Fronius Energy Cost Assistant
AI-based energy management
Optimised 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 analyses 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.
Using variable tariffs economically
With the Fronius Energy Cost Assistant, variable energy tariffs can be used to your advantage: it reacts to fluctuations in energy prices and determines the ideal time to charge and discharge your battery.
Energy prices are retrieved directly from the energy provider and integrated into the AI-supported energy optimisation tool. If the electricity price is low at night, for example, your battery is automatically charged via the power grid, if not fully charged by the sun. 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.
Works with Octopus
Fronius Energy Cost Assistant is fully compatible with Agile Octopus tariffs, helping your home automatically respond to half‑hourly energy prices so you can use more electricity when prices are low and avoid the peaks.
