Code "Spring" - Save 25€ on all balcony power plants - only for a short time!!

Federal Network Agency

Glossary lexicon

payback period

Degree of self-sufficiency

Balcony power plant

Reference counter

Lightning protection

Federal Network Agency


Roof alignment

Roof hook


Diffuse sunlight

Direct sunlight

Thin film solar module

EEG feed-in tariff


Power socket

feed-in tariff

Energy return time

Renewable energy

Fossil energy sources

Direct current

Global radiation

Base load

Island network


Kilowatt peak (kWp)

Kilowatt hour (kWh)

Communication gateway

Power density

Tenant electricity


Mini PV

Mini solar system

Module string

Module efficiency


Monocrystalline solar module

Angle of inclination

Off grid


Photovoltaic module

Plug-in solar system

Polycrystalline solar module

Low light behavior


Solar module

Solar module for the socket

Solar power storage

Solar inverter

Solar cells

Solar energy

Electricity mix



Watt peak


Alternating current

Wieland power socket


Bidirectional counter

The Federal Network Agency is responsible for monitoring and regulating the networks in Germany. This includes, for example, the postal network, telephony, but also the electricity, gas network and others. When it comes to a solar system, the Federal Network Agency has several meanings. The legislation, including the EEG feed-in tariff, regulates the registration procedures between system operators and network operators, etc. The Federal Network Agency is also responsible for approving access for a solar system to the public power grid. The Federal Network Agency would like to know which systems produce electricity in order to ensure network security. For this reason, you must register the commissioning of your solar system with the Federal Network Agency in the MaStR (market master data register). (On-line).

Here you will find instructions on how to register your balcony power plant with the Federal Network Agency .


Forgot your password?

Don't have an account yet?
Create account