Retrofit Battery Storage or Start Off-Grid

Paar vor seinem Einfamilienhaus mit Photovoltaikanlage auf dem Dach in der Sonne

Exporting solar power pays relatively little – and waiting for a grid connection can take time.

Keep More of Your Own Electricity:

Start Off-Grid or Retrofit Battery Storage

Store Instead of Exporting:
Two Ways to Use More of Your Own Electricity

Feed-in remuneration is relatively low, while electricity bought back from the grid costs considerably more. Battery storage changes the equation: solar energy from your own roof stays available for the evening, night and cloudy periods.

Store Solar Power Instead of Exporting It
Feed-in remuneration for many new small solar systems in Germany is only a few cents per kilowatt-hour, while imported electricity costs considerably more. A battery stores midday solar energy for later use and can substantially increase self-consumption.
For Existing Systems: Retrofit Easily
Battery storage can be added to many existing systems on the AC side, independently of the existing solar inverter. It is particularly attractive when an older feed-in tariff expires and using your own electricity becomes more valuable than exporting it.
Start New – Off-Grid
A genuinely off-grid Victron system that does not operate in parallel with the public electricity grid avoids the grid-connection process of a grid-tied generation system. Use the configurator to plan a suitable system quickly; applicable electrical and local requirements still need to be observed.

Frau trägt ein Solarmodul über das Dach einer Photovoltaikanlage

Dynamic Tariffs: Use the Battery Beyond Sunny Hours

With a dynamic electricity tariff, compatible systems can charge when market prices are low and discharge during more expensive hours. This can make the battery useful in winter as well as during sunny periods.

Explore Complete Battery Storage Systems

From an Off-Grid Complete System to Retrofit Battery Storage

Start with a new system or expand an existing one – the right solution depends on your roof, electricity consumption and electrical installation.

A short technical consultation can clarify which system and battery fit your existing installation, or whether an off-grid complete system makes sense for a new project. Benefit from more than 30 years of solar experience.

Get Free Advice

For Different System Sizes:

Complete storage systems and expansion modules from around 3 kWh to well over 30 kWh – for homes, commercial applications and agriculture.

Expandable:

Many systems can grow with your requirements: add battery modules, backup-power functions or an EV charger later where supported.

What You Gain

Less Dependent on Electricity Prices:
Battery storage can increase the share of solar electricity you use yourself substantially. Every self-consumed kilowatt-hour replaces electricity that would otherwise have to be purchased from the grid.
Prepared for Future EEG Changes:
Future changes to Germany’s EEG can alter remuneration and marketing options for new solar systems. High self-consumption and flexible battery storage reduce dependence on any single feed-in model.
Backup Power and Off-Grid Operation Are Possible:
Many hybrid and Victron systems can continue supplying selected loads during a power cut and, when designed accordingly, can also operate independently of the public grid.
New Off-Grid Victron System:
A genuinely off-grid system that is not connected in parallel with the public electricity grid avoids the grid-connection process of a grid-tied generation system. A suitable changeover and protection concept keeps loads safely supplied and prevents unintended parallel operation.