5 easy steps to your funding

Disclaimer: Ostrom assumes no liability for the accuracy of the information. We recommend that you conduct your own research and carefully check the links provided.

Step 1: Are you eligible?

You are eligible for funding if you are a tenant, lessee or owner and own or live on property in Frankfurt.

However, as a tenant you need the permission of your landlord.

Step 2: Apply for funding

The funding must be applied for before purchase.

You can find the funding application form here: Climate Bonus funding application

Please note that not only the material costs of a mini solar system are eligible for funding, but also the costs for the necessary wiring and connection systems required to operate the system (such as the installation of outdoor sockets if none are available). However, only up to the amount of the module costs.

Step 3: Buy your balcony solar system

Choose the right mini solar system for you. The decisive factors are where you want to place it (balcony, garden or flat roof) and how many watts you need.

Step 4: Register your balcony solar system

As a new solar system owner, you only have to register your system in the market master data register.

Register with the Federal Network Agency here: www.marktstammdatenregister.de

Since April 26, 2024: Registration with a network operator is no longer necessary .

Step 5: Request a payout

Once you have purchased your mini solar system and installed it at the location you specified, you must now submit your proof of use. As soon as your proof of use has been checked, you will receive the subsidy amount.

Mini solar system bestseller

Im Überblick:

  • 1. Apply for funding

    Apply for the climate bonus from the city of Frankfurt and get up to 50% of your costs back. Do you have the Frankfurt Pass? Then you will even receive a subsidy of 75%.

    Apply for funding 

  • 2. Order a mini solar system

    Where can you get the most sun? Installation on the balcony or in the garden?
    Find the balcony power plant that best suits you and your needs.

  • 3. Register balcony power plant

    Register the balcony power plant within 30 days of installation. Quickly and easily in the market master data register!

    For registration 

Good for the climate and your wallet!

Let the sun work for you! Your mini solar system produces climate-neutral electricity for you and thus reduces your electricity costs.

Easy DIY installation!

All sets from our partner brands come with premium brackets that are tailored to your desired installation location. This makes the solar modules easy and safe to install.

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Particularly light solar modules

The particularly light mini solar system weigh only a few kilograms and are therefore particularly easy to install. They are as thin as cardboard and are therefore perfect for your balcony.

Solar for your balcony

A mini solar system is ideal for residents of apartments or townhouses with limited space who want to use renewable energy. It is particularly beneficial for those with south or west facing balconies to take advantage of maximum solar radiation and thus generate electricity efficiently.

Solar for your flat roof

Do you still have free usable space on your flat roof? With the plug-in solar devices for flat roofs, you can use this space to let the sun work for you.

All mini solar systems