Plan a new PV system

Regular PV systemYou want to use one or more suitable surfaces for an individually planned solar system, such as your house roof, garage or carport.More scope for system size and electricity generation. Usually higher purchase costs and more installation work.Assess this system typeSelectedBalcony PVYou want to generate your own solar electricity with a few panels and a smaller budget, for example on a balcony, terrace or garage roof.Usually lower purchase costs and less installation work. The system’s power is limited.Assess this system typeSelected

Both system types can include several surfaces facing different directions. A battery is optional in either case.

Which system suits my plans?

Balcony PV is an option if you want to use a small area or start with a smaller budget. Regular PV offers more scope if you want to use more space and generate more electricity. It is individually planned and connected by a qualified installer.

Solar electricity you use yourself reduces the electricity you buy. How much you can use depends on sunlight and your consumption throughout the day. Whether the purchase pays off also depends on the total cost.
For a regular PV system, the calculation can include payment for surplus electricity exported to the grid. For balcony PV, Voltary assumes no income from exported electricity.

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 are you planning?

Choose your data basis.

Beta version: feedback welcome