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Fronius Energy Cost Assistant

AI-based energy management

Optimized energy flows, maximum savings

The Fronius Energy Cost Assistant automatically supports you as a PV system owner with battery storage to improve your energy use. This allows you to get the most out of your storage system and also save on electricity costs.

Thanks to advanced AI technology, the energy cost assistant continuously analyzes the expected PV production of your system, your energy consumption and the current electricity price and adapts the storage strategy accordingly. Your benefit: not only does your electricity bill drop significantly, you also make optimum use of your energy resources without any additional hardware, simply in the app.

NEW: More solar energy for you

When the sun is shining, you want to make the most of it. The new feature of the Energy Cost Assistant ensures that your solar power is not lost – even when the feed-in limit is active. Our innovative assistant thinks ahead, plans ahead, and stores more energy for you.

What are variable tariffs?
Variable electricity tariffs are price models in which electricity prices fluctuate depending on consumption or market conditions. In contrast to fixed-price tariffs, they can be both cheaper and more expensive. However, they offer a high degree of flexibility in energy use and can therefore be used optimally with an intelligent system.

Using variable tariffs economically  

Even variable electricity tariffs become your advantage with the Fronius Energy Cost Assistant: it reacts reliably to fluctuations in energy prices and thus always determines the ideal time to charge or discharge your battery.

Energy prices are retrieved directly from the exchange and integrated into the AI-supported energy optimization. If the electricity price is low at night, for example, your battery is automatically charged via the power grid. This allows you to benefit from low electricity prices, even when the sun isn't shining.  

The assistant also limits the discharge of your battery when the electricity price is very low. This leaves enough energy in the battery that you can easily access later when the electricity price rises. In this way, high consumption peaks are absorbed and expensive electricity tariffs are avoided

Does all this charging and discharging reduce battery lifespan? No. The Energy Cost Assistant takes battery degradation into account and evaluates whether charging from the grid is truly economically worthwhile.

Start and save - with just one click 

You can easily activate the Fronius Energy Cost Assistant via the web version of Fronius Solar.web Premium. There you can configure all settings quickly and conveniently.Once activated, our Solar.web app not only provides you with up-to-date information on the consumption and yield of your system, but also tells you whether the Energy Cost Assistant is currently active. If necessary, you can deactivate the Energy Cost Assistant at any time in the app or in the web version.

Use the Fronius Energy Cost Assistant with your Solar.web Premium account and start saving money today.

Activate now
What requirements do you have to meet to be able to use the Energy Cost Assistant?
PV system
You have a Fronius PV system with the following components: Fronius GEN24 Plus/Verto Plus, Fronius Smart Meter and battery storage
Flexible elecricity tariff and/or feed-in limitation
You are registered for a flexible electricity tariff and/or your system is subject to a feed-in limitation.
Solar.web Premium
You are already or will become a Fronius Solar.web Premium customer.
PV system
You have a Fronius PV system with the following components: Fronius GEN24 Plus/Verto Plus, Fronius Smart Meter and battery storage
Flexible elecricity tariff and/or feed-in limitation
You are registered for a flexible electricity tariff and/or your system is subject to a feed-in limitation.
Solar.web Premium
You are already or will become a Fronius Solar.web Premium customer.