Yes, you can install your solar power system yourself. However, this requires knowledge of photovoltaics, electrical work and practical installation. Installation errors can have expensive consequences, so it is important to inform yourself thoroughly and, where necessary, obtain professional support.

Work on your meter installation and registration with the grid operator may only be carried out by an authorised master electrician.

You can design roof, garage and open-ground areas using good software tools. These can even provide structural calculations, mounting plans and parts lists.

Choosing the right PV components is more difficult. Manufacturer descriptions make comparison challenging, and the capabilities and compatibility of different devices can be difficult for non-specialists to understand. Independent advice can help here.

Installing inverters, wallboxes and accessories is not particularly difficult for technically experienced people. There are also many useful videos with step-by-step instructions.

You can find many of these in our knowledge base under commissioning/installation.

Connecting PV batteries is often relatively straightforward and plug-and-play. In our experience, system owners who do this themselves usually manage without problems.

Officially, these tasks should be carried out by trained professionals. In practice, however, installers with experience in the exact selected model are not always available. This is why our customer service receives many enquiries from installation companies as well as end customers.

As a general rule, if incorrect installation causes a fault, the party responsible for the incorrect installation is liable. Manufacturers exclude warranty claims in such cases.

Correct software configuration of the PV system often generates questions for our service team. In many cases, instructions are not followed correctly, and sometimes manufacturer firmware updates are required. For this type of support we offer an online remote service.

Commissioning and configuration can vary significantly between manufacturers. Experience with the specific manufacturer and device type is helpful but can be difficult to obtain in advance.

Correct solar cable routing also requires knowledge. Cables should not be installed too tightly because of contraction in cold temperatures, should not be so loose that they move in the wind, should not rest on the roof surface or be exposed directly to sunlight, and should not remain in prolonged contact with moisture from leaves, bird nests or standing water.

Work on the meter installation and registration with the grid operator may only be carried out by an authorised electrical contractor. We can at least handle the registration and remote review of your system for you.

Finally, you should create a checklist and documentation, for example which modules are connected to which strings, plus measurements of string voltage, string current and other key values.

As a general rule, if incorrect installation causes a fault, the party responsible for the incorrect installation is liable. Manufacturers exclude warranty claims in such cases.

Officially, installation and commissioning should therefore be carried out by a trained professional, although in practice a specialist familiar with the exact selected model is not always available.

Device faults that are not caused by incorrect installation remain subject to the manufacturer's statutory warranty and guarantee obligations.

In practice, we have not experienced anything different.

If you purchase the components from us, we are your first point of contact for device faults and warranty claims.

Despite the many resources available online, a photovoltaic system and its components are complex, and many things can be done more or less well.

Before starting, you should speak to experts who can clearly explain what needs to be considered.

In recent years, PV systems were often offered at relatively high prices by the limited number of contractors because demand exceeded supply.

The small number of solar installers and electrical companies also had limited product choice and experience, and waiting times were long. Compare prices carefully and consider guided self-installation where appropriate.

The market eased in 2024 as demand declined, although Germany still appears to have too few qualified tradespeople overall.

Check the services and capabilities of local contractors and solar installers. We at inutec solarcenter are also happy to help. The name inutec stands for “Ingenieurbüro für Umweltmanagement und Technik” – engineering office for environmental management and technology.