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  • Renewable energies

    Renewable energies are key to the climate-friendly supply of power and heat. In Germany, they were used to generate more than 190 billion kilowatt hours of electricity in 2016 – five times more than in the year 2000. Energy transition is also gaining in significance internationally. In 2015, the investments in renewable energies were almost double the amount spent on all fossil and nuclear generation technologies combined. Our German engineering and experience with the energy transition is appreciated worldwide: as the technical project developer, general planner or operator, we implement a broad spectrum of national and international energy projects.

    • More than just moving air: wind

      The generation of energy from wind power is an important and growing component of the STEAG energy business. We are building large-scale generation plants, advancing the international development of onshore wind generation facilities, and investing in wind farms abroad. 

      The service portfolio of STEAG Energy Services covers the entire value chain of plants for power generation: from project planning and engineering via operation management and optimization right up to intelligent IT solutions. With the WINDcenter, these services and our broad expertise are made available for the wind energy sector.

    • We use the power of the sun: solar thermal energy and photovoltaics

      Solar energy can be used in the form of solar thermal or photovoltaic energy. In CSP (Concentrated Solar Power), steam is generated with the help of solar radiation and converted into electricity using a conventional water-steam cycle. We have worked on plants using all three technologies: "Para-bolic Trough", "Linear Fresnel" and "Solar Tower", but also on hybrid plants with conventional power plants.

      SES investigates the feasibility of solar thermal projects worldwide, supports their implementation and ensures their successful and optimized operation. In the Spanish 50 megawatt solar thermal power plant Arenales near Seville, for example, SES was the responsible operator on behalf of the owner consortium for a period of 6 years.  

      In the field of photovoltaics, SES has significantly strengthened its position in the growth market of renewable energies by acquiring the subsidiary STEAG Solar Energy Solutions GmbH (SENS) from DMG MORI AG.

      SENS is a globally active service provider in the field of renewable energies with headquarters in Würzburg. From the development and turnkey construction of large open-space PV systems), maintenance and operational management to the creation and implementation of integrated energy solutions for trade and industry and the optimisation of energy requirements, SENS is the right partner for you.

      With over 8,000 installations in around 40 countries, the company has sound experience in the industry, particularly in the field of photovoltaics. What distinguishes SENS is the passion and pleasure it takes in its customers' success. Together, the 180-strong team at eight locations in Germany and abroad develops solutions day after day - on the sunny side of the energy revolution, innovatively and with the highest level of commitment. Find out more about SENS here.

    • Going deeper underground: geothermal energy

      Going deeper underground: geothermal energy

      Geothermal heat offers enormous potential as a source of energy. Geothermal energy is stored in the outermost layers of the earth’s crust and can be used to generate heat or electricity. STEAG is a market leader in Germany in developing district heating using geothermal energy. To date, it has mainly completed geothermal projects in Upper Bavaria, including the geothermal combined heat and power plant for the town of Unterschleissheim.

      Ninety-nine per cent of our planet is hotter than 1,000°C. Geothermal heat offers countless advantages over other forms of energy. It can be used around the clock and is extremely climate friendly. The principle of geothermal energy is simple: the deeper the hole in the ground, the higher the temperature. According to geoscientific evaluations, a temperature of between 5,000°C and 7,000°C prevails at the earth’s core. In turn, the amount of energy that the power plant operator can obtain from the earth’s natural heat also increases.

      STEAG wishes to tap into this potential and is planning the construction of a geothermal power plant in Indonesia. A geothermal power plant to generate electricity with a power output of up to 220 MW is being developed in Baturraden, at the foot of Mount Slamet – this is far more than the output generated by conventional German geothermal plants. SES engineers are available here as technical service providers – when developing the site, for example.

    • Using renewable resources: biomass

      Of all the renewable energies, biomass (when used as a solid fuel) is most similar to conventional fuels. The recovery of energy from locally-available biomass is already making a remarkable contribution to supply security today. For SES, it is therefore a matter of course to also consider new approaches to the use of biomass.

      We plan, build and operate thermal power plants for the recycling of organic waste and sometimes go the extra mile in providing new solutions. As a result, we have developed a concept for the energetic use of biomass in the form of bush in Namibia, for example. The entire value chain was reviewed – beginning with the harvesting and processing through to storage and finally resulting in producing electricity. This is a good example of how a problem such as massive bush encroachment can be transformed into a significant economic opportunity and energy resource.