Solar Panel Calculator for Mexico
Mexico's excellent sun makes rooftop solar very attractive, especially for homes that have lost the subsidised tariff (tarifa DAC). This free solar calculator estimates your system size, payback and savings in pesos using local rates and sun hours.
Calculate my solar payback in Mexico →
Solar at a glance in Mexico
For high-tariff (DAC) households, payback is often quick given strong irradiance; the calculator shows your own case.
| Currency | Mexican pesos (MXN) |
|---|---|
| Typical electricity rate | $ 4 per kWh |
| Installed cost | ≈ $ 45 per watt |
| Peak sun hours | ≈ 5.5 hours/day |
| Export / buyback | ≈ $ 1 per kWh |
Indicative 2026 starting points — every figure is editable in the calculator, and results depend on your own bill, roof and installer quotes.
A typical 5 kW system in Mexico
At around $ 45 per watt, a 5 kW rooftop system costs roughly $ 225,000 and produces about 7,829 kWh in its first year at Mexico's 5.5 peak sun hours a day. Your real numbers depend on your roof, shading, panel choice and how much power you use during the day — run your own figures in the calculator to see your exact payback, net savings and ROI.
How the solar calculator works
- Your setup. Mexico and Mexican pesos are pre-selected, with local electricity rate, install cost and sun hours filled in. Enter your monthly bill, or size the system from your appliances.
- Your roof. Search your address or tap “use my location”, then draw your roof on the satellite map — or just type its area. We check the system fits and read local sun hours from NASA data.
- Your results. Instantly see your payback period, net savings, ROI, system size, year-1 production and lifetime CO₂ offset — compare cash vs. a loan, and download a PDF report.
Common questions — solar in Mexico
How many solar panels do I need in Mexico?
It depends on your electricity use, roof space and local sun hours (about 5.5 peak sun hours/day here). A 5 kW system of high-wattage panels is a common starting point for a home — enter your bill or appliances and the calculator gives your exact panel count and system size.
Does Mexico have net metering?
Small-scale systems can connect to CFE under net-metering or net-billing contracts, offsetting consumption or being credited for export. The calculator models your buyback rate.
Are there solar subsidies or incentives in Mexico?
There is no broad cash subsidy; the biggest driver is escaping the high DAC tariff, where payback can be very fast.
How much does a solar system cost in Mexico?
A typical 5 kW system is around $ 225,000 at about $ 45 per watt installed. The calculator prices your exact size.
Work out your system size
Not sure how big a system you need? These guides work back from your monthly usage:
500 kWh/month 1,000 kWh/month 1,500 kWh/month 2,000 kWh/month 2,500 kWh/month 3,000 kWh/month
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