How to read your CFE bill in Los Cabos
Find the Spanish bill labels and separate current energy from previous balances.
Mirasol · Los Cabos
Why a Cabo service is on DAC—and how its $14,367.30 bill adds up
A real Cabo San Lucas bill lets us separate two questions: why the service is classified DAC, and how CFE reaches the amount due. These are anonymized transcriptions, not a fictional installation or a solar savings claim.
Mirasol guide · Updated
In this guide
Edit the bill. Follow each calculation.
Recreated learning copy. No account identifiers. This is not an official CFE bill or a solar quote.
Choose Edit amounts to highlight the inputs. Historical balances and old results disappear; the exercise calculates this period only.
Start when you are ready. You control the pace.
DAC is a consumption classification, not one expensive month
CFE defines high domestic consumption using the average over the previous 12 months and the limit for the underlying domestic tariff. For 1C, that limit is 850 kWh/month. The source bill explicitly says DAC, but it does not identify its earlier domestic tariff. We therefore show the 1C comparison conditionally; a Cabo address alone does not prove the correct category.
What this service used across six bills
The latest six periods shown on the source run from 9 April 2025 to 10 April 2026. Adding their consumption and dividing by 12 gives 996.33 kWh/month. This six-bill worksheet approximates a year; it is not a reconstruction of CFE’s exact day-based classification record.
| Billing period | Consumption (kWh unless stated) |
|---|---|
| 09 Apr–10 Jun 2025 | 2,417 |
| 10 Jun–12 Aug 2025 | 2,383 |
| 12 Aug–13 Oct 2025 | 1,301 |
| 13 Oct–10 Dec 2025 | 2,651 |
| 10 Dec 2025–10 Feb 2026 | 1,203 |
| 10 Feb–10 Apr 2026 | 2,001 |
| Six-bill total | 11,956 |
| Total ÷ 12 months | 996.33 kWh/month |
If its underlying tariff was 1C, it is above that reference
At 850 kWh/month, the 12-month reference is 10,200 kWh. This worksheet totals 11,956 kWh: 1,756 kWh above that reference, or an average 146.33 kWh/month higher. If CFE assigned a different underlying domestic tariff, use that tariff’s limit instead. The earliest complete six-bill window available on this source also exceeds the 1C reference, so this document cannot establish the first date the service entered DAC.
Reconcile the 10 February–10 April 2026 invoice
The bill records 2,001 kWh and a fixed charge of 144.460 MXN per month. A variable rate of 6.045 MXN/kWh reproduces the displayed totals when precision is retained. That variable rate is inferred from this bill; we have not independently matched it to the historical monthly DAC schedule. It is not presented as today’s rate.
| Line | Calculation | Amount |
|---|---|---|
| Energy, inferred rate | 2,001 kWh × 6.045 | 12,096.045 |
| Fixed charge, printed rate | 2 × 144.460 | 288.920 |
| Energy + fixed charge | 12,096.045 + 288.920 | 12,384.965 → 12,384.97 |
| IVA 16% | 12,384.965 × 0.16 | 1,981.5944 → 1,981.59 |
| Current-period invoice | 12,384.965 × 1.16 | 14,366.5594 → 14,366.56 |
| Previous balance less payment | 8,085.74 − 8,085.00 | 0.74 |
| Account total | 14,366.56 + 0.74 | 14,367.30 |
Why rounding early produces a one-cent error
The reconstructed taxable base is 12,384.965 MXN. Applying 16% before rounding gives 1,981.59 MXN IVA, matching the bill. Applying IVA to the displayed, already-rounded 12,384.97 gives 1,981.60 instead. This is a reconciliation of this document, not a claim that we have verified every CFE rounding rule. The large header shows 14,367; the detailed account total is 14,367.30.
What a solar proposal still needs to establish
A useful proposal needs the original domestic category, full consumption history, roof production and the applicable interconnection agreement. Reducing one bill does not by itself prove that the rolling average has fallen below the DAC limit. Keep projected energy savings separate from the 0.74 MXN carried balance, remaining fixed charges and any battery or financing cost.
Continue planning your project
DAC solar savings: test the export-value assumption
Check a savings calculation with the export assumption shown separately.
CFE 1C: calculate winter and summer bills
Compare DAC with a subsidized 1C bill and see how winter and summer tiers change the calculation.
Sizing solar panels for a DAC bill in Los Cabos
Use annual consumption history to size a solar proposal instead of sizing from the amount due.
Solar panels in Los Cabos
Compare roof production, panel sizing and the installed solar scope using your actual consumption.
Solar panels in Cabo San Lucas
Check roof access, shared-roof permissions and summer use for a Cabo San Lucas installation.
FAQ
What to clarify before quoting.
Can this bill prove when the customer first entered DAC?
No. It confirms the current DAC classification, and its history supports a conditional comparison with the 1C limit. The original domestic category and older classification record are still needed to establish the first entry date.
Does 1,700 kWh on a two-month bill automatically mean DAC?
No. For a 1C service, 1,700 kWh is two months of the 850 kWh/month reference. CFE’s test uses the previous 12-month average, not one two-month reading.
Is 6.045 MXN/kWh a verified current DAC tariff?
No. It is a bill-implied rate that reconciles this February–April 2026 example. A new calculation must use the applicable region, months and independently verified schedule.
Why is the current invoice different from the amount due?
The current-period invoice is 14,366.56 MXN. A previous balance of 8,085.74 less a payment of 8,085.00 leaves 0.74, bringing the detailed account total to 14,367.30.
Sources
External sources used as context.
These references provide technical context. Your location, energy needs and project scope still need an individual assessment.
Ready to start?
Start with the property’s actual information
Use your CFE bill for an initial assessment. Roof conditions, equipment and the final scope need confirmation before installation.