Commercial customers

With our performance for more sustainability
and independence in your company

As a full-service provider, we accompany you all the way to your solar system

From consultation to after commissioning, we are your contact at all times. We adapt the photovoltaic system to your needs and take the future development of your company into account to prepare your company for future challenges –  this is what the Sonnis process and our value proposition stand for.

• Analyse location

We analyse the local conditions to determine the potential for realising a PV system.

• Analyse needs

We analyse your needs to provide you a tailor-made solution.

• Not only Status Quo!

We not only take your current energy consumption into account, but also the development of your company and any associated additional consumption of electrical energy or the use of other technologies such as electric mobility or heat pumps.

• Work out a solution

The customised solution is developed and presented to you by our competent project managers. Now you can realise your energy visions!

Personal support for your PV project

• Preparation of project documents and communication with all institutions

From the request to the distribution network operator to the registration of the photovoltaic plant in the market master data register, we take care of your project and make sure that you can enjoy your new solar power system.

• We are your contact even after the project has been completed

If you still have questions about your photovoltaic system after our instruction, we will be happy to help you. For extensions or questions about “old” systems, we always have a solution for you.

• 2 years free maintenance

Because we are convinced of our quality, we offer you free annual maintenance for the first 2 years.

Your advantages with a photovoltaic system at Sonnis


Reducing energy costs
Sustainability as a marketing tool


Less dependence
More planning security


Make your contribution to climate protection

Your participation is needed!

In order for us to create a personalised offer for you, we first need your contribution. In our enquiry form, we would like to locate your object so that we can create a 3D simulation. In the further steps we need, among other things:

As soon as we receive your complete documents, we will prepare an advance plan to analyse your solar potential. Afterwards, an employee will contact you to discuss your wishes and ideas and provide you with a personal offer.