Electricity Costs and Solar Power in Los Cabos: CFE Bills, DAC Rates, and Going Solar

The first CFE bill is the one that makes new Cabo homeowners call me. Not because they expected it to be free — because they did not expect it to be $800 for two months of air conditioning. Mexico's electricity pricing is designed to subsidize modest use and punish high consumption, and a 3,000-square-foot villa running AC in August is, by CFE's definition, high consumption.

How CFE Billing Works in Los Cabos

CFE (Comisión Federal de Electricidad) is Mexico's state-owned electricity utility and the only residential provider. There is no shopping for a cheaper supplier — everyone pays CFE. Bills arrive every two months (bimonthly), which means a single bill covers 60 days of usage.

Los Cabos falls under Tariff 1E — the extreme climate classification, assigned based on summer temperatures. This classification actually benefits homeowners because the summer subsidy thresholds are more generous than temperate zones. But the benefit only applies if you stay under the consumption limits.

The rate tiers work like a progressive tax:

• Basic (Básico): first 75 kWh per month at approximately 1.1 MXN/kWh — heavily subsidized
• Intermediate (Intermedio): next 125 kWh at approximately 1.35 MXN/kWh — still subsidized
• Surplus (Excedente): everything above 200 kWh at approximately 4.0 MXN/kWh — barely subsidized

The jump from intermediate to surplus is the cliff. You go from paying roughly $0.07/kWh to $0.22/kWh — a 3x increase — the moment you cross 200 kWh in a month. And a villa running three AC units in August will blow past that threshold in the first week.

The DAC Penalty: The Most Expensive Mistake

DAC — Doméstica de Alto Consumo — is the high consumption classification that removes all government subsidies from your electricity bill. If your 12-month rolling average consumption exceeds the DAC threshold for your tariff zone, you are reclassified to DAC and every kilowatt-hour is billed at approximately 6.0+ MXN/kWh ($0.35+ USD/kWh) — including a fixed monthly charge on top.

For Tariff 1E in Los Cabos, the DAC threshold is approximately 2,000 kWh per bimonthly period (1,000 kWh/month average over 12 months). That sounds like a lot, until you realize that a large home running central AC during a Cabo summer can consume 2,000-4,000 kWh in a single bimonthly cycle.

The trap: once you hit DAC, it takes 12 consecutive months of consumption below the threshold to exit. You cannot fix it by turning off the AC for one month. You are locked in for a year. I have seen homeowners in Pedregal with DAC bills exceeding $2,000 USD for a single bimonthly period — because every kWh is at the unsubsidized rate.

How to avoid DAC:

• Install high-efficiency mini-split AC systems (inverter technology uses 30-50% less power than older units)
• Use AC strategically — cool occupied rooms, not the entire house
• Insulate your roof and windows (the biggest heat gain point in Cabo homes)
• Install solar panels — the most effective DAC avoidance strategy
• If you have a vacation rental, monitor consumption during turnover periods when AC runs for staging

What Actual Bills Look Like

Here is what I see across the properties we manage, by property type and season:

The range is wide because AC usage is the dominant variable. A home with modern inverter mini-splits, good insulation, and strategic cooling can stay under DAC all year. The same home with old-style AC units running 24/7 will hit DAC by July and stay there until the following summer.

The Solar Case: Why It Makes Obvious Sense in Cabo

Baja California Sur is one of the sunniest regions in Mexico — and Mexico is one of the sunniest countries on Earth. The solar irradiance in Los Cabos averages approximately 5.5-6.5 kWh/m²/day, which means solar panels produce more energy per panel here than in most of the United States.

Combined with CFE's punitive rate structure — especially the DAC cliff — solar is not a feel-good environmental choice in Cabo. It is a financial no-brainer for any property running significant AC.

Installation Costs

• Small system (3-5 kW): $5,000-$10,000 USD — suitable for a condo or small home with minimal AC
• Medium system (5-8 kW): $9,000-$15,000 USD — typical for a 2-3 bedroom home
• Large system (10-15 kW): $17,000-$40,000 USD — for large homes with multiple AC units
• Battery storage (optional): $4,000-$15,000 USD — for backup during outages or off-grid capability

The installed cost per watt in Mexico runs approximately $0.90-$1.40 USD — significantly lower than the US average of $2.50-$3.50 per watt. Labor costs, local manufacturing, and fewer permitting requirements all contribute to the lower price point.

Payback Math

For a home currently paying $4,000/year in CFE bills with a $25,000 solar installation:

• Annual savings: $3,000-$4,000 (solar eliminates 75-100% of CFE consumption)
• Payback period: 6-8 years
• System lifespan: 25+ years
• Net savings over 25 years: $50,000-$75,000

For a home that would otherwise hit DAC, the payback is faster — 3-5 years — because the avoided cost per kWh is higher. Solar does not just reduce your bill; it keeps you in the subsidized tier, which amplifies the savings beyond the solar generation itself.

Net Metering with CFE

CFE's net metering program (medición neta) allows residential solar systems up to 10 kW to feed excess generation back to the grid. CFE installs a bidirectional meter that tracks both consumption and generation. Excess energy earns kWh credits — not cash — that offset future consumption.

The process:

• Your solar installer handles the interconnection application with CFE
• CFE reviews and approves the system design (typically 2-4 weeks)
• CFE installs the bidirectional meter at no cost to you
• Excess generation credits roll forward for 12 months
• You still pay CFE's minimum charge (~$2-$3 USD/month) even with credits

The 10 kW residential cap is the main limitation. Larger homes may need to size their system at exactly 10 kW to qualify for net metering, or explore commercial interconnection options for larger systems. Your solar installer will guide you through the sizing optimization.

Practical Tips for Managing Electricity Costs

• Ask for CFE bills before buying: request the last 12 months of bills from the seller. High bills may indicate DAC status, poor insulation, or inefficient AC.
• Upgrade AC units: modern inverter mini-splits use 30-50% less electricity than traditional fixed-speed units. The upgrade cost ($1,500-$3,000 per unit installed) pays for itself in 1-2 years of reduced bills.
• Install ceiling fans: a ceiling fan costs $15-$25/year to run and can reduce AC usage by allowing you to set the thermostat 3-5 degrees higher while maintaining comfort.
• Use timers and smart controls: AC running in empty rooms is pure waste. Smart thermostats that adjust based on occupancy pay for themselves in a single summer.
• Monitor your rolling average: check your CFE bill for the 12-month consumption average. If you are approaching the DAC threshold, take immediate action — once you cross, you are locked in for a year.

For the full picture on what it costs to own property in Los Cabos, including electricity, staff, HOA fees, property taxes, and insurance, read our annual ownership cost guide.