Power Control and Power Assist – Boosting the capacity of the grid or a generator
The MultiPlus-II will prevent the overload of a limited AC source, such as a generator or shore power connection. First, battery charging will automatically be reduced when otherwise an overload would occur. The second level will boost the output of a generator or shoreside supply with power taken from the battery.
A maximum grid or generator current can be set. The MultiPlus-II will then take account of other AC loads and use whatever is extra for battery charging, thus preventing the generator or grid from being overloaded (PowerControl function).
PowerAssist takes the principle of PowerControl to a further dimension. Where peak power is so often required only for a limited period, the MultiPlus-II will compensate for insufficient generator, shore or grid power with power from the battery. When the load reduces, the spare power is used to recharge the battery.
ESS (Energy Storage System) functionality
The MultiPlus-II is the key component in a Victron ESS system, providing the flexibility to combine with MPPT Solar Chargers or Grid-tie PV Inverters. It’s a multifunctional inverter/charger with all the features of the MultiPlus, plus an external current sensor option that extends the PowerControl and PowerAssist function to 50A resp. 100A. The MultiPlus-II is ideally suited for professional marine, yachting, vehicle, and land-based off-grid applications. It also has built-in anti-islanding functionality and an increasingly long list of country approvals for ESS applications. Several system configurations are possible.
Uninterrupted AC power (UPS function)
In the event of a grid failure, or when shore or generator power is disconnected, the inverter within the Multi is automatically activated and takes over the supply to the connected loads. This happens so fast (less than 20 milliseconds) that computers and other electronic equipment will continue to operate without disruption. The MultiPlus-II can be used in off-grid as well as grid-connected PV and other alternative energy systems. It is compatible with both solar charger controllers and grid-tie inverters.
Remote configuring and monitoring
Monitor and control your Multi and system or systems’ locally (LAN) or remotely via the internet from anywhere in the world, using the free VRM app and free “VRM portal” website. Access can be from a phone, tablet, laptop, or PC for multiple operating systems.
Install a Cerbo GX or other GX product to connect to the internet. Operational data can be stored and displayed on our VRM (Victron Remote Management) website, free of charge. When connected to the internet, systems can be accessed remotely, and settings can be changed.