Asymmetric Generation Optimizing rentability

What is asymmetric generation?

The software update 1.32.X introduces asymmetric generation for all Fronius Symo GEN24 and Fronius Symo GEN24 Plus inverters, as well as for the upcoming Fronius Verto. In countries with a three-phase electricity grid and where billing at the feed-in point is done precisely for each phase, this function allows self-generated electricity to be distributed across three phases according to the needs of local loads. Your customers benefit from these advantages:

Greater profitability
More self-consumption
Minimized grid power consumption when PV energy is available - whether from the roof or the battery

Advantages of asymmetric generation

More self-consumption

With asymmetric generation, the PV system's potential is consistently maximised, ensuring no ray of sunlight is wasted. This results in better use of solar power, more self-consumption, and better profitability.

Greater profitability

When PV power is available, your customers enjoy even greater independence from expensive grid power. Thanks to the new function available for all Fronius Symo GEN24 and Fronius Symo GEN24 Plus models, as well as for the upcoming Fronius Verto, affordable solar power is used whenever possible.

The right power for every phase

Asymmetric generation ensures that the right amount of self-generated solar power is consistently distributed across the three phases, with the inverter adjusting to the demand of local loads.

More about asymmetric generation

Learn more about asymmetric generation in inverters and how to implement it for your customers. Informative how-to videos and step-by-step instructions make it easy to implement the new feature.

Download application guide

Go to how-to videos

Technology

In certain regions with three-phase grids, billing at the grid feed-in point is done precisely for each phase. If the inverter distributes power evenly across all three phases, this can lead to uneven grid feed-in and consumption, because household loads require varying amounts of power per phase. In the worst case, it may be necessary to purchase expensive grid power even though there is enough PV power available, but it is on the wrong phase. With asymmetric generation, electricity is produced precisely in the phase where the loads require it. This allows your customers to optimize their PV system usage and boost their self-consumption.

Please note the following points:

Power per phase is limited to 33% of the rated power.
Asymmetric generation is not supported in systems with multiple inverters with dynamic power reduction.

Dynamic feed-in limitation

When working with photovoltaic systems, operators are often faced with the challenge of adhering to active power limits set by the grid operators. These specifications can be met either by static or dynamic adjustment of the power at the grid feed-in point.

The advantage of dynamic reduction is that the system operator’s own consumption is taken into account. This means that self-consumption is first covered before the power to be fed into the grid is reduced.

Download the application guide

Why Fronius?

Efficient use of energy and resources, product durability and reliability as well as high European quality and safety standards - these have been the hallmarks of Fronius, a family-run company to this day, since 1945. As pioneers from the very beginning, we have been active in the solar business since 1992. We are always driven by our vision of 24 hours of sun, a world with a 100% renewable energy supply.

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