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The MaStR web portal www.marktstammdatenregister.de is available to all market players and the public since January 31, 2019 to disposal.
Registrations of power generation plants can only be done via the new web portal. This also applies to solar systems, battery storage systems and CHP systems.
The requirements and deadlines set out in the Market Master Data Register Ordinance (MaStRV) apply to registrations in the MaStR.

By asking please use the official contact form or contact the MaStR hotline under 0228/14-3333.

For general questions about the registration process and especially for Questions about the registration of solar systems, we recommend the registration aids and the registration of a PV system.
You will also find a list of frequently asked questions (FAQ) in the general help.

The MaStR in brief

Market master data register (pdf / 490 KB)

Factsheet on the market master data register (pdf / 251 KB)

FAQ on MaStR


Video tutorials (on YouTube)

News

The market master data register has been online for two years and over 95% of the systems are registered. With your registration you have made the register what it is today: the database of the energy transition.
The Federal Network Agency is aware that science, network operators, politics and the general public are beginning to use the data.

What is the MaStR for?

Recourse to the master data of the MaStR enables a significant increase in data quality for many energy management processes and represents a simplification. In the future, many reporting obligations to authorities can be standardized, simplified or completely eliminated through the central registration.

The previous system register and the PV registration portal of the Federal Network Agency are combined in the MaStR. After the MaStR web portal has been started, both systems will be discontinued and their functions will be completely taken over by the MaStR.

Reporting obligations and deadlines

Solar systems, CHP systems, stationary battery storage systems and emergency power generators have to be registered in the same way as wind energy systems or conventional power plants. In addition to the system operators, the other players in the electricity and gas market must also register, e.g. network operators and electricity / gas traders.

Note - Registration in the web portal does not have to be carried out personally. This can also be done by another authorized person (family, installer, service provider, etc.).

Payment claim - In order for the payments under the Renewable Energy Sources Act or the Combined Heat and Power Act to be paid out without any deductions, the registration obligations specified in the ordinance must be observed. Otherwise there is no due date for the right to a payout!

Type of plantInstallation-
date
Registration deadlineannotation
EEG and CHP systemsbefore July 1, 2017January 31, 202124 months after the web portal was launched
from July 1, 20171 month after commissioning the system
EEG and CHP systems already registered between July 1st, 2017 and January 31st, 2019 *Not relevantRegistration in the web portal by January 31, 2021The system is considered registered in the sense of the MaStRV, but missing data must be entered in the web portal **
Commissioning dateRegistration untilannotation
before July 1, 2017January 31, 202124 months after the web portal was launched
from July 1, 2017July 31, 20196 months after the web portal was launched

Projects

Projects must be registered together with the granted approval within one month of the announcement of the approval.
For plants that do not require approval under federal law, there is no registration obligation under the MaStRV and therefore no deadline.

Data changes

Changesrelating to data entered in the market master data register must be adjusted within one month of the change.

Publication of register data

All registered units, locations and market players can be viewed in the MaStR. There are corresponding filter options in the public overviews. For each table export, up to 5,000 data records can be downloaded in the current unit overview or up to 25,000 data records in the extended unit overview. All datasets can be downloaded via the web service. You can find more information about this at this link.

Until the MaStR is expanded to include a total data export, you will find here at irregular intervals data extracts from the units, EEG systems, CHP systems, permits and market players. The data fields marked as confidential according to the MaStR regulation are not included in the MaStR regulation in accordance with the data protection requirements.

The following published data contain the units reported by the system operators since January 31, 2019, including the associated objects, some of which have been checked by the responsible connection network operator and some by the quality assurance of the Federal Network Agency. Note that the most recent messages in particular may still contain errors or contain duplicates.

Due to the large amount of data, the data records were divided into several files. When the units are merged, duplicates can arise for the EEG, CHP and approval objects and the market players, which can be recognized by the respective ID. Market players without associated units (e.g. network operators) are only included in Part 1.

fileIs included
MaStR data registered from January 31, 2019 Part 1 (as of April 26, 2021) (xlsx / 177 MB) Market players without assigned units
Units in the federal states: Exclusive economic zone, Berlin, Brandenburg, Bremen, Hamburg, Hesse, Mecklenburg-Western Pomerania, Saarland, Saxony, Saxony-Anhalt, Schleswig-Holstein, Thuringia and no information
Associated EEG, CHP and approval objects as well as their plant operators
MaStR data registered from January 31, 2019 Part 2 (as of April 26, 2021) (xlsx / 189 MB) Units in the federal states of Baden-W├╝rttemberg and Rhineland-Palatinate
Associated EEG, CHP and approval objects as well as their plant operators
Units in the federal states of Lower Saxony and North Rhine-Westphalia
Associated EEG, CHP and approval objects as well as their plant operators
MaStR data registered from January 31, 2019 Part 3 (as of April 26, 2021) (xlsx / 196 MB) Units in the federal states of Lower Saxony and North Rhine-Westphalia
Associated EEG, CHP and approval objects as well as their plant operators
MaStR data registered from January 31, 2019 Part 4 (as of April 26, 2021) (xlsx / 229 MB) Units in the state of Bavaria
Associated EEG, CHP and approval objects as well as their plant operators

The following published migration files contain the units and systems prepared and migrated by the Federal Network Agency at the start of the web portal and represent the data status as of January 31, 2019, with which statistics can be created up to December 31, 2018. In the field of renewable energies, an almost complete data set should be available, whereas CHP or conventional units only contain the partial amount known up to January 31, 2019 (e.g. BNetzA power plant list as of November 2018 and CHP reports according to MaStRV between July 2017 and January 2019 ).

Migrated units for statistical evaluations until December 31, 2018

EEG register data and EEG funding rates

The EEG register data and EEG funding rates are published here.

Legal basis

On July 1, 2017, the ordinance on the central electronic directory of energy industry data - Market Master Data Register Ordinance (MaStRV) came into force.
The MaStRV regulates who has to register and which units or systems have to be reported. The amendment to the MaStRV came into force on November 21, 2018. The deadline regulations that became necessary due to the delayed start of the MaStR web portal were adjusted there.
Further information on the amendment to the MaStRV can be found in the Federal Law Gazette.

Use of the data by authorities

According to Section 16 (3) MaStRV, the Federal Network Agency gives the following authorities access to data that is not published under Section 15 (1), including personal data:

  • General Customs Directorate for the collection of energy and electricity taxes on the basis of the Energy Tax and Electricity Tax Act and ensuring uniform taxation

Web service

In addition to the manual input and processing of data via the MaStR web portal, two central MaStR functions should be able to be processed automatically in a machine-to-machine communication via web services. This concerns the automated data retrieval and the Network operator check. You can find more information under the following link:
https://www.marktstammdatenregister.de/MaStRApiDokumentation

additional Information

The concept of the market master data register was consolidated and further developed in the course of workshops and numerous bilateral discussions. Here you get to the history.

You can find more background information on the MaStR help pages.