EI Inverter and Go Inverter

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3 comments

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    Tigo Demo

    Hi Gerard, and thank you for this question. The EI and GO Inverters can be used without the Tigo TS4s. However, depending on your location, you may be subject to the rapid shutdown requirements of the National Electric Code. For residential systems, this often includes a module-level device like the TS4.

    A follow-up question: why don't they want the optimizers? Not only do they provide enhanced array safety and module level monitoring for the lifetime of the system, but they also include Tigo's Reclaimed Energy algorithms that ensure the optimizers harvest as much energy as possible from the modules. Module mismatch occurs throughout the lifetime of the system and the TS4-A-O will hedge that bet against energy loss over time.

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    Gerard Marquez
    Early Adopter

    I told the customer the advantage of the optimizers and rapid shutdown requirements. However, the customer wants to update the panels and add the optimizers at later date when they have the funds. 

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    Tigo Demo

    I thought that was the case. The sticker shock of the initial purchase can be hard to swallow. However, I would reiterate the extra costs of going back up on the roof to remove the modules, add the TS4s and associated CCA and TAP, and then button everything back up. Generally speaking, modules don't like to be taken apart- kind of like IKEA furniture. There is a lot of risk with that future addition.

    Also, is rapid shutdown required in your area? If so then that system will not be compliant.

    Good luck!

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