interconnection permits in BCS?

If you live outside the city and your system is off-grid, you don't need a permit; you can have your system completely independent standalone without any problem.

However, if you have a residence or business that does have CFE service, and you intend to install solar panels to save on your CFE bill, a permit would be required.

Permits for interconnection to the CFE are limited due to administrative and infrastructure issues related to the CFE. As such, they are limited but not prohibited, we handle all the paperwork and CFE puts us on a waiting list.

Will the system work even without permits?

YES

We use a technology called "Zero Export," in which solar panels produce energy only if there are electrical appliances consuming energy. If there are no appliances consuming energy the solar panels reduce their power so the energy doesn't pass through the CFE meter. This technology allows us to use solar energy taking advantage of its benefits and saving on our bills only during the day while the CFE procedures are being carried out.

Once the CFE paperwork is approved, the panels can produce energy even if there are no electrical appliances consuming energy. Therefore, if no appliances are turned on that day, all the solar energy produced will still be returned to the CFE meter which translates into electricity savings since we're basically selling energy to the CFE, that's what all the permitting is for.

This is an example of zero export, the blue graph is the solar production in one day, the orange graph is what the electrical appliances consumed in general that day, as you can see the solar production imitates the electrical consumption and adjusts automatically so that there are no surpluses returning to the CFE meter, this while the procedure is carried out, once approved the panels will produce at their maximum capacity all day without limitation.

Note: for regulatory reasons, for an ON-GRID system to work it must necessarily be connected to the CFE meter. The solar system does not work independently. ON-GRID systems are focused on saving on the electricity bill. If your intention is to save on the CFE bill but at the same time have energy backup when there are blackouts, that is called a HYBRID system, we also have them.

NOM-001-SEDE-2012 Mexico.

IEEE 1547-2018 + UL 1741 USA. CSA C22.2 No. 107.1-16 Canada.

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