Commercial electricity in the TNMP zone.

TNMP is the easiest Texas delivery zone to overlook and one of the easiest to get wrong on a multi-site contract. It's small, it's scattered, and its delivery rates differ from the neighboring zones it's interleaved with — which means two of your locations a few miles apart can carry different all-in costs for the very same supplier offer. Here's what to know.

What TNMP does — and what it doesn't

TNMP is the TDSP for its patchwork of Texas territories. It owns and operates the wires, poles, and meters within its footprint, and it's responsible for outages and restoration there. It does not set your rate — it charges a regulated delivery fee — and it doesn't choose your supplier. You select a retail electricity provider (REP) on the open market, and that REP sets the price you pay.

As across deregulated Texas, the delivery service is the same regardless of which REP you choose. Switching suppliers changes your price and contract, never your reliability.

What TNMP delivery charges mean for your bill

TNMP's delivery and capacity charges are PUCT-set and identical across every REP serving the zone — but they are not the same as Oncor's or CenterPoint's. That's the detail that trips up multi-site buyers: a business with one location in TNMP and another in an adjacent Oncor or CenterPoint area can receive what looks like a single supplier rate and still see different all-in costs at each meter, purely because the delivery layer differs underneath.

So in this zone especially, never compare two sites on the headline supply rate alone. Strip each location's TNMP (or neighboring-zone) delivery charge out first, then compare the supply side like-for-like.

What's specific about the TNMP territory

The scale and shape of the footprint create a few recurring issues:

• Multi-zone portfolios are common. TNMP frequently appears alongside Oncor or CenterPoint in the same company's portfolio, because its territories are interleaved with the big metros' suburbs.
• Fewer in-zone specialists. As the smallest major TDSP, TNMP has fewer suppliers built specifically around it — RFPs do better when they explicitly invite multi-zone-capable suppliers who can price every site cleanly.
• Metering and scope edge cases. Some areas — parts of the Lubbock region, for example — sit at the seam between TNMP and another utility, which can complicate contract scope and which meters belong where.

How to compare commercial offers in the TNMP zone

For a single TNMP site the method is standard; for a mixed portfolio it takes an extra step:

• Strip delivery per site. Remove each location's delivery charge — TNMP or neighboring zone — before comparing anything, so you're ranking supply cost, not delivery differences.
• Price the portfolio as one. Aggregate TNMP sites with their Oncor or CenterPoint siblings under a single competitive process to keep leverage, while letting each meter carry its correct delivery layer.
• Invite multi-zone suppliers. Make sure your bidders can serve every zone your portfolio touches, so you're not stitching together separate contracts that lose negotiating power.

Outages and reliability

For an outage in TNMP territory, call TNMP at 888-866-7456 — not your retail provider. Only the TDSP can dispatch crews and restore service, regardless of which REP bills you. Your supplier owns your contract and invoice; TNMP keeps the wires energized within its footprint.