Energy management

Fronius energy management increases self-consumption rate of solar power.

A comprehensive energy management system is especially important for photovoltaic system operators who want to use their self-generated power. The aim is to increase the self-consumption rate and reduce reliance on the public grid, thus lowering energy costs. With its flexible software solutions, Fronius helps operators to consume their solar power in a targeted and efficient manner and to optimise their power supply – in both their own home and on commercial premises.


A good energy management system first of all records and evaluates all the relevant generation and consumption data. Inverters from the Fronius SnapINverter generation are equipped with an integrated Datamanager, which transmits the different photovoltaic system parameters, such as output or energy, to the Fronius Solar.web monitoring portal. Inverters that are not equipped with the Datamanager can have this retrofitted with ease. Household energy consumption is recorded by the bidirectional Fronius Smart Meter and then displayed on the Fronius Solar.web platform too. Here operators can monitor, analyse, compare and store all the values. All the data can also be displayed on the Fronius Solar.web App or Fronius Solar.TV. An additional error message function detects errors early, significantly reducing failures.

The Fronius Solar.configurator online tool assists users with the precise dimensioning of their photovoltaic system by calculating the perfect combination of solar modules and Fronius inverters. This online design tool always supplies the latest solar module and inverter data for system configuration, making it the ideal basis for an energy-efficient power supply.


An energy management relay and the digital outputs provide operators with an additional option for using solar power as efficiently as possible. If the photovoltaic system produces more electricity than is required, the inverter can switch on consumers, meaning that the surplus energy will be used instead of being fed into the grid. Fronius inverters can also be configured with a power hysteresis, which means that you can set on/off thresholds on the inverter as units of power. If the inverter produces more than the set power (e.g. 2000 W), a relay output is activated and the solar energy generated is used to operate consumers – such as heat pumps or swimming pool pumps – instead of being fed into the public grid. The relay output is deactivated if the energy yield drops below a specified value (e.g. 1800 W).

The Datamanager integrated into inverters from the SnapINverter generation has numerous digital inputs and outputs, which enable quick and easy connection to third-party components, such as home automation systems or heat pumps. Users benefit from increased energy efficiency, greater convenience and reduced costs.