Introducing Victron Microgrid
A modular approach to building large, flexible off-grid power systems
What if you could build large off-grid systems with the same simplicity as small ones — simply by adding more independent units, increasing reliability, and scaling total power as you grow?
Traditional systems
Large off-grid systems have traditionally been complex to build and difficult to modify, but Victron Microgrid takes a different approach.
Victron Microgrid
Victron Microgrid allows multiple independent Victron inverter-charger systems, called «Power Banks», to operate in parallel on a common AC bus — even if the Power Banks are of different sizes — forming powerful off-grid systems that automatically share the load.
Each Power Bank is a complete, independent Victron installation with its own inverters/chargers, batteries, and monitoring system. There is no central controller and no data wiring between the units. If you need more power, you can simply add another Power Bank and scale the system — up to 400 kW.
Why Victron Microgrid?
Using multiple Power Banks on a common AC bus allows you to build off-grid systems much larger than a single VE.Bus system, without the complexity and risks associated with installing a single large centralized inverter.
Each Power Bank operates autonomously. If one goes offline for maintenance or fails, the others continue to supply power to the AC bus without interruption. This eliminates any single point of failure.
No new equipment. Victron Microgrid uses the exact same inverters/chargers, batteries, charge controllers, and GX devices that installers already work with. Each Power Bank is monitored via its own GX device and VRM.
Connect more Victron Microgrid units to the microgrid as demand grows. Disconnect them when demand drops or maintenance is required. No reprogramming is needed, and the AC bus remains active for loads at all times.
📦 Mobility and Rental
Ideal for the rental market: containerized portable power supplies can be moved from one project to another. Once a job is completed, the same equipment returns to the depot and is dispatched again, ready to plug into another microgrid. A standard, efficient containerized design can be used to meet a wide range of requirements simply by connecting them together with AC cables on site.
Applications
1. Generator rental
Rental operators can treat Power Banks as modular fleet assets. Instead of maintaining numerous fixed-capacity systems for different tasks, standardized Power Banks can be stored and combined according to each contract. A small project might require two Power Banks; a larger project might need six or more. After the contract ends, the same units are returned to the depot and reused in a different combination. Power Banks can be grouped into a microgrid in VRM to provide remote monitoring, alerts, and transparency across all active sites.
2. Construction sites
Construction sites often have a stable base load with temporary peaks in demand. Site offices, lighting, and tools might operate at the same level for months, and then a crane, welding equipment, or other heavy machinery suddenly increases consumption.
Additional Power Banks can be delivered to the site, connected to the AC bus for the peak period, and removed once it's over. This allows capacity to be matched to the actual stage of the project and reduces reliance on generator operation if silent battery power is preferred or required.
3. Events and festivals
Demand profiles change depending on the stages of setup, live operation, and teardown. Peak power might only be needed for a fraction of the schedule, but reliable power supply is essential throughout the entire period. Deploy more Power Banks for peak periods and fewer for quieter ones, without needing to redesign the system. If the schedule changes, quickly increase capacity by connecting another Power Bank to the AC bus. And if one unit fails, the others will keep running.
4. System expansion
Victron Microgrid is also a practical way to upgrade an existing Victron off-grid installation. Instead of dismantling a working system to scale it up, install a second Power Bank next to it and connect both to the same AC bus. The original system remains untouched and simply becomes one of the Power Banks in the microgrid. This is particularly useful for containerized or remote installations where modifying the existing system would cause disruptions. Each Power Bank manages its own charging, so the new unit requires its own charging sources, such as additional solar power, a connection to a DC generator, or other DC sources.
How Victron Microgrid works
A Power Bank is a complete standalone Victron system: one or more VE.Bus inverters/chargers, a battery bank, a DC distributor, DC charging sources, and a GX device for monitoring. In a Victron Microgrid, several Power Banks are connected to a common AC bus and work together as one large power system.
Load sharing between the units happens automatically via varying voltage and frequency, with no need for a central controller, data exchange between the Power Banks, or complex configurations. This decentralized approach makes the system simple and robust. Three-phase and split-phase configurations are also supported.
🔌 Independent charging
Decentralized DC charging — is what allows this controller-less approach to work. Each Power Bank manages its own charge level using its own charging sources. Victron supports a range of charging options:
DC-coupled MPPT solar charge controllers
AC chargers (such as MultiPlus, Quattro, or Multi RS) connected to an AC generator or other AC source, independent of the microgrid's AC bus.
DC generator integration (including start/stop automation)
Getting started in Ukraine
Victron Microgrid is available through our partner in Ukraine – Total-Energo LLC. You can order a customized solution for your business with implementation, commissioning, and staff training.
