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Epex Home Performance
Solar & Energy11 min

PNM Net Metering in New Mexico: How Solar Buyback Works

By TJ · Epex Home Performance

PNM offers true retail-rate net metering: every kilowatt-hour your solar panels export to the grid earns a bill credit equal to what you pay to buy electricity — roughly $0.15–$0.16 per kWh in Albuquerque. Unused credits roll forward month to month, and any remaining balance is reconciled at your annual true-up date. That one-to-one exchange rate is what makes solar economics work in New Mexico — and it's protected by state law.


What Is Net Metering and How Does PNM's Program Work?

Net metering is the billing arrangement that makes rooftop solar financially viable. Instead of generating power you can't use and giving it away, your meter effectively spins backward when your panels produce more than your home consumes. PNM records that surplus as a kWh credit, then applies those credits against future bills when your home draws more from the grid than your panels produce — at night, on cloudy days, or during high-AC months.

PNM operates true net metering, not "net billing" or "net energy compensation." The distinction matters enormously. Under net billing (used by some utilities in other states), exported power is credited at a lower wholesale or "avoided cost" rate — often 3–5 cents per kWh — instead of the retail rate you actually pay. PNM customers in Albuquerque, Rio Rancho, Santa Fe, and the rest of PNM's territory receive credits at the full retail rate, according to EnergySage's 2026 New Mexico guide. That's roughly three to five times more valuable than what net-billing states offer.

The mechanics in plain language:

  1. Your solar panels produce power throughout the daylight hours.
  2. Any electricity your home uses immediately reduces what you draw from the grid.
  3. Any surplus flows to the grid and is logged as a credit on your PNM account at the current retail rate.
  4. Each month's bill is the net of what you consumed from the grid minus the credits you earned — hence "net metering."
  5. If credits exceed charges in a given month, the balance carries forward to the next bill.

New Mexico's net metering program is grounded in statute. The Renewable Energy Act (NMSA 1978 § 62-16) and New Mexico Public Regulation Commission (NMPRC) rules require PNM and other investor-owned utilities in the state to offer net metering to qualifying customer-sited systems. That legal protection means PNM cannot unilaterally roll back the program the way Arizona (APS) and California (NEM 3.0) have already done.


How PNM Credit Rollover and the Annual True-Up Work

This is the part most homeowners misunderstand — and getting it right is key to sizing your system correctly.

Monthly rollover: Credits that exceed your bill in any given month do not expire. They accumulate on your account and carry forward indefinitely. A well-sized system in Albuquerque typically over-produces in spring (March through May), when days are long and AC loads haven't spiked yet. Those banked credits then offset the large summer and winter bills when your panels can't keep pace with cooling or heating demand.

Annual true-up: PNM reconciles your account once per year — at the anniversary of your interconnection date. At that point, any remaining credit balance is reviewed. Under current PNM tariff rules, any net excess generation still on the books at true-up is compensated at an avoided-cost rate (lower than retail). This is the one scenario where you lose the full retail value of your surplus — which is why proper system sizing matters. The goal is to produce roughly what you consume annually, not dramatically more.

The practical takeaway: Size your system to offset your annual consumption, not your peak summer month. A system that's just slightly smaller than your annual load (say, 95% offset) keeps you in a near-zero bill position without generating large annual surpluses you'd lose at true-up.

ScenarioMonthly treatmentAnnual true-up treatment
You use more than you produceYou pay for the net kWh at retailN/A — no surplus
You produce more than you useSurplus credited at full retail rateCarries forward
Large year-end credit balanceN/ACompensated at avoided-cost rate (below retail)
Near-zero net annual balanceMinimal bill each monthMinimal or no adjustment

The avoided-cost rate at true-up is substantially lower than retail — typically in the range of $0.03–$0.05/kWh — so chronic over-production is a poor strategy. Right-sizing with a qualified installer eliminates this risk almost entirely.


What PNM Electricity Costs in Albuquerque — and Why the Rate Matters for Solar

The retail rate is the foundation of every net metering calculation. The higher your rate, the more valuable each exported kWh becomes.

According to electricchoice.com's October 2026 data, New Mexico's average residential electricity rate is 15.06 cents per kWh — about 18% below the national average. PNM customers in the Albuquerque metro pay somewhat more: energyscout.io reports PNM's residential rate at approximately 16 cents per kWh as of early 2026, reflecting successive rate increases PNM has filed with the PRC in recent years.

That rate trajectory is important context. PNM has raised residential rates multiple times over the past five years, and analysts broadly expect continued increases as the utility retires coal generation and invests in grid infrastructure. Every time PNM's retail rate goes up, the value of your net metering credit goes up with it — your solar system becomes more valuable the longer you own it.

What this means for a typical Albuquerque system:

New Mexico's high desert delivers outstanding solar production. NREL's PVWatts data for Albuquerque shows approximately 5.5–6.5 peak sun hours per day — among the highest in the continental United States. At a PNM rate of ~$0.16/kWh, a typical 8 kW residential system producing roughly 13,500–14,500 kWh per year would offset $2,160–$2,320 in annual electricity costs — before applying any tax credits or incentives.

System sizeEst. annual production (ABQ)Annual savings at $0.16/kWh
5 kW~8,500–9,000 kWh~$1,360–$1,440
8 kW~13,500–14,500 kWh~$2,160–$2,320
10 kW~17,000–18,000 kWh~$2,720–$2,880
12 kW~20,000–21,500 kWh~$3,200–$3,440

Estimates based on NREL PVWatts production data for Albuquerque and ~$0.16/kWh PNM retail rate. Actual results vary by roof orientation, shading, panel type, and rate changes.

These ranges are exactly why a professional site assessment matters. The best Albuquerque homes for solar — south-facing roofs with minimal shade, common on the adobe and stucco ranch homes in the Northeast Heights, the South Valley, and Four Hills — will land at or above the high end of these ranges.


New Mexico Solar Incentives That Stack With Net Metering in 2026

Net metering determines your ongoing economics; incentives reduce your upfront cost. Here's the complete picture for homeowners buying a system outright in 2026.

The federal 30% Residential Clean Energy Credit (Section 25D) expired December 31, 2025. It is not available for homeowner-owned systems installed in 2026. Any contractor or website still advertising it for 2026 residential purchases is misinformed — verify this directly with a tax professional before signing a contract.

What is available for 2026:

1. New Mexico Solar Market Development Tax Credit (SMDTC) This is your primary tax incentive as a homeowner. Per EMNRD's program page, the SMDTC provides 10% of the purchase and installation cost of a qualifying solar photovoltaic system, up to a maximum of $6,000. The credit is applied against your New Mexico state income tax liability. Importantly, according to EnergySage's 2026 New Mexico incentives guide, the credit is refundable — meaning if it exceeds your state tax liability, you receive the remainder as a refund rather than losing it. You must apply through EMNRD's online portal before claiming it on your state return.

2. Gross Receipts Tax (GRT) Exemption New Mexico does not charge gross receipts tax (the state's equivalent of sales tax) on the purchase and installation of solar energy equipment. On a $25,000 system, the GRT exemption saves approximately $2,000–$2,200, depending on the county GRT rate.

3. Property Tax Exemption New Mexico law provides a 100% property tax exemption for the value a solar energy system adds to your home. Your assessed value increases (solar adds real resale value), but your property tax bill does not. This exemption has no expiration date under current statute.

4. Third-Party Ownership (Lease / PPA) — Section 48E If you choose to lease a system or sign a Power Purchase Agreement (PPA) rather than buy, the installer (as a commercial entity) may qualify for the federal Investment Tax Credit under Section 48E. This commercial credit can enable lower lease rates or PPA prices, though it does not flow directly to you. Ask any installer presenting a lease or PPA what their Section 48E position is — it should translate into a better rate for you.

IncentiveAmountWho claims itStackable?
NM Solar Market Development Tax Credit10% of cost, max $6,000Homeowner (state return)Yes
Gross Receipts Tax Exemption~$1,800–$2,200 on typical systemApplied at purchaseYes
Property Tax ExemptionFull exemption on added valueAutomaticYes
Federal Section 25D (30% ITC)EXPIRED Dec 31, 2025N/A for 2026N/A
Section 48E (third-party/commercial)Varies; flows to installerInstaller/lessorVia lease/PPA terms

For more detail on every state and federal incentive currently available, see our complete guide to New Mexico solar incentives in 2026.


How to Get Interconnected to PNM's Grid

Net metering only works after your system is approved and interconnected by PNM. The process is more straightforward than most homeowners expect, but it does have required steps — and your installer handles most of them.

The interconnection process:

  1. Interconnection application: Your installer submits a completed application to PNM before installation begins. PNM reviews it to ensure your system meets technical requirements and the local distribution circuit has capacity.

  2. Permit and inspection: Bernalillo, Sandoval, and Santa Fe counties all require a building permit and electrical inspection before a solar system can be energized. Your installer pulls the permit; the county inspects it.

  3. PNM approval and meter swap: Once the county inspection passes, PNM issues permission to operate (PTO) and schedules a meter exchange. Your bidirectional meter records both consumption from the grid and export to the grid.

  4. Enrollment in net metering tariff: PNM automatically enrolls your account in the appropriate net metering tariff once the bidirectional meter is installed.

Typical timeline from application to energization in Albuquerque runs 6–12 weeks, depending on PNM workload and permit turnaround times. The interconnection process itself has no direct cost to the homeowner — it is typically included in the installer's project scope.

One important size threshold: residential systems 10 kW or smaller qualify for the standard residential net metering tariff. Systems larger than 10 kW go through a slightly different review process and may be subject to different tariff terms. Most Albuquerque single-family homes are well-served by systems under 10 kW.


Frequently Asked Questions

What happens to my PNM net metering credits if I sell my house?

Net metering credits are tied to the PNM account, not to the homeowner. When you sell your home, the solar system transfers to the buyer, and the new owner establishes their own PNM account. Any banked credits at the time of sale do not automatically transfer — this is a negotiable item in the real estate transaction. Some sellers apply the credit balance against their final bill; others negotiate it into the sale terms. Discuss this with your real estate agent before closing.

Does PNM net metering apply in Rio Rancho, Santa Fe, and Corrales?

Yes. PNM is the investor-owned utility serving the Albuquerque metro area, including Rio Rancho, Corrales, parts of Los Lunas, and most of the Santa Fe market. The same retail-rate net metering tariff and rules apply across PNM's entire service territory. If you live outside PNM territory — for example, if you're served by an electric cooperative or by El Paso Electric in southern New Mexico — your net metering terms may differ.

Will PNM change or eliminate net metering?

New Mexico's net metering program is protected by the Renewable Energy Act (NMSA 1978 § 62-16), which requires investor-owned utilities to offer net metering. The NMPRC must approve any changes to the tariff. As of late 2026, there are no pending NMPRC proceedings to eliminate or significantly downgrade retail-rate net metering for existing or new customers. Unlike California and Arizona, New Mexico has not moved to reduce the export credit rate for residential solar.

How is the PNM net metering credit rate calculated?

Your credit rate equals PNM's current retail rate for the customer class you're in — typically the standard residential Schedule 1A rate, which runs approximately $0.15–$0.16 per kWh in Albuquerque as of 2026. That rate includes all applicable distribution and transmission charges that make up your standard bill. The credit is not limited to just the energy component; it reflects the full volumetric retail rate, which is what makes New Mexico's program so favorable compared to net-billing states.

Can I add battery storage and still use PNM net metering?

Yes. Pairing a solar battery storage system with your PNM-interconnected solar array does not disqualify you from net metering. Your battery charges from your panels first; excess generation after the battery is full then flows to the grid and earns the net metering credit. The main operational choice is whether to program your battery to maximize self-consumption (less exported, more resilience) or to allow more grid export during peak production. For most Albuquerque homeowners, the resilience value of stored power — especially during PNM's summer peak events and monsoon-season outages — outweighs the marginal value of exporting that energy.


Ready to See What Net Metering Means for Your Specific Roof?

Net metering turns your roof into a long-term hedge against rising PNM rates — but the actual value depends on your system size, roof orientation, current usage, and how precisely your installer sizes the system to your annual consumption. Get those numbers right from the start and you'll have near-zero bills for years.

Epex Home Performance has completed more than 4,000 solar and home performance projects across Albuquerque, Rio Rancho, Santa Fe, Los Lunas, and Corrales since 2015. Our NABCEP-certified team handles the full PNM interconnection process — permits, inspections, meter swap, and tariff enrollment — so you're earning credits as quickly as possible.

Before you commit to a system size, read our honest breakdown of whether solar is worth it in New Mexico in 2026 — then schedule your free solar assessment with Epex Home Performance when you're ready for a site-specific production estimate and payback analysis.

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