01
1. Check your bill
Find the period's kWh, not the amount due.
TERMONORTE · SONORA
How many solar panels do I need?
Quick answer: Divide your bimonthly kWh (on your CFE bill) by 60 days to get daily use. In Sonora each installed kW produces roughly 5 to 5.5 kWh per day. With 550 W panels, 1,000 kWh per bimonthly period usually needs about 6 to 7 panels.
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02
2. Daily use
Bimonthly kWh ÷ 60.
03
3. System kW
Daily use ÷ 5 (approx. production per kW in Sonora).
04
4. Convert to panels
kW ÷ 0.55 for 550 W panels; round up.
Frequently asked questions
Is this exact?
It's an estimate. Orientation, shade and roof type change it; we confirm during the visit.
Must I cover 100% of my use?
Not necessarily; many homes aim to leave the high-consumption DAC tariff.
Can I expand later?
Yes, if the inverter and space allow it.
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Let's talk about what your project needs.
We serve projects and service calls throughout Sonora.