The e.manager energy management system is the all-in-one solution for manufacturer-independent monitoring and control of PV systems, wind turbines and other renewable energy generators.
Via the integrated VPN interface, the e.manager can communicate with all common direct marketers and implement both the requirements for direct marketing (direct marketing of electricity) and Redispatch 2.0.
Equipped with numerous interfaces, the e.manager can be connected to a wide range of inverters, energy meters and sensors, such as temperature sensors and switches/contacts, to handle feed-in management and a variety of control tasks, even in individual and complex system configurations.

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Monitoring

The e.manager energy management system is the all-in-one solution for manufacturer-independent monitoring and control of PV systems, wind turbines and other renewable energy generators.
Via the integrated VPN interface, the e.manager can communicate with all common direct marketers and implement both the requirements for direct marketing (direct marketing of electricity) and Redispatch 2.0.
Equipped with numerous interfaces, the e.manager can be connected to a wide range of inverters, energy meters and sensors, such as temperature sensors and switches/contacts, to handle feed-in management and a variety of control tasks, even in individual and complex system configurations.

Direct marketing

With the e.manager, direct marketing (direct marketing of electricity) of PV systems, biogas plants and wind turbines is easy.
Thanks to the direct marketer interface integrated into the e.manager, connection to the direct marketing partner is possible without additional hardware.
You get a single-source direct marketing solution that is optimally coordinated with the direct marketer and reduces the effort for you to a minimum.
For direct marketing, an encrypted connection to your direct marketer is established via the integrated VPN interface, and the necessary data, such as the current feed-in power and the setpoint (active power reduction), is transmitted to and from the direct marketer in encrypted form.

Direct marketing diagram: e.manager nD links PV plant and direct marketer via VPN
Diagram of a day with consumption, PV, feed-in and solar, with five explained control steps

Feed-in management

Suitable for systems of any size, the e.manager can implement the feed-in management guideline.

  • Power management via the grid operator’s remote-controlled ripple control receivers
  • Implementation of the 70% feed-in limit (the German rule capping feed-in at 70% of rated PV power), also taking self-consumption into account and optimising it
  • Logging of power reduction (curtailment)

In addition, the e.manager can implement both the dynamic 70% feed-in limit and zero feed-in. The inverters are only curtailed when the energy can no longer be used in your own home or business. This way, not a single watt-hour goes to waste.

  • VDE-AR-N-4110 certification for feed-in management in medium-voltage grids is in progress
  • Interfaces to telecontrol systems available
  •  

Self-consumption optimisation

With the e.manager you can control loads and battery storage to optimise your self-consumption and thus save energy costs.
To do this, you can easily create rules that control and switch relays, network sockets, roller shutters, ventilation, heat pumps, boilers, immersion heaters or other components depending on energy generation, energy consumption, solar irradiance, temperature, external signals or other parameters.
Bar chart: electricity costs without e.manager clearly higher than with e.manager
e.manager web interface: rule editor with rule 1 and conditions for residual feed-in and time
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Building-block pyramid: extensions stacked on the e.manager nD base

Modular and expandable

The unique modular system of the e.manager allows you to configure it entirely to suit your requirements and needs.

For this purpose, the e.manager nD Version 2 has expansion interfaces for connecting expansion modules.
This makes it easy and cost-effective to add further functions to the e.manager, such as temperature measurement, relays, A/D converters, I/O ports and many other interfaces. This also gives you the option of implementing individual solutions in the fields of home automation, energy management and control engineering. We will be happy to support you with the implementation.

Expansion modules with the following interfaces are currently available for the e.manager nD:

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Which e.manager is right for you?

Comparison of solutions

Solution e.manager nD Version 2 e.manager mc Version 2 Remarks
PV system monitoring  
Monitoring of other renewable energy generators  
Optimising self-consumption  
Direct marketing
photovoltaics		  *  * * optional
Direct marketing wind power  *  * * optional
Measuring energy consumption  *  
Measuring temperatures  *  * * optional, expansion
General measurement and control tasks  

Feature comparison

Feature e.manager nD Version 2 e.manager mc Version 2 Remarks
RS485 port 1 or 3 1* * expandable
Number of connectable devices up to 300 up to 100* * expandable
Number of different inverter manufacturers in one system 1 or 3xRS485, 3xLAN 1xRS485*, 3xLAN * expandable
Direct marketer interface * * *Additional software package
Connection for radio ripple control receiver  
70% feed-in limit  
Zero feed-in control  
Digital inputs 4 4  
S0 meter connection  
LAN port  
Wi-Fi * * *optional
Extensive options for creating rules  
Expandable with plug-in cards yes
- 4-20mA In
- 4-20mA Out
- digital Out
- Pt1000		 yes
- e.digital+rs485
- 4-20mA In
- 4-20mA Out
- digital Out
- Pt1000		  
Portal use free of charge free of charge  
Power supply 110-230V~ 110-230V~  
Dimensions 158x90x58mm 158x90x58mm  
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