PNM Net Metering Explained: How Solar Credits Affect Your Albuquerque Electric Bill
PNM net metering allows qualifying solar customers to receive bill credit for the net electricity their systems send to the grid. For many Albuquerque homeowners, it is the mechanism that makes sunny periods of excess solar production useful later, when the home needs more electricity than the panels are producing.
The important word is net. Your monthly bill is not based only on how much electricity the panels generate. PNM compares the electricity associated with your home’s usage and solar generation, then bills or credits the net difference under the applicable program.
Understanding that process can help you evaluate a solar proposal, read your future PNM bill, and set realistic expectations about savings.
How Does PNM Net Metering Work?
A grid-tied solar system can move electricity in two directions:
- When the panels are producing and the home needs electricity, solar power serves the home’s demand.
- When the home needs more electricity than the system is producing, electricity comes from the PNM grid.
- When the system produces more than the home is using, the net excess can flow to the grid.
PNM reads the metering information at the end of the billing period. If the solar system produced less electricity than the customer used, PNM bills the net difference. If the system produced more than the customer used, PNM handles that net overproduction according to the size of the system’s inverter.
For the Small PV Program, defined by PNM as inverter capacity of 10 kW AC or less, net monthly overproduction is credited in kilowatt-hours to a Cumulative Renewable Energy Bank. The bank can carry energy credits into later billing periods.
Systems with more than 10 kW AC of inverter capacity fall under PNM’s Large PV Program. PNM states that net overproduction for these systems is paid monthly based on Rate 12 instead of being carried forward in the same cumulative kilowatt-hour bank.
Most homeowners should confirm which program and rate apply to their proposed design rather than assuming all PNM-connected systems are treated identically.
A Simple PNM Solar-Credit Example
Imagine a qualifying Small PV customer has the following result during one billing period:
- Home electricity associated with the net-metering calculation: 800 kWh
- Solar generation: 950 kWh
- Net overproduction: 150 kWh
In this simplified example, 150 kWh would be added to the customer’s renewable energy bank.
Now imagine a later billing period in which the home has 200 kWh more net usage than solar production. If the bank contains enough energy, banked kilowatt-hours may be removed to offset that difference.
The example is intentionally simple. An actual PNM bill may include meter details, remaining customer charges, riders, taxes, or fees. System configuration, rate schedule and the home’s real usage pattern also affect the result.
What Is the PNM Renewable Energy Bank?
PNM describes the Cumulative Renewable Energy Bank as the total kilowatt-hours a solar system has overproduced across billing periods. It is an energy balance measured in kWh, not a cash savings account.
For qualifying Small PV customers, PNM says these credits do not expire while the account remains open. That allows credits built during one part of the year to be available in later months.
This matters in New Mexico because solar production and household electricity use do not always peak at the same time. A system may create net excess during a productive month, while air conditioning, shorter winter days, cloudy weather, or a change in household usage may lead to greater grid consumption in another month.
The energy bank helps balance some of that month-to-month variation. It does not guarantee that every home will build a surplus, however. A household’s outcome depends on system size, weather, shading, equipment performance, and electricity consumption.
How to Read the Solar Information on a PNM Bill
PNM’s solar customer bill guide identifies several sections worth reviewing.
Solar energy generation
This shows the amount of electricity the solar system generated for the billing period.
Energy added to or removed from the bank
A positive balance indicates overproduction was added to the Cumulative Renewable Energy Bank. A negative amount indicates energy was removed from the bank.
Net usage
This reflects the electricity remaining after usage and solar generation are accounted for under the bill’s calculation.
Energy-bank current balance
This is the cumulative number of banked kilowatt-hours remaining after the current month’s addition or withdrawal.
Customer charge and other bill items
PNM explains that the customer charge remains the same regardless of how much electricity a customer uses. Its solar-bill guide also lists other possible items, including applicable riders, transition charges, and local franchise fees.
That is why “going solar” and “having no PNM bill at all” are not necessarily the same outcome. Solar may reduce the electricity portion of a bill substantially, but grid-connected customers can still have fixed or applicable non-energy charges.
Homeowners can review PNM’s official solar-customer bill definitions alongside their own statement.
Do PNM Solar Credits Roll Over?
For the Small PV Program, PNM states that cumulative kilowatt-hour credits do not expire while the account remains open. Credits may build during months of net overproduction and be used later when the customer’s net usage is higher.
If the customer closes the account, PNM states that remaining credits are paid under Rate 12. That payment should not be confused with the normal value of using banked kilowatt-hours to offset later electricity consumption. Homeowners who expect to move should review the current tariff and account rules rather than assigning an assumed cash value to a large unused bank.
The current program explanation is available on PNM’s official interconnection-benefits page.
Why System Sizing Matters for Net Metering
Net metering does not make an oversized system automatically more valuable. A good residential design starts with the home’s historical electricity use, roof conditions, productive solar area, and likely future needs.
A system that is too small may leave more annual electricity to purchase from PNM. A system that is unnecessarily large may create more surplus production than the household can use effectively, while increasing the installed cost.
Important sizing considerations include:
- At least 12 months of electricity usage
- Seasonal air-conditioning or heating loads
- Roof orientation and shading
- Planned electric vehicles, heat pumps, or other new loads
- Inverter capacity and the applicable PNM program
- Whether battery backup is part of the project
SunState Solar’s Albuquerque solar-installation page explains how residential systems are designed around local homes, roof types and energy goals.
Does Net Metering Determine Whether Solar Is Worth It?
Net metering is an important part of the calculation, but it is not the only factor.
A homeowner should also consider:
- Installed system price
- Confirmed state incentives
- Cash purchase or financing terms
- Expected annual production
- Current and future electricity use
- Remaining utility charges
- Maintenance and equipment coverage
- Expected time in the home
SunState Solar’s 2026 New Mexico solar-cost guide covers the broader price variables. The New Mexico solar-incentives guide explains the state’s tax credit opportunity, while the solar payback article can be used to estimate when projected savings may recover the net system cost.
For homeowners comparing a solar loan with ongoing utility spending, The Solar Bill Swap addresses the financing decision. This net-metering guide serves a different purpose: explaining what happens to electricity and credits after a qualifying system is connected to PNM.
Net Metering Does Not Provide Backup Power by Itself
A standard grid-tied solar system generally shuts down during a utility outage unless it includes compatible backup equipment. This safety function helps prevent a solar system from sending electricity onto power lines while crews may be working on them.
Net metering is a billing and interconnection arrangement; it is not an outage-protection feature. Homeowners who want electricity available during certain outages should discuss battery storage, backup loads and system design separately.
How a Solar System Becomes Eligible for PNM Interconnection
PNM’s customer-solar process includes checking capacity availability, designing the system, submitting an application, utility review, construction, local inspection, and final permission to operate.
PNM states that a city, county, or state inspection must be completed and that the installer sends the approved permit information to the utility. PNM then updates the billing account, performs its required steps, installs a meter if necessary, and interconnects the system.
Do not turn on a new system before receiving permission to operate. SunState Solar coordinates permitting and utility paperwork for its installations, helping homeowners move from design through inspection and interconnection.
Homeowners who want the full sequence can read How Long Does Solar Installation Take in New Mexico?.
Get a PNM-Aware Solar Design for Your Albuquerque Home
The most useful solar estimate is built around your real PNM usage—not a generic panel count or a promise that every electric bill will disappear.
SunState Solar designs residential solar systems for Albuquerque and surrounding New Mexico communities. The team can review your electricity history, evaluate the roof, estimate production, and explai
Request a solar consultation or call 505-225-8502 to discuss your home and energy goals.n how the proposed system would interact with the applicable PNM process.
Frequently Asked Questions
What is PNM net metering?
PNM net metering is the billing arrangement used for qualifying customer-owned generation connected to the utility grid. PNM compares electricity usage and solar production for the billing period, then bills the net difference or handles net overproduction under the applicable Small or Large PV program.
How long do PNM solar credits last?
PNM states that cumulative kilowatt-hour credits in its Small PV Program do not expire while the account remains open. They can remain in the renewable energy bank for use during a later billing period.
Will solar eliminate my entire PNM bill?
Not necessarily. Solar production and banked credits may reduce electricity charges, but PNM identifies customer charges and other applicable bill items that can remain even when net electricity usage is low.
What happens to my solar credits if I move?
When a customer closes the account, PNM states that remaining Small PV energy-bank credits are paid according to Rate 12. Check the current tariff and account terms before estimating what unused credits may be worth.
Does PNM net metering work during a power outage?
Net metering itself does not provide backup electricity. A standard grid-tied solar system generally shuts down during an outage unless it includes compatible battery and backup equipment designed for that purpose.
Does PNM install or sell residential solar systems?
No. PNM states that it does not install or sell solar systems and does not maintain a preferred-provider list. Homeowners choose their own solar contractor, while PNM manages the applicable utility review and interconnection steps.