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Technically, NRS-097 compliance is crucial for the integration of inverters like the MultiPlus-II within the South African power grid.
This standard specifies the maximum network impedance (0.28 Ω + j0.18 Ω) that an inverter must accommodate to ensure stable operation and minimal impact on the grid.
Additionally, the standard requires the inverter to manage the balance of power among multiple single-phase units, which is achieved only when the Victron Color Control or Cerbo GX is incorporated.
The GX Devices manage the interaction of multiple inverters, ensuring they operate within the NRS-097 unbalance requirements.
This compliance is essential not only for the functional integrity of the power system but also for legal and safety reasons, as it adheres to the guidelines set forth by South African grid authorities.
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Probably hasn’t been updated or they are giving info on the lowest cost product.
Technically, the Victron Cerbo GX is the more advanced successor to the Color Control GX, offering enhanced capabilities and connectivity.
The Cerbo allows for the same monitoring and control functionality as the Color Control GX but with a more modern interface and additional features such as built-in WiFi and more extensive data logging.
When managing multiple MultiPlus-II units, the Cerbo GX is fully capable of ensuring compliance with grid standards such as NRS-097 by coordinating the inverter outputs for balance and stability.
It’s designed to integrate seamlessly with Victron’s remote management platform, VRM, for comprehensive system oversight.
Therefore, if you already have a Cerbo GX, it’s the preferred choice for managing your MultiPlus-II setup, negating the necessity for a Color Control GX.
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