Our manufacturers – sustainable projects thanks to long-term cooperation

We believe in success through our own strength and strong partnerships. Together with proven manufacturers, we are working on the long-term success of our projects at home and abroad.


New storage technology can stabilise the power grid. Bosch plans and implements battery systems.

Siemens Deutschland

Siemens solar inverters are ideally suited for medium-sized photovoltaic systems from 10 KW as well as large solar power plants. A high quality standard is achieved through the use of proven industrial components. Products and systems from Siemens set the highest quality standards, fulfil country-specific connection regulations as well as international standards and have a long service life.


The company specialises in efficient, reliable inverters. The modular design ensures uniform efficiency across the entire voltage range. This results in highly functional, grid-connected inverters that work optimally with all solar modules and generate maximum yield.


SMA Solar Technology AG is the global market leader in the development, production and distribution of solar inverters. Furthermore, with the Sunny Portal, SMA offers a clear monitoring system that is optimally suited for our purposes. SMA is represented in the most important countries of the photovoltaic markets. The company employs more than 3,500 people.


SOLARMAX combines forward-looking technologies made in Germany with over 30 years of experience in the market for regenerative power generation – for sustainable, efficient, and the profitable use of solar energy.

First Solar

First Solar understands that clean and affordable solar power is an essential part of the global energy mix. That’s why First Solar leads the way with the smallest carbon footprint, lowest water consumption and fastest energy returns in its PV technology.

Kaco new energy

KACO new energy is a manufacturer of power converters, in particular inverters and monitoring accessories for photovoltaic systems and power supplies for industrial applications. The company, based in Neckarsulm, Baden-Württemberg, is one of the pioneers of transformerless inverter technology, which has become the standard due to its high efficiency. From 1999 to around 2009, KACO supplied inverters with a cumulative output of 3 gigawatts and was the second-largest manufacturer in terms of inverter output sold in 2009. Siemens AG acquired 100 percent of the shares with effect from April 30, 2019.


We design our products with an uncompromisingly high standard of consistency and quality so that they are extremely durable and  reliable. It is only over time that they unfold their true potential. An effect on the individual,  the environment, and society.