Park controller according to VDE 4105 and NELEV (Solar package 1)
- For systems connected to low voltage, the general requirements of VDE 4105 apply.
- For systems connected to medium voltage, an EZA controller and certification were previously required from 135 kW Pav,e upwards.
- With the introduction of the NELEV, there are now exceptions to this rule.
- The new NELEV regulations (Solar Package 1) came into effect on May 17, 2024, aiming to simplify and accelerate PV expansion.
Systems that meet the following criteria fall under the new regulation:
- Total generation capacity (PV, battery storage, CHP, etc.) is below 500 kW
- Feed-in limitation of maximum 270 kW (Pav,e)
Legally compliant solution
Reactive power functions
Active power functions
approved Pav,e regulation

Integrated telecontrol technology - no PLC required!
IEC 101 or 104 and analog
Approval for common network operators
Simulation option
clear presentation of all data points
Energy management
Load management wallboxes
Battery control
Hot water preparation with surplus
Heat pump
Dynamic electricity prices used intelligently

Support and advice
Ecodata employees know the application rule of VDE 4105 exactly
possible errors and problems are avoided in advance
Informations
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Compliance with the network operator's legal requirements
Active Power Limitations
- Power limitation via command or ripple control signal (FWT)
- Permanent feed-in limitation in compliance with the Pav,e envelope curve
- P(f) – Active power as a function of frequency
Reactive Power Control Functions
- Q(U) – Reactive power as a function of voltage
- Q(U)db – Reactive power as a function of voltage with deadband
- Q(P) – Reactive power as a function of active power
- cos φ – Power factor control
- Q set – Fixed reactive power setpoint
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Telecontrol technology integrated in the device
- Connection to over 40 grid operators with integrated data point lists
- Full integration of complex remote-control technologies, such as Bayernwerk and e.dis
- Remote switching of load breakers, Q(U) protection messages, and more
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Marketing integration without additional hardware
All common direct marketers in Germany are integrated. Setup by installer or via remote maintenance.
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Monitoring portal for end customers and installers (on request)
Comprehensive Features
- Alarm notifications down to string level in case of failure
- Simple and user-friendly alarm handling
- Worldwide remote access for installers and customers
- Mobile app available for iOS and Android
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Full service including commissioning, bit testing via remote maintenance
- Visualization of all data points from the remote-control interface
- Simulation of data points
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Can be combined with load management or energy management
- Load management for up to 100 wallboxes
- Phase-accurate real-time control
- Static, dynamic, or hybrid control modes
- Prioritization of wallboxes
- Battery storage control
- Heating element control
- Heat pump integration
- Support for dynamic electricity pricing with weather and consumption forecasts
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Use the wizard to get a quick quote - see parking controller request
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String monitoring for central inverters
Detect failures at string level with our single string monitoring systems
- Phoenixcontact
- Solarmax
- Kaco Stringcontrol
Your questions our answers
Parc-controller
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Our network operator requires remote control technology - from whom can I obtain this?
Many network operators require the installation of remote control technology even for systems as small as 100 kW.
With SmartDog, you don't need an additional manufacturer for remote control technology or any additional hardware such as PLCs.
Whether the remote control technology uses the IEC 101/104 protocol, digital contacts, analog signals, or Modbus TCP, SmartDog always offers the right solution.
Selecting and configuring the remote control technology is extremely simple and intuitive.
Systems according to NELEV (Solar Package 1)
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I don't know how my large-scale installation is classified - VDE 4105 or 4110?
If a system is connected to low voltage, the VDE 4105 regulations always apply. For systems connected to a medium-voltage or high-voltage transformer, a distinction has been made since May 2024. Previously, a grid controller and certification were required for systems with a capacity of 135 kW or more.
Exceptions now exist under the NELEV (New Electricity Grid Expansion Ordinance). The new NELEV regulations (Solar Package 1) have been in effect since May 17, 2024, and are intended to simplify and accelerate the expansion of photovoltaics.
Systems that meet the following criteria fall under this new regulation and are classified as VDE 4105: Total generation capacity of the system under 500 kW (PV, storage, CHP, etc.) Feed-in limit of max. 270 kW (PV, E)
Our Park Controller Inquiry Wizard will ask you for specific information and provide you with a customized offer that meets the legal requirements.
https://beta.ecodata-sl.de/de/kontakt-support/parkregleranfrage#form
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Do I also need a parking controller for NELEV (Solar Package 1) systems?
BFor NELEV systems larger than 270 kW and smaller than 500 kW, which must be limited to 270 kW feed-in, a Pav,e controller is mandatory.
This limitation must be implemented by a Pav,e controller. The specifications of a Pav,e controller (the so-called envelope curve) must be adhered to and are extremely tight.
If the Pav,e controller does not operate extremely quickly (e.g., during changes in sunlight and cloud cover), this can lead to the system shutting down.
The certified Pav,e controller SmartDog meets this standard because it controls the inverters every 200 ms.
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Can I use simple meters with a Nelev system with Pav,e control?
No – many network operators specify very high accuracy classes for the measuring devices used.
Bayernwerk and its partners, such as E.ON, e.dis, etc., require an accuracy of 0.2 for voltage and current, and 0.2 for current transformers.
Only very high-quality devices meet this accuracy class. At Ecodata, you receive a package that meets all these requirements!
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Can I use any inverter?
If a Pav,e regulation is mandatory, the inverters must also have a Pav,e certificate.
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Do I also need a parking controller for systems under 270kW?
Many manufacturers require remote control technology.
SmartDog has this integrated, so you don't need any additional hardware.
In addition, SmartDog supports all reactive and active power control requirements stipulated by various network operators.
With SmartDog, you meet all requirements and are on the safe side!
Parc-controller generally
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Why should I use SmartDog as a parking controller?
So you can focus on your core business and avoid unpleasant surprises during commissioning.
From delivery of the parking controller and selection advice to remote commissioning, we are your partner every step of the way!
If you have any questions, our partner hotline and ticket support are available to assist you.
