Rooftop Solar & Net Metering with CFE in Mexico: A Guide

Few things surprise new expats in Yucatan more than a summer electricity bill. Air conditioning runs hard from April through October, and Mexico’s national utility, the Comisión Federal de Electricidad (CFE), charges steep rates once your usage climbs past subsidized tiers. Rooftop solar is the answer thousands of homeowners in Merida, Sisal, the Riviera Maya, and Bacalar have already embraced. With abundant sunshine and a workable net metering program, a well-designed system can cut your bill to almost nothing. This guide explains how solar works with CFE, what it costs, how long it takes to pay off, and the permits involved.

Why Solar Makes Sense in the Yucatan

The Yucatan Peninsula receives some of the strongest, most consistent sunlight in Mexico, which means panels here produce more energy per year than in many cloudier regions.

• High solar irradiance translates to strong year-round production.
• Cooling loads are heavy, so the savings potential is large.
• CFE’s tiered pricing punishes high consumption, making offset especially valuable.
• Falling equipment prices have made systems more affordable than a few years ago.

The economics are simple: you generate your own power during the day, feed the surplus back to the grid, and draw from it at night, paying only for the net difference.

How Net Metering with CFE Works

CFE offers an interconnection arrangement often called net metering under a small-scale generation contract for systems up to a certain capacity, generally 500 kilowatts, though residential systems are far smaller.

• A bidirectional meter measures both the energy you consume and the surplus you export.
• Excess daytime generation earns credits applied against your nighttime and cloudy-day usage.
• Credits typically roll over for up to 12 months, letting summer surplus offset other months.
• You are billed only on the net electricity drawn from the grid over the period.

The goal for most homeowners is to size the system so annual production closely matches annual consumption, driving the bill down to just the minimum service charge.

What a System Costs

Pricing depends on system size, panel quality, and installer, but general ranges help with planning. Systems are measured in kilowatts of peak capacity (kWp).

• A modest 3 kWp system for a small home runs roughly 60,000 to 90,000 pesos.
• A typical 5 to 6 kWp system for a family home costs about 100,000 to 160,000 pesos.
• Larger 8 to 10 kWp setups for big AC loads range from 180,000 to 260,000 pesos.
• Prices usually include panels, inverter, mounting, installation, and CFE paperwork.

Ask installers whether battery storage is included; most grid-tied systems skip batteries because net metering effectively uses the grid as your storage, which keeps costs down.

Payback and Long-Term Savings

The return on solar in Mexico is compelling, especially for homeowners stuck in CFE’s high-consumption tier.

• Typical payback periods run 3 to 6 years, depending on how high your bill was.
• Panels are warrantied for 25 years and often produce well beyond that.
• After payback, your electricity is essentially free for decades.
• Solar also adds resale appeal, a real plus in a hot expat market.

If your monthly bill regularly exceeds 2,000 to 3,000 pesos, solar almost always pays for itself quickly.

Permits and Installation Steps

A reputable installer handles most of the bureaucracy, but you should understand the sequence.

• The installer assesses your roof, orientation, and your CFE bill history to size the system.
• A grid interconnection request is filed with CFE for the small-scale generation contract.
• CFE approves and swaps your meter for a bidirectional meter.
• Installation and commissioning follow, then production begins offsetting your bill.

Choose an installer with proper credentials, quality-brand components, and a solid workmanship warranty. Cheap systems with unknown inverters can disappoint.

Make the Switch Wisely

Rooftop solar is one of the best investments a homeowner can make in Mexico, but the details matter: correct sizing, quality equipment, and proper CFE registration all affect your results. Rates and program rules can change, so treat this as general guidance and consult a licensed solar professional and CFE about your specific property and consumption.

If you are buying or already own a home in Yucatan or the Riviera Maya and want to understand its solar potential and running costs, the Mexico Living team is glad to help you think it through. Reach out any time on WhatsApp at wa.me/5219993788084 and we will point you toward trusted local resources.