TNMP TDU delivery charges for homes are $7.56 a month plus 7.7710 cents per kWh as of October 1, 2026, according to the Public Utility Commission of Texas (PUCT). At 1,000 kWh, that's $85.27 a month for delivery alone, the highest of the five delivery utilities on the PUCT's residential table. The rates from TNMP's rate case took effect September 13, and December 2026 bills add a one-month surcharge on top.

The September 13 change was the second step in two weeks. Texas-New Mexico Power's per-kWh charge rose from 6.4665 to 7.4022 cents on September 2, then to 7.7710 cents on September 13, according to BKV Energy's historical TDU rate table. Together the two steps add $12.75 a month at 1,000 kWh. Only $3.40 of that came from the rate case itself.

Key takeaways

• Today's rate: TNMP's residential delivery charge is $7.56 a month plus 7.7710 cents per kWh, or $85.27 at 1,000 kWh (as of October 1, 2026, per the PUCT).
• Highest on the table: At 1,000 kWh, the same PUCT table lists AEP Texas Central at $60.42, AEP Texas North at $59.27, CenterPoint at $70.23 and Oncor at $64.36. Oncor's October 4 increase took it to $72.73, still $12.54 below TNMP.
• Two September steps: Delivery at 1,000 kWh went from $72.52 to $81.87 on September 2, 2026, then to $85.27 on September 13. The rate case accounts for the $3.40 second step.
• The stacking trap: As of September 13, 2026, TNMP's base distribution charge is 2.035 cents higher per kWh, but the total per-kWh charge rose only 0.3688 cents, and the fixed monthly charge fell $0.29.
• December surcharge: A one-month rider called Rider IS adds the gap between final rates and the rates billed from May 22 to September 12, 2026. The PUCT found TNMP's amended calculation in compliance on October 13, 2026, in Docket No. 59973.

What are TNMP TDU delivery charges?

TNMP TDU delivery charges are the PUCT-approved fees Texas-New Mexico Power Company collects to carry electricity over its poles, wires and meters to homes and businesses in its service area. TNMP is a transmission and distribution utility (TDU), not a retail electric provider. Every provider in TNMP territory passes the same delivery charges through to its customers.

TNMP says it delivers power to more than 280,000 homes and businesses in Texas, from its headquarters in Lewisville. Its service area spans three regions, North-Central Texas, Gulf Coast Texas and West Texas, according to TNMP's service area page. Outages and meter problems go to TNMP at 888-866-7456, not to your electricity provider.

For a home, the TNMP delivery charge has two parts:

• A fixed monthly charge of $7.56: a $1.70 customer charge plus a $5.86 metering charge.
• A per-kWh charge of 7.7710 cents: a stack of base distribution rates plus riders the PUCT approves separately.

TNMP's sister utility in New Mexico, PNM, is regulated by the New Mexico Public Regulation Commission and has no role in Texas delivery charges. The broader guide to TDU delivery charges for Oncor, CenterPoint, AEP and TNMP explains how each line item appears on a Texas bill.

How much are TNMP delivery charges compared with other Texas utilities?

TNMP charges more to deliver power than any other utility on the PUCT's residential table. At 1,000 kWh, TNMP delivery costs $85.27 a month as of October 1, 2026, compared with $59.27 to $70.23 at the other four utilities on that table. TNMP also has the largest fixed monthly charge.

Source: PUCT residential TDU delivery charges, as of October 1, 2026, read again on October 22, 2026. The PUCT table rounds the AEP per-kWh charges, so multiplying them won't reproduce the AEP totals exactly.

One update since that table: Oncor's per-kWh charge rose to 6.8673 cents on October 4, 2026, according to BKV Energy's rate history. That puts Oncor at $72.73 at 1,000 kWh. TNMP still costs $12.54 a month more than Oncor and $15.04 a month more than CenterPoint. Over a year at 1,000 kWh a month, that's about $150 more than Oncor and about $180 more than CenterPoint, for delivery alone.

The fixed charge matters most for small homes and apartments. TNMP's $7.56 compares with $4.90 at CenterPoint, $4.06 at Oncor and $3.24 at both AEP Texas utilities. It applies every month, whatever you use.

Why did TNMP delivery charges change twice in September 2026?

TNMP delivery charges changed twice because two separate updates landed 11 days apart. On September 2, 2026, the per-kWh charge rose from 6.4665 to 7.4022 cents, before the rate case took effect. On September 13, the rate case rates replaced that stack, taking the per-kWh charge to 7.7710 cents and trimming the fixed charge from $7.85 to $7.56.

The TNMP September Timeline shows which rate applied when:

Dates and rates come from BKV Energy's historical TDU table. The PUCT's September 1, 2026 TNMP rate report lists the same 7.4022-cent rate and the $81.87 total at 1,000 kWh, and the PUCT's October 1 table confirms the September 13 row.

The September 2 step was the bigger of the two: $9.35 a month at 1,000 kWh, a 14.5 percent jump in the per-kWh charge. It came before TNMP's new base rates applied, so it reflects an update to other pieces of TNMP's per-kWh stack rather than the rate case.

That timing explains why TNMP numbers online disagree. Pages written in early September show $81.87 at 1,000 kWh, which was current for only 11 days. Some AI-generated answers fold both steps into a single increase of about $12.75. The rate case accounts for $3.40 of it.

What did the PUCT approve in TNMP's rate case?

The PUCT approved a settlement of TNMP's rate case, Docket No. 58964, on July 30, 2026. TNMP described the result as a modest increase of about 1% to delivery rates, in its first rate filing in seven years. New rates apply to bills rendered 45 days after the order, which matches the September 13, 2026 effective date on TNMP's current tariff.

TNMP's "about 1%" describes delivery rates across its whole system. For a residential customer at 1,000 kWh, the September 13 step was about 4.2 percent, so the household effect is larger than the headline figure.

Source: EnergyChoiceMatters, July 31, 2026.

The settlement created or resumed three riders that retail providers pass through:

• Rider HCRF (Hurricane Cost Recovery Factor) recovers $20.5 million in Hurricane Beryl restoration costs, spread over five years, according to TNMP's settlement announcement. At 0.0882 cents per kWh, it adds about $0.88 a month at 1,000 kWh.
• Rider RCE (rate case expense) recovers the cost of the case itself, at 0.0180 cents per kWh, or about $0.18 a month at 1,000 kWh.
• Rider IS (interim surcharge) is the December charge covered below.

TNMP's announcement quoted the settlement as saying the agreement "is in the public interest... and will conserve the parties' and the public's resources." The deal was signed by consumer groups, cities, large customers and PUCT Staff, according to TNMP.

Why didn't a 2-cent base rate increase add 2 cents to your bill?

A 2-cent base rate increase didn't add 2 cents because other charges came down at the same time. TNMP's residential distribution system charge rose 2.035 cents, from 2.5670 to 4.6020 cents per kWh. The total per-kWh delivery charge rose only 0.3688 cents, from 7.4022 to 7.7710 cents, because charges TNMP was already collecting through riders were reset or folded into the new base rate.

The arithmetic is simple. The new base charge plus the two new per-kWh riders added about 2.14 cents. For the total to rise only 0.3688 cents, the rest of the stack had to fall about 1.77 cents.

Stacking the base increase on top of the old total would put TNMP's per-kWh charge near 9.44 cents, or about $101.93 at 1,000 kWh. That overstates the September 13 increase about six times, $20.06 versus the real $3.40. The PUCT's October 1 table lists 7.7710 cents and $85.27. The same trap showed up with CenterPoint's September 30 rider change, as the Houston CenterPoint delivery charge breakdown explains.

The fixed side moved the other way. The customer charge rose 57 cents and the metering charge fell 86 cents, so the fixed monthly charge dropped 29 cents. The whole increase sits in the per-kWh charge, so bigger homes absorb more of it:

• 500 kWh: +$1.56, from $44.86 to $46.42
• 1,000 kWh: +$3.40, from $81.87 to $85.27, about 4.2 percent
• 2,000 kWh: +$7.09, from $155.89 to $162.98

What is the December 2026 Rider IS surcharge on TNMP bills?

Rider IS is a one-month interim surcharge on December 2026 TNMP bills. It collects the difference between TNMP's final rates and the rates it actually billed from May 22 through September 12, 2026. TNMP's final residential rates are higher than the rates billed during that window, so for residential customers Rider IS is expected to be a charge rather than a credit.

TNMP didn't put interim rates into effect while the case was pending. EnergyChoiceMatters reporter Paul Ring summed up the result: "Rider IS essentially grants TNMP the revenues it would have received under interim rates without having implemented interim rates prior to a final order."

The PUCT set the surcharge in Docket No. 59973:

• July 9, 2026: The PUCT opens the compliance docket for Rider IS.
• September 21, 2026: TNMP files its surcharge calculation.
• October 2, 2026: TNMP files an amended calculation.
• October 12, 2026: Commission Staff files its recommendation. Staff's memo says TNMP asked to recover a net $2,310,999 from ratepayers in December 2026, using estimated December billing units.
• October 13, 2026: Order No. 4 finds the amended filing in compliance and keeps the docket open.
• October 20, 2026: Order No. 5 requires a procedural schedule for the next stage.

Three details matter for households:

• The amount: The residential per-kWh rate appears in TNMP's October 2 amended filing, approved on October 13. Your provider passes the approved amount through and will show it on your December bill.
• Not every class pays more: Staff's memo describes "interim surcharge and refund rates" by customer class. The $2,310,999 is a net figure across all classes, not the residential total.
• It ends after one month: After December, TNMP must file a report confirming it stopped collecting and showing any under- or over-recovery by class.

Oncor customers saw a similar interim-rate rider this summer, covered in the Oncor August 1 delivery charge breakdown. December is also when winter usage starts to climb, which the ERCOT December 2026 winter outlook puts in context.

Does a fixed-rate plan protect you from TNMP delivery charge changes?

A fixed-rate plan doesn't fully protect you from TNMP delivery charge changes. Texas rule 16 TAC §25.475 lets a fixed-rate product's price change "solely to reflect actual changes in TDU charges," along with certain ERCOT fees and new legal costs. So a TNMP rate change or rider, including Rider IS, can reach a fixed-rate bill.

How it shows up depends on how your plan bills delivery:

• Separate delivery line: If your bill shows TNMP charges on their own line, the new rates and the December Rider IS appear there directly.
• One all-in price: If your plan quotes a single price per kWh, check its Terms of Service and Electricity Facts Label (EFL) for the TDU pass-through language.
• EFL timing: The average prices on an EFL use the delivery rates in effect when the label was issued. A TNMP-area label issued before September 13, 2026 reflects the old delivery rates.

The walkthrough on how to read a Texas Electricity Facts Label covers the six numbers to check before you sign.

What changed for TNMP move-in and reconnect fees?

The rate case settlement also reset TNMP's discretionary service charges. Moving into a home with an existing standard meter got cheaper, while a new standard meter and service at premium locations got more expensive.

Source: EnergyChoiceMatters, July 31, 2026, summarizing the Docket No. 58964 settlement.

Your provider passes these TNMP fees through when the service is performed. For a typical move into a home with a working standard meter, the TNMP move-in charge is now $1.00.

When will TNMP customers see Blackstone rate credits?

TNMP customers won't see Blackstone rate credits until the deal closes, and it hasn't closed. The PUCT approved Blackstone Infrastructure's purchase of TNMP's parent company, TXNM Energy, with $45 million in rate credits, TNMP said on February 6, 2026. Those credits begin only after closing, so they won't offset December's Rider IS.

As of TXNM Energy's July 17, 2026 announcement, filed with the SEC, the deal had approval from the PUCT, the Federal Energy Regulatory Commission and the Federal Communications Commission, plus federal antitrust clearance. It still needed the Nuclear Regulatory Commission and the New Mexico Public Regulation Commission. TXNM estimated closing in the first half of 2027 and extended the merger agreement's end date to May 31, 2027.

"We remain committed to our proposed partnership with Blackstone Infrastructure because it is critical to TXNM Energy's long-term ability to provide clean, affordable and reliable power to the customers we serve," said Don Tarry, President and CEO of TXNM Energy, in that announcement.

Why are Texas delivery charges rising?

Texas delivery charges are rising because utilities are spending on grid growth and storm recovery, and riders are how that spending reaches bills between rate cases. TNMP's Hurricane Beryl rider is one example. The Texas Energy Poverty Research Institute (TEPRI) reported that ERCOT residential electricity rates rose about 30 percent since 2021. TEPRI projected a further 29 percent increase from 2025 to 2030, from 15.33 to 19.75 cents per kWh (as of December 9, 2025), driven mainly by planned transmission and distribution investment.

Demand growth sits behind much of that investment. "Texas is continuing to grow beyond data centers significantly," Thomas Gleeson, chair of the Public Utility Commission of Texas, said in July 2026, as reported by the Texas Tribune.

David Kinchen, Chief Operating Officer at Energy Ogre, put the household effect plainly in his Q1 2026 Texas market update: "Delivery fees are rising regardless of your provider."

TNMP's share of a bill shows why. The latest U.S. Energy Information Administration Electric Power Monthly put the average Texas residential price at 15.88 cents per kWh for July 2026. At 1,000 kWh, TNMP delivery works out to about 8.5 cents per kWh by itself, more than half of that statewide all-in average, before any supply charge.

The TNMP Three-Date Bill Check

The TNMP Three-Date Bill Check is a quick way to see which TNMP delivery rate your bill used and what's still coming. You need your bill's service dates, its bill date and your kWh.

To check the math, multiply your kWh by the per-kWh charge for your row and add the fixed monthly charge. At the current rate, that's your kWh times 7.7710 cents, plus $7.56. If the delivery line doesn't match and your provider can't explain the gap, the guide to disputing an electric bill in Texas walks through the next steps.

What can TNMP households do now?

TNMP households can't shop away delivery charges, so the levers are the supply rate, usage and timing:

• Compare plans at your real usage. Delivery is identical for every provider in TNMP territory, so the difference between plans is the supply side. Compare EFL average prices at 500, 1,000 and 2,000 kWh, and prefer labels issued after September 13, 2026.
• Budget for December. Expect the Rider IS charge on one bill, on top of higher winter usage.
• Trim kWh where it's easy. Every kWh you avoid saves 7.771 cents in TNMP delivery alone (as of October 1, 2026), before your supply rate.
• Time your renewal. If your contract ends this winter, the guide to the best time to renew an electricity contract in Texas explains how to plan it.

Frequently asked questions

Are TNMP delivery charges the same with every electricity provider?

Yes. TNMP delivery charges are PUCT-approved and passed through at the same amount by every retail electric provider in TNMP territory. For the same usage, the TNMP delivery cost is identical no matter which company bills you.

When did TNMP's new delivery rates start?

TNMP's rate case rates apply to bills rendered on or after September 13, 2026, 45 days after the PUCT's July 30 order in Docket No. 58964. A separate per-kWh increase took effect earlier, on September 2, 2026.

How do I find the TNMP December 2026 surcharge amount?

The residential Rider IS rate is set in TNMP's October 2, 2026 amended filing, which the PUCT found in compliance on October 13 in Docket No. 59973. It applies to December 2026 bills only. Check the delivery or TDU line on your December bill, or ask your provider for the rate it's passing through.

Is TNMP the most expensive delivery utility in Texas?

Among the five utilities on the PUCT's residential TDU table, yes. At 1,000 kWh, TNMP delivery costs $85.27 as of October 1, 2026, compared with $72.73 for Oncor after its October 4 increase and $70.23 for CenterPoint.

What is Rider HCRF on a TNMP bill?

Rider HCRF is TNMP's Hurricane Cost Recovery Factor. It recovers $20.5 million in Hurricane Beryl restoration costs over five years, at 0.0882 cents per kWh for residential customers, about $0.88 a month at 1,000 kWh.

Can switching providers lower TNMP delivery charges?

No. Every provider passes through the same TNMP delivery charges. Switching can lower the supply part of your bill, so compare plans by the EFL average price at your usage rather than the energy charge alone.

The bottom line

TNMP delivery now costs $85.27 a month at 1,000 kWh as of October 1, 2026, the highest on the PUCT's table, after two September increases worth $12.75 combined. The rate case itself added $3.40, and a one-month Rider IS charge lands on December bills. Rate credits from the Blackstone deal wait on a closing that TXNM expects in the first half of 2027.

Delivery rates in this article come from the PUCT residential TDU table as of October 1, 2026, the PUCT's September 1, 2026 TNMP rate report and BKV Energy's historical TDU table, as of the dates shown. Plan details and rates subject to change, and an Electricity Facts Label is available for every plan.