Solar panels in Farmington, NM: cost and payback (2026)
Solar panels in Farmington cost about $22,000 installed for an 8 kW system, and $19,500 net. There is no federal homeowner credit in that figure — the 30% credit ended for systems placed in service after December 31, 2025. At 14.5¢ per kWh that system offsets roughly $175 a month and pays itself back in 9.3 years — assuming Farmington Electric Utility System, which serves most of Farmington, credits what you export.
Cost, rate and sun hours are New Mexico statewide figures from EIA and NREL — we do not publish a separate Farmington rate or sun-hour value we cannot source. The utility is the part that is genuinely local, and it is the part that changes the answer most. Incentives are modelled for today’s date, so nothing expired is counted.
Farmington Electric Utility System: what it means for solar in Farmington
Farmington Electric Utility System serves most of Farmington. It is municipal / public power utility — owned by the city or a public district and governed by its own board or council rather than the state commission — which means the statewide net metering rule generally does not bind it, and its export credit is set locally and can be changed locally.
Because Farmington Electric Utility System is municipal / public power utility, the New Mexico rule below usually does not bind it, and its own board sets the terms. For reference, the statewide position is: New Mexico requires net metering at investor-owned utilities, with excess credited monthly at the utility's energy rate. Treat that as context, not as your contract.
Whichever it is, this is the first question to settle and the one installers are least specific about. Ask for the rider or tariff name, the per-kWh export credit, how long that credit is locked for, and the current interconnection turnaround — in the written quote, not in conversation. Service territories cut across city limits, so confirm against the name at the top of your own bill.
Cost by system size in Farmington
Within one city, quotes still spread. A steep or cut-up roof costs more in labour than a simple south-facing plane. A main service panel at capacity adds a four-figure upgrade before a single module goes up. Two storeys costs more than one. None of that shows up in a per-watt average, which is why the table below is a starting point rather than a quote.
| System | Panels | Gross cost | State incentive | Net cost | Yr 1 savings | Payback |
|---|---|---|---|---|---|---|
| 6 kW | 15 | $16,500 | −$2,500 | $14,000 | $1,575 | 8.9 yrs |
| 8 kW | 20 | $22,000 | −$2,500 | $19,500 | $2,100 | 9.3 yrs |
| 10 kW | 25 | $27,500 | −$2,500 | $25,000 | $2,625 | 9.5 yrs |
Modelled, not quoted. Production is system size × 6.2 peak sun hours × 365 days × 0.8 for inverter, wiring, soiling and heat losses. Savings value that production at 14.5¢ per kWh and hold the rate flat for year one. Panel count assumes 400 W modules. Your roof, your shade and your usage move all of it.
No federal credit is in these numbers. The 30% homeowner credit (IRC Sec. 25D) ended for systems placed in service after December 31, 2025. Net cost above is gross cost minus whatever state or local money is still open — nothing else. If a quote knocks 30% off and calls it a federal credit, ask which statute they are citing.
Permits and approvals in Farmington
Two approvals, one landlord. The Farmington building department issues the electrical and structural permit, and Farmington Electric Utility System — which the city also owns — issues permission to operate. That is usually a shorter path than it is in an investor-owned territory, because both desks answer to the same government. It also means there is no state commission to appeal to if you do not like the answer; the recourse is the council or the utility board, in public, at a meeting.
Permit fees and turnaround vary by jurisdiction and we do not track them, so we are not going to print a number we cannot source. Make the installer put the permit cost and the expected wait for both approvals in the written quote instead of leaving them as a line you discover afterwards.
Incentives and the full state picture: solar panels in New Mexico.
Questions from Farmington
How much do solar panels cost in Farmington?
A 8 kW system in Farmington models at $22,000 installed and $19,500 net, at the New Mexico average of $2.75 per watt. There is no federal homeowner credit in that — the 30% credit ended for property placed in service after December 31, 2025. Quotes inside one city still vary by several thousand dollars depending on roof pitch, panel choice and whether the main service panel needs upgrading.
Who is the electric utility in Farmington?
Farmington Electric Utility System serves most of Farmington. It is municipal / public power utility — owned by the city or a public district and governed by its own board or council rather than the state commission — which means the statewide net metering rule generally does not bind it, and its export credit is set locally and can be changed locally. That matters more than it sounds: your utility, not your installer and not the state, sets what an exported kWh is worth and how long permission to operate takes. Service territories cut across city limits, so check the name at the top of your own bill.
Does Farmington Electric Utility System pay for solar you send back to the grid?
Farmington Electric Utility System is municipal / public power utility, which generally puts it outside the state rule — New Mexico requires net metering at investor-owned utilities, with excess credited monthly at the utility's energy rate. That is the statewide position, but a municipal utility sets its own export credit. Get Farmington Electric Utility System's current residential solar tariff in writing rather than assuming the state rule covers you.
Is solar still worth it in Farmington now the federal tax credit is gone?
On these numbers it pays back in about 9.3 years with no federal credit at all — $19,500 net against roughly $2,100 of electricity offset a year. New Mexico still runs New Mexico Solar Market Development Tax Credit, worth roughly $2,500 here, and that is already in the figure. What decides it in Farmington is the 14.5¢ per kWh you pay now and what Farmington Electric Utility System credits your exports at, not the subsidy that ended.
Does shade in Farmington kill the numbers?
Heavy shade does, and no amount of panel technology fixes it. Partial afternoon shade usually costs a modest percentage of production, which the modelling above does not attempt to guess at. If mature trees cover the south face of your roof for most of the day, the honest answer is not to bother.
Where to look next
Incentives, electricity rates, net metering rules and the full New Mexico picture live on the state page: solar panels in New Mexico.