Solar and wind energy:
Energetically combined

The basis for our future-oriented technology is the combination of solar and wind energy as well as globally proven processes. Initially, solar rays are collected according to the proven CSP method and converted into thermal heat. The collected heat/energy potential is converted into electricity using the Carnot process – well-known in the energy industry – via an innovative, efficient turbine generator.

In this way, the solarwind technology achieves a worldwide trend-setting use of solar radiation. Compared to other technologies, it also requires less land area per installed kW. Conventional wind turbines are used to convert the wind energy into electrical energy.

From volatility to stability

Given the multiple properties of water as a CO2-free energy source and raw material, a thermal storage technology was chosen for the conversion and storage of solar energy. Power peaks and troughs are balanced out on the solar side via the energy storage system in conjunction with the turbine generator of the Carnot process.

solarwind Tracker

The solarwind tracker is one of the core components of the solarwind technology and serves to achieve the highest possible use of solar energy in conjunction with the hybrid turbine. The tracker also embodies the ambition to achieve synergy effects in technical and economic terms (economies of scale) wherever possible. The design corresponds one-to-one to the collector of the solarwind Energy Tandem and is the world’s first collector equipped with parabolic troughs which, thanks to double tracking, is always at right angles to the sun and thus creates equatorial conditions for the utilisation of the sun’s rays.

Together with the efficiency of the hybrid turbine, it guarantees the productive, cost-efficient conversion of solar energy into green electricity. The tracker system enables the solarwind technology to assemble power plants in a modular system according to the respective power requirements.

The solarwind Tracker is used for solarwind Campus 4-8 power plants as well as for retrofitting existing wind power plants.

solarwind Energy Storage

On the path to climate neutrality, sun and wind are the most important energy sources. Both are subject to strong fluctuations; the sun is also subject to the day/night rhythm which makes it difficult to produce a constantly available base-load energy.

Contemporary ingenuity led to an idea as simple as it was brilliant: a storage medium with two different temperatures but the same pressure was placed in a horizontal or vertical pressure vessel in such a way that the storage medium, enriched with energy in the collectors, is pushed towards the turbine circuit by the low-energy medium, which is already doing work, in order to release its energy potential to the turbine generator to produce electricity. The process, which is always repeated with solar energy supply, ensures constant energy availability.

Storage capacities

2 MWh to 18 MWh (depending on power plant size)

Operating conditions

Temperature max. 300°C, pressure 90 bar

solarwind water vapour-Hybrid-Turbine

Our solar Conversion Module

The economic viability of combined solar-wind power plants is largely dependent on the efficiency of the collection and conversion of the solar rays into electrical power and thermal heat. The land area required for the installation of the plant is also determined by the efficiency of the conversion. In this respect, the innovative ideas built into our energy transfer units have a variety of effects, because the development engineers of the solarwind technology have succeeded in using the entire electromagnetic radiation of sunlight down to a wavelength of 1 mm, electrically as well as thermally. This results in the following advantages:

  • A 30 % higher electrical utilisation efficiency compared to photovoltaics.
  • The additional thermal utilisation of solar energy amounting to 40% of the total radiation up to a wavelength of 1 mm.
  • A significant reduction in the land area required in relation to 1 kW installed. This is of particular importance, as Germany does not have sufficient open spaces to cover its energy supply exclusively with renewable energies.

These outstanding performance values are achieved by a gearless hybrid turbine, the basic design of which was developed in cooperation with a renowned turbine design company. The water-cooled modules are produced in outputs of 250 kW, 500 kW, and in future up to 1,000 kW.