Claire WhitakerBy Claire Whitaker

Updated November 2026

The PNM net metering program lets homeowners with rooftop solar in PNM’s New Mexico service area send extra electricity to the grid and receive credit against the power they pull back later. This guide explains how the program works, what you need before applying, and how to make sure your exported energy actually shows up on your bill.

How PNM Net Metering Credits Your Solar Exports

Under net metering, your solar system feeds power into your home first. Any surplus flows to the grid through your meter, and the meter runs backward during those periods. When your panels produce less than you use, such as at night, you draw from the grid as normal. Your bill reflects the net difference over each billing period.

Shopping for one? See our guide: PPL Net Metering Program vs Standard Grid Export: Which Should You Choose?.

The credit you earn depends on how PNM structures its tariff and how its netting works. Check your current rate schedule with PNM because credit rules and rate design can change through New Mexico Public Regulation Commission decisions. Many customers find that the credit for exports is lower than the retail rate they pay for grid power, so sizing your system to match your actual usage usually pays off better than oversizing it.

Steps to Apply for the Program

Most applications follow the same general path. Expect the utility to review your system before it grants permission to operate.

  1. Confirm your property is in PNM’s service territory and that your existing meter can handle bidirectional metering.
  2. Gather your system specifications: panel count, panel wattage, inverter model, and total DC capacity in kilowatts.
  3. Submit an interconnection application through PNM’s online portal or the forms listed on its website.
  4. Wait for PNM’s review and any required study. Smaller residential systems usually move through a faster track.
  5. Install your system and have a licensed electrician or your installer complete the wiring and inspection.
  6. Request a final inspection and sign the interconnection agreement before switching the system on.

Factors That Affect Your Credit

Several details determine how much your system returns over a year. Keep these in mind before you finalize your design.

  • System size: A system sized near your annual usage avoids large unused credit balances.
  • Orientation and shading: South-facing, unshaded roofs typically produce the most energy in New Mexico’s sunny climate.
  • Usage timing: Credits offset power used later, but how PNM handles leftover credit at year end matters for oversized systems.
  • Rate schedule: Your tariff determines the value of each kilowatt-hour you export.

A simple table can help you compare the main variables before you commit to a design:

Factor What to check Why it matters
Annual usage Last 12 months of PNM bills Guides a right-sized system
Roof direction and tilt Site survey or aerial imagery Affects total yearly output
Meter type Whether it supports net metering Required for crediting exports
Interconnection capacity PNM’s requirements for your service Limits maximum system size

Common Mistakes to Avoid

  • Installing before PNM approves the interconnection, which can delay or void your agreement.
  • Sizing the system far above your usage and then leaving credits unused.
  • Forgetting to read your bill each month to confirm exports are being credited.
  • Assuming a rate from a neighbor or online article applies to you without checking your current PNM tariff.
  • Skipping a licensed electrician for connections that require code-compliant work.

FAQ

Do I need a special meter for the PNM net metering program?

Usually yes. A bidirectional meter records power flowing both into and out of your home, and PNM will confirm whether your existing meter qualifies or needs replacing.

What happens to credits I do not use in a billing period?

Leftover credits typically carry forward, but year-end treatment depends on your current PNM tariff. Review the rate terms before you size your system.

Can I apply if I rent my home?

Generally the account holder applies, and the property owner usually must approve the installation. Confirm the requirements with PNM before starting the process.

Conclusion

The PNM net metering program can turn your rooftop solar into a steady credit on your bill when the system is sized and interconnected correctly. Start by pulling your last year of usage, confirm your meter, and review PNM’s current tariff. Consult PNM or a licensed installer before making major decisions.

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Claire Whitaker

About Claire Whitaker

Claire Whitaker is part of our editorial team and reviews and edits our home solar guides, checking product details against manufacturer specifications and owner feedback.