CFE Electricity in Mérida: Understanding (and Beating) DAC
The most expensive surprise in Mérida isn't rent — it's the August electricity bill. Here's exactly how the tariff works and how to stay on the cheap side of it.
Will you land in DAC? Estimate your summer bill
Bimonthly estimate, summer use. Illustrative — CFE's exact tables change; the 850 kWh trap doesn't.
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Why are electricity bills in Mérida so high?
They aren't — until air conditioning meets a tariff cliff. Mérida's combination of 35–40°C heat from April through September and a subsidy system with a hard cutoff means two neighboring houses can pay wildly different rates for similar comfort. The household that manages its consumption stays on subsidized tariff 1C and pays modest bills; the household that runs three old minisplits all summer crosses into DAC and pays roughly four times more per kilowatt-hour — for the next year.
Understanding one number — 850 kWh per two-month billing period — is worth more money than any other single fact in your Mérida budget.
How does CFE tariff 1C actually work?
CFE bills most of Mérida and Progreso bimonthly on tariff 1C, a hot-climate residential tariff with stepped, subsidized pricing: a cheap basic block, a mid-priced intermediate block, and a pricier excess block — with deeper summer subsidies during the hot months, which is exactly when you need them. As long as your rolling average stays at or under 850 kWh per bimonthly period, you remain on these subsidized steps.
Your bill shows the tariff code, the consumption history bar chart, and the rolling average — learn to read those three things and you control the outcome.
What is DAC and why is it a trap?
DAC (Doméstica de Alto Consumo) is CFE's unsubsidized tariff for 'high-consumption' homes. Cross the 850 kWh bimonthly rolling average and you're reclassified: every kilowatt-hour now costs roughly four times the subsidized blocks — recent reference pricing put DAC at about MX$5.3–6.2 per kWh — plus a fixed monthly charge.
The trap has two jaws:
- It's a rolling average, so one bad summer poisons the whole year. You can't undo July by being frugal in November — once classified DAC, you typically need around twelve months of low consumption to drop back to 1C.
- It compounds invisibly. Most people discover DAC on the bill after the summer that caused it — a single bimonthly DAC bill for an AC-heavy house can rival a month's rent.
| Scenario | Bimonthly use | Tariff | Approx. bill |
|---|---|---|---|
| Disciplined: 1 inverter minisplit, bedroom nights + office hours, fans elsewhere | ~700 kWh | 1C (subsidized, summer rates) | ≈ MX$900–1,400 |
| Careless: 3 older minisplits, 14 h/day, leaky rooms | ~1,600 kWh | DAC | ≈ MX$9,000–10,000+ (US$520–575) |
Exact figures vary with CFE's current rate tables — the four-to-one shape of the trap is the constant.
10 concrete ways to stay under the DAC line
- Buy inverter minisplits. Modern inverter units use a fraction of what decade-old units burn — the single highest-ROI upgrade in Yucatán.
- Cool rooms, not houses. 24–26°C in the room you're in; doors closed; nobody air-conditions a hallway twice.
- Run ceiling fans with the AC. Moving air lets you set the thermostat 2–3°C higher at equal comfort.
- Seal and shade. Weatherstrip doors, curtain west-facing glass, and if you control the roof: white reflective sealant (impermeabilizante reflectivo) measurably drops indoor temps.
- Night-and-office strategy. AC in bedrooms at night and the workspace by day beats whole-house cooling at a fifth of the consumption.
- Read your meter monthly. Two minutes on the 1st of each month tells you your pace; 425 kWh/month is the danger line.
- Check the tariff box on every bill. '1C' good; 'DAC' means act now — the bill also shows the rolling average you need to bring down.
- Time the big loads. Pool pumps, laundry, and water pumps off-peak and off-summer where possible.
- Solar panels. Mérida's sun makes net-metered solar genuinely popular — DAC-level consumption is precisely where panels pay back fastest; quotes vary, get three.
- Before renting or buying: demand the CFE history. The meter carries its past — inherit a 1C house, not someone else's DAC year. (Our renting guide and buying guide both flag this.)
Reading and paying your CFE bill
Bills arrive bimonthly — paper to the house and digitally via the CFE Contigo app, which is worth installing on day one (consumption history, due dates, outage reports). Pay in the app, at CFE kiosks (CFEmáticos), online banking, or at OXXO with the bill's barcode. Keep a paid CFE receipt around: it doubles as the standard proof-of-address document for everything from bank accounts to school enrollment.
Base non-AC consumption — fridge, fans, lights, electronics — typically lands around MX$500–1,200 per bimonthly bill (the 'utilities ~US$60/month' line in our cost guide). Everything above that is climate control.
The 60-second checklist for renters and buyers
Before signing anything: (1) See the last 3 CFE receipts — tariff box says 1C, not DAC. (2) Check summer consumption on the bar chart — over ~800 kWh bimonthly is a yellow flag for the equipment in place. (3) Count and date the minisplits — inverter or museum piece? (4) Ask who pays for minisplit servicing (annual cleaning keeps efficiency). (5) If buying: factor roof treatment and unit upgrades into your renovation budget — they're cheap relative to a year of DAC.
Frequently asked questions
What is a typical summer electric bill in Mérida?
With disciplined inverter-AC use, MX$900–1,400 per bimonthly summer bill (≈US$50–80) is achievable on 1C. Careless whole-house cooling on old equipment can produce DAC bills of MX$9,000+ (US$520+) for the same period. The spread is behavior and equipment, not luck.
How do I know if I'm in DAC?
The tariff box on your bill (and in the CFE Contigo app) says it explicitly: 'DAC' instead of '1C'. The bill also shows your rolling bimonthly average against the 850 kWh limit, so you can see trouble coming two bills away.
How do I get out of DAC?
Bring your rolling average back under the limit and keep it there — reclassification back to 1C typically takes on the order of a year of compliant consumption. There's no shortcut application; the meter history is the application.
The house I'm renting came with a DAC meter. What now?
Negotiate: either the landlord covers the excess until the meter reclassifies, or the rent reflects it. This is why the pre-lease CFE check matters — once you've signed, the meter's history is your bill. Document the handover reading either way.
Is solar worth it in Mérida?
For households flirting with DAC, usually yes — maximum sun plus Mexico's net-metering makes Mérida one of the better solar markets anywhere, and panels specifically attack the expensive kilowatt-hours. Quotes and payback vary by roof and consumption; get three quotes and run conservative numbers.
Why is my bill bimonthly?
CFE bills residential service in Yucatán every two months — that's also why the DAC threshold (850 kWh) is expressed per bimonthly period, and why one indulgent summer month hides inside an average until the bill lands.