• Regulated power delivery
• Grid infrastructure operations
• Energy efficiency programs

Headquarters

HQ city

Lewisville

HQ country

United States

HQ region

North America

Offices7 records

Markets served

GTM type

B2B and B2C

Offering type

Services

Cost components

Infrastructure, Operations, Personnel, Technology or R&D, Supply Chain

Revenue model

1. Transmission and Distribution Services: TNMP operates as a regulated transmission and distribution (T&D) utility in Texas. It constructs, maintains, and operates power lines and related infrastructure, delivering electricity from power generators to end-use customers on behalf of retail electric providers. Revenue is earned through regulated rates approved by the Public Utility Commission of Texas (PUCT).
2. Grid Services and Resiliency Projects: Capital investment programs such as the 2025-2027 System Resiliency Plan for infrastructure upgrades, modernization, and grid hardening projects.

Pricing tiers

Go-to-market motion2 records

Distribution channels1 record

Marketing channels6 records

Core offering

TNMP is a regulated electric transmission and distribution utility that constructs, operates, and maintains power lines, substations, and grid infrastructure to deliver electricity to over 280,000 homes and businesses across Texas. The company operates as the wires company in Texas's deregulated market, delivering power from generators to end-use customers on behalf of retail electric providers (REPs) that handle retail billing. Revenue is earned through regulated rates approved by the Public Utility Commission of Texas.

Product overview

TNMP is a regulated electricity transmission and distribution utility serving over 280,000 homes and businesses across Texas, headquartered in Lewisville with operations in more than 20 communities. The company operates a single unified regulated utility service as a subsidiary of TXNM Energy, supplemented by energy efficiency programs and customer-facing digital tools. The core product is electricity transmission and distribution, supported by the REP Portal for retail electric providers, the Outage Notification System and Online Outage Map for customer communication, and various Energy Efficiency programs (Load Management, Commercial Market Transformation Program, High-Performance Homes, Low Income Weatherization, Res/HTR SOPs). In 2026, TNMP launched a 900 MHz private wireless network in partnership with Anterix for grid modernization under its System Resiliency Plan.

Differentiator

Problem solved

Functional benefit

Products and services

• Electricity Transmission and Distribution Service Core regulated utility service providing electricity transmission and distribution to over 280,000 homes and businesses across Texas. TNMP constructs and maintains power lines and substations, coordinates new service connections, manages meters, and responds to outages, delivering electricity from generators to end-use customers on behalf of retail electric providers.
• Load Management Program
• Commercial Market Transformation Program (CMTP)
• High-Performance Homes Program
• Low Income Weatherization Program
• Residential and Hard-to-Reach Standard Offer Programs (Res/HTR SOPs)
• REP Portal
• Outage Notification System
• Online Outage Map
• 900 MHz Private Wireless Network
• TNMP Power Grants

Quantifiable outcome

• 280,000+ homes and businesses served across Texas
• +2 more outcomes

Named customers3 records

Segments4 records

Ideal customer profiles4 records

Technology focussed No

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Integration2 records

Feature3 records

Partnerships

Four partnerships are on record, tiered core and major.

• AnterixcoreTechnology or Integration · 1 April 2026Anterix signed a USD 3 million private wireless spectrum deal with TNMP to enable the utility to deploy a mission-critical private wireless network using 900 MHz spectrum for grid modernization. The agreement is part of TNMP's 2025-2027 System Resiliency Plan and supports faster outage response, real-time infrastructure monitoring, and integration of advanced energy technologies for the utility's over 280,000 homes and businesses.
• TXNM Energy (formerly PNM Resources)coreOthersTNMP is a wholly-owned subsidiary of TXNM Energy, Inc. (formerly PNM Resources). In 2024, the holding company changed its name from PNM Resources to TXNM Energy. In 2025, TXNM Energy entered an agreement to be acquired by Blackstone Infrastructure, with Texas regulatory approval received in February 2026.
• Oncor Electric Delivery CompanymajorStrategic or Co-development PartnerTNMP is partnering with Oncor Electric Delivery Company LLC to develop new transmission infrastructure, including the Dry Lake to Faulkner double-circuit 345 kV transmission line project in Reeves County. Both companies are filing joint applications with the PUCT.
• AEP TexasmajorStrategic or Co-development PartnerTNMP and AEP are filing joint applications with the PUCT for transmission line projects including the Faulkner-Solstice 345 kV double circuit transmission line and Faulkner-Cryo 138 kV transmission line in Reeves and Pecos counties.

Scale indicators7 records

Recent moves11 records

Expansion highlights6 records

Direct peers

• Oncor Electric Delivery Company: Texas's largest regulated T&D utility, serving more than 4 million customers across the state. Oncor is a direct peer with substantially overlapping Texas service territory and joint transmission projects with TNMP, and is similarly regulated by the PUCT.
• CenterPoint Energy (Houston Electric): Operates a regulated electric T&D utility serving the Houston metropolitan area as wires-only under Texas's deregulated market. Like TNMP, it is regulated by the PUCT, owns transmission/distribution assets, and earns revenue via regulated rates while REPs handle retail billing.
• AEP Texas: AEP's Texas regulated T&D subsidiary serving customers in southern and western Texas. AEP Texas files joint PUCT applications with TNMP on transmission projects (Faulkner–Solstice, Faulkner–Cryo), making it a direct peer in the same regulatory framework and geography.
• Public Service Company of New Mexico (PNM): TNMP's sister company under TXNM Energy (formerly PNM Resources). PNM is a vertically integrated regulated utility serving New Mexico, providing a like-for-like comparison for TNMP's regulated wires-only model but with a vertically integrated structure.

Broad incumbents

• Xcel Energy: A multi-state regulated electric and gas utility holding company with T&D operations across multiple states. Comparable as a regulated wires-business investor model with a broader territory and diversified regulatory exposure, though it also includes generation.
• Evergy: Multi-state regulated electric utility serving Kansas and Missouri with significant T&D operations. Comparable as a regulated rate-base utility whose earnings model is anchored to capital deployment and authorized returns, like TNMP.
• Duke Energy: One of the largest US regulated electric utilities with extensive transmission and distribution operations across multiple states. Comparable as a large-cap, multi-jurisdiction regulated utility investing in grid modernization with rate-base growth economics similar in nature to TNMP's.
• Southern Company: Large US regulated electric utility holding company with substantial T&D operations across the Southeast. Comparable as a regulated utility pursuing large-scale grid modernization and transmission build-outs with similar rate-base compounding economics.
• Dominion Energy: Multi-state regulated utility with significant electric T&D operations and grid-modernization programs. Comparable as a regulated wires utility pursuing analogous resiliency, transmission, and decarbonization capex programs under state-level regulatory oversight.

Others

• Anterix: Holds the 900 MHz spectrum licenses that TNMP uses for its private wireless network under a USD 3M agreement. Comparable as a closely linked technology/infrastructure partner enabling TNMP's grid-modernization roadmap, rather than a competing utility.

Market position

Strengths4 records

Weaknesses5 records

Competitive moat5 records

Key risks6 records

Key highlights7 records

Customer concentration

• Xx.com/tnmp
• Facebookfacebook.com/texasnewmexicopower
• LinkedInlinkedin.com/company/texas-new-mexico-power

Compliance2 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Texas-New Mexico Power (TNMP)