FEMS App
Manual relay control
FEMS App
manual relay control
The FEMS App Manual Relay Control allows you to manually switch connected consumers (e.g., lighting, devices) on or off remotely via the relay board. You can control individual relay contacts directly through the online monitoring — without any automatic logic.
The FEMS App Manual Relay Control allows you to manually switch connected consumers (e.g., lighting, devices) on or off remotely via the relay board. You can control individual relay contacts directly through the online monitoring — without any automatic logic.
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
Through targeted manual control, you avoid unnecessary energy consumption. Consumers are only activated when they are actually needed — saving electricity costs and optimizing your energy use.
Sustainable
The app promotes conscious and resource-efficient energy management. Instead of letting devices run continuously, you switch them on only when required — reducing energy waste and protecting both the environment and the grid.
Key Facts
01
More Control
You switch devices on or off precisely when you need them — anytime and from anywhere.
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.
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.
"The big advantage for me is that I can control devices manually at any time — easily, directly, and exactly when it makes sense."
FAQ
Yes, provided that sufficient free relay connections are available. If you want to control more devices, you can expand your system with the FEMS Relay Board (8-channel TCP). Your installer will be happy to advise you.
The app is currently compatible with all common models of the FENECON Home&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.
