Solar for businesses in Mexico: the complete 2026 guide
When solar pays off for a Mexican business, what it costs in MXN, how to choose a provider, which tax benefits apply and how a project runs, step by step.
Solar makes sense for a business in Mexico when four things line up: at least 12 months of CFE bills (CFE is Mexico’s state-owned electric utility) showing real consumption, enough roof, ground or structure space, a way to pay for the system, and a plan to stay in the building for at least five years. This guide is for owners and executives seriously weighing a solar investment, from a mid-size store to an industrial plant. It is a working manual, not a brochure. It covers what to check before you ask for proposals: whether solar fits your case, what it costs in Mexico today, how to choose a provider, which tax benefits apply and how a project runs from the first meeting to the first kWh.
It draws on PSE’s field experience installing projects in 13 states across northern and northwestern Mexico from Hermosillo, and on the book Guía de Diseño e Instalación de Paneles Solares Fotovoltaicos (published in Spanish), written by PSE’s CEO.
When solar makes sense for your business
Not every business is an ideal candidate. Before you spend time on proposals, check whether your case meets four basic conditions.
Documented, meaningful consumption. You have at least 12 months of CFE bills. Monthly consumption is above 2,500 kWh, the minimum at which even the smallest viable system pays back quickly. Ideally you are above 5,000 kWh per month, for a better return.
Available space. Every kWp of capacity needs 5 to 7 m² of roof, ground or structure. For a business using 8,000 kWh per month, a typical 50 kWp system needs about 280 m² with good sun exposure and no significant shade.
Tax capacity or financing. You have two viable routes: your own capital or financing. If your company has enough taxable profit, a 100% deduction under Mexico’s Income Tax Law (LISR), article 34, section XIII, lowers the real cost of the project in the first year. If you do not have the capital, a PPA (power purchase agreement) lets you install with no upfront investment. Both routes are covered in financing.
A horizon of at least five years at the property. If the business could move within five years, the system needs extra analysis. Some cases allow the contract to be reassigned to the new location. Others require a reinstallation.
If you meet all four, keep reading. If one fails by a wide margin, we can still talk, but the return will be less attractive than usual.
What solar costs in Mexico in 2026
Commercial and industrial systems in Mexico currently run between MXN 18,000 and MXN 24,000 per kWp installed. That price includes Tier 1 panels, an inverter with local service, structure, installation, CFE filings and warranty. By company size:
| Company size | Typical system | 2026 investment | |---|---|---| | Small business (1,500 to 3,000 kWh/month) | 10 to 22 kWp | MXN 200k to 500k | | Mid-size business (3,000 to 10,000 kWh/month) | 22 to 65 kWp | MXN 500k to 1.5M | | Small to mid-size industry (10,000 to 50,000 kWh/month) | 65 to 330 kWp | MXN 1.5M to 7.5M | | Large industry (50,000+ kWh/month) | 330+ kWp | MXN 7.5M+ |
These ranges assume Tier 1 equipment, professional certified installation and the CFE paperwork included. A proposal that comes in far below them almost always hides something: Tier 2 or Tier 3 equipment, no CFE filing included, a warranty nobody stands behind, or an undersized system.
Three ways to pay for it
Cash purchase. You pay up front and the system sits on your books. This maximizes return because all the savings stay with your company, and you can use the 100% first-year deduction if you have enough taxable profit. It is the best choice when capital is available.
Bank installments or a loan. You pay in installments, with or without interest, through bank partnerships. You own the system from day one. It is useful when you want to preserve cash without giving up ownership of the asset.
PPA (power purchase agreement). A financier installs the system on your roof and you pay only for the energy it generates, at a rate below CFE’s. You invest no capital. The system stays on the financier’s books for 15 to 25 years. It suits companies that prefer to keep their capital, or that cannot use the tax deduction. For the details, read solar PPA in Mexico: when it makes sense.
Each model fits a different situation. PSE helps you choose based on yours.
Tax benefits many companies miss
As the book Guía de Diseño e Instalación de Paneles Solares Fotovoltaicos explains, solar systems qualify for accelerated depreciation under article 34, section XIII, of the Mexican Income Tax Law (LISR). The investment is deducted at 100% in the first fiscal year.
To capture the benefit, the company needs enough taxable profit to deduct against. Companies with losses can carry the deduction into later years, but they do not capture the benefit right away. The full mechanics are in solar tax depreciation in Mexico.
How to choose a provider: ten questions to ask
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Which panel brand do they install, and why? The answer you want is Tier 1 with a sound balance sheet (JA Solar, LONGi, Canadian Solar, Trina). Be suspicious of brands you have never heard of.
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Which inverter do they propose, and where is the service? Inverters tend to fail between year 10 and year 15, so a local authorized service center is critical. PSE is the only GOODWE Authorized Service Center in Sonora.
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Is the full CFE process included? That means the interconnection filing, the meter change, all of it. If it is billed separately, it will show up as an “extra” once you are already committed. See CFE interconnection for how the process works.
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What is their workmanship warranty? It should be in writing, with an explicit term and coverage. One to three years is standard. Five years is a good sign. Details on PSE’s coverage are in warranties.
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How many years have they been in the market? A new company may not exist when you need service. Look for at least three to five years in operation.
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Do they have documented success cases? Real customers who will give references. Be wary if all you get is “many years of experience” with no names.
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Do they hold real industry credentials? Ask about CONOCER competency standards such as EC0586.01 and EC1181 (CONOCER is Mexico’s national council for labor competency certification; its standards can be checked in public databases), FIDE (the federal trust for electricity savings), CPEF (the photovoltaic vendor license) and REPSE (the federal registry required to provide specialized services to another company in Mexico).
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Do they visit the site before quoting? A serious proposal requires seeing the site. A quote based on a satellite photo is only an estimate.
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Do they deliver a month-by-month generation simulation? Not a generic annual average. You want data specific to your location, orientation and constraints.
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How do they handle monitoring after the sale? Look for an app, monthly reports and automatic alerts if the system stops generating as it should.
How a typical project runs
Step 1: Preliminary analysis (2 to 3 business days). You send your last 12 CFE bills. PSE analyzes the consumption pattern, sizes the system roughly, and estimates the savings and the investment range. There is no cost and no commitment.
Step 2: Site visit (1 day). If the preliminary analysis makes sense, we go to your site. We measure roofs, assess shade, review the existing electrical installation and identify constraints.
Step 3: Formal proposal (5 to 7 days). You receive a detailed proposal with the system’s technical specification, a month-by-month generation simulation, financing options, an implementation plan and after-sales support.
Step 4: Contract and initial payment (varies). You sign the contract and make the initial payment under the agreed terms. PSE starts the CFE filings and orders equipment from suppliers.
Step 5: Installation (2 to 6 weeks, depending on size). The physical work, coordinated with your operation to minimize disruption.
Step 6: CFE process (4 to 8 weeks, in parallel). The interconnection filing, the meter change and regulatory verification where it applies, carried out by an independent, government-accredited unit.
Step 7: Commissioning. The system is generating, connected to CFE, with monitoring switched on. You receive manuals, warranties and monitoring access.
Step 8: Ongoing support. Monthly reports, alerts and technical assistance. Professional maintenance is available through LIMSON, PSE’s sister company in the group.
Common mistakes that cost money
Comparing proposals on total price alone. A proposal 25% cheaper almost always has Tier 2 equipment, a warranty nobody backs, or no CFE filing included. The upfront saving gets paid back later in failures and low generation.
Skipping the CFE rate analysis. For some businesses, moving from GDMTO to GDMTH, or the other way around, before installing panels multiplies the system’s financial savings. Few companies run this analysis. GDMTO is CFE’s ordinary (non-time-of-use) medium-voltage rate. GDMTH is its time-of-use rate for medium-voltage customers with high demand. CFE rates explained walks through when each one wins.
Asking for a quote without sending CFE bills. Generic quotes are of little use. Without your real consumption, the numbers are only references.
Undersizing to “start small.” A system that does not match your real consumption delivers disappointing savings. It is better to size at 100% to 120% of current consumption.
Ignoring the condition of the roof. A professional system on a damaged roof becomes a problem in three to five years. If your roof needs replacing, do it before the solar installation.
Leaving out after-sales maintenance. Without professional maintenance, a system loses 15% to 25% of its generation by year five from accumulated dust, biofilm and degrading connections.
Why PSE
PSE, Proyectos y Soluciones en Energía, is an operating brand of Grupo Empresarial CIAE (GECIAE), a Mexican group based in Hermosillo that covers the whole solar chain: design and execution (PSE), maintenance (LIMSON), balance-of-plant electrical work (IED) and certified professional training (CIAE).
What sets PSE apart:
- The only GOODWE Authorized Service Center in Sonora
- More than 4,060 kWp installed (as of June 2026) across documented industrial, commercial and residential projects
- Coverage in 13 states in northern and northwestern Mexico
- Five current CONOCER competency standards
- Membership in a business group that covers the entire solar chain
For more on the company and the group, see about PSE.
Your next step
If your company meets the four conditions above and the investment fits your financial planning, the next step is a no-cost preliminary analysis. Send your last 3 to 6 CFE bills by WhatsApp or email and, within 2 to 3 business days, you’ll receive the analysis with an estimated range of savings and investment.
If your case does not have an attractive return, we tell you before we quote. Request a proposal when you are ready.
Frequently asked questions
What is the minimum company size for solar to pay off?
Companies with a monthly CFE bill above MXN 4,000 to 6,000. Below that, the smallest viable system pays back slowly. Small businesses with low consumption may not be ideal candidates.
How long does the return stay attractive?
Systems have a useful life of 25 to 30 years. After the system pays for itself (typically 3 to 5 years), you get 20 to 25 more years of generation at zero marginal cost. The compounded return of the project over 25 years can exceed 400%.
What happens if CFE changes the distributed generation rules?
Systems already contracted are protected by the version of the contract in force when it was signed. Future changes can affect new contracts but not existing ones.
Should I wait for prices to fall further?
Panel prices have fallen by more than 70% over the last decade. The trend continues, but at a decreasing pace. Waiting means paying CFE more for as long as you wait, so every year of delay has an opportunity cost.
Can my company combine several financing models?
Yes. Some large projects are structured with part own capital, taking the tax deduction, and part PPA, to preserve cash. PSE structures the best model for your case.