Analyze an existing PV system

Regular PV systemFor German rooftop PV with self-consumption and EEG surplus feed-in: commissioned from 1 August 2014, below 100 kWp and with one common commissioning date.A small installation can also be a regular PV system.This is my system typeSelectedBalcony PVA small plug-in solar system, for example on a balcony, terrace or garage roof. Its panels can also be spread across several surfaces.Also known as plug-in solar or mini PV.This is my system typeSelected

Unsure which system type you have?

The location, number of panels and number of surfaces alone do not determine the system type. What matters is how your system was connected and registered.

Regular PV system Balcony PV

Scope of the balcony PV calculation: We assess your balcony PV without an additional regular PV system or an existing battery. We assume no payment for surplus electricity exported to the grid.

Power limits and registration

This calculation supports up to 2,000 Wp of total panel capacity across all surfaces and a PV inverter rated up to 800 VA.

Plug-in solar devices qualify for simplified procedures in Germany under certain conditions. Before installation, check the connection and registration requirements for your system and whether the planned devices are compatible.

Federal Network Agency guidance

Without JavaScript: choose your system type and data source below.Regular PV system: Upload Data · Generate ProfileBalcony PV · up to 2,000 Wp / 800 VA: Upload Data · Generate Profile

Beta version: feedback welcome

Voltary is in beta. Errors and longer calculation times may occur. Feedback on results or usability helps us improve Voltary.

What type of solar system do you have?

Choose your data basis.

Beta version: feedback welcome