FEMS App
peak load window
FEMS App
peak load window
With the FEMS App Peak Load Window, your storage system provides targeted support during periods of high grid load. During these defined time windows, grid consumption is automatically limited or the storage system discharges to avoid costly peak loads. Outside these periods, the storage recharges — keeping your energy system efficient and cost-effective
With the FEMS App Peak Load Window, your storage system provides targeted support during periods of high grid load. During these defined time windows, grid consumption is automatically limited or the storage system discharges to avoid costly peak loads. Outside these periods, the storage recharges — keeping your energy system efficient and cost-effective
Benefits
Flexible
Thanks to the open FENECON Open EMS platform, you are not tied to any single manufacturer. Your system remains expandable, adaptable, and grows flexibly with your requirements.
Economical
By using the storage system during the time windows defined by the distribution grid operator, substantial savings on grid fees can be achieved. Instead of paying a demand charge based on the annual peak load, you pay the peak load within the high-load time window.
Sustainable
Software, battery management, and control are developed 100% in Germany. Your data stays local — even without any cloud connection if desired. This ensures you can always rely on your energy system.
Key Facts
01
Targeted Time-Window Control
You configure time periods during which load peaks are reduced — the storage system automatically limits or discharges during these times to avoid grid costs.
02
One-time purchase instead of a subscription
No hidden-cost subscription model: you purchase the FEMS App once and use it permanently without any ongoing costs.
03
Lifetime Free Updates & Support
Benefit from continuous improvements and personal support — directly from our developers and service staff in Germany.
For everyone who wants
to know all the details!
Here you will find all technical details and operating manuals for our FEMS Apps – compact, transparent, and always up to date.
FEMS
Energy Storage System, inverter and energy management — perfectly matched and always included.
Its your Energy Journey
Our award-winning Open-EMS energy management system FEMS is included with every Energy Storage System. FEMS intelligently controls, monitors and optimises your energy flows – autonomously without an internet connection if desired, or by default via our secure FENECON servers in Germany. Developed by teams in Bavaria – naturally according to the highest data protection standards.
Included
Via online monitoring in your browser or through the app (Android & iOS), you can keep an eye on your energy at any time. Live data, clear analytics, and locally stored history provide full transparency. Your data is always protected through cyber security by design, German-based servers, and a development team located in Germany — naturally in accordance with German data protection and IT security standards.
1.
Growing With You
Your life changes – and your energy system grows with it. Thanks to FEMS, your storage system remains open for anything the future brings: new devices, new ideas, new possibilities. And all of this without lock-in, without subscriptions, without artificial limitations. Instead, you get lifelong, free updates that keep your system always up to date.
Through optional, one-time purchasable FEMS Extension Apps, you can expand your system at any time – for example with charging stations, heating rods, or other consumers. This turns your storage into a customized energy system that perfectly fits your everyday life – not something off the shelf. Thanks to the manufacturer-independent open-source approach, you remain completely free in choosing your components. FEMS grows with you – because true independence only works when systems stay open.
To the FEMS Extension Apps
2.
Thinking Ahead
FEMS ensures that your energy doesn’t just “run” – it adapts to your life. It acts intelligently, proactively and independently. Using AI-based forecasting, FEMS creates a holistic, customised energy plan for your needs, updating it every minute and incorporating all relevant factors.
FEMS analyses weather data, consumption profiles, tariffs and grid conditions in real time and makes forward-looking decisions that intelligently control your energy flows. The result: you save costs, conserve resources and reduce strain on the power grid at the same time.
3.
"With the Peak Load Time Window, my system automatically regulates during peak periods — helping me avoid the most expensive load peaks and keep my operation stable."
FAQ
The app is currently compatible with all common models of the FENECON Commercial series and the FENECON Industrial series.
For FEMS Extension Apps, please contact the specialist partner or installer from whom you purchased your storage system for pricing and ordering information.
Our home and commercial storage systems are sold exclusively through wholesalers and certified specialist partners.
