Application | WInd Farm

coal, gas and nuclear power plants. “With the water battery and hybrid towers, we are making wind power even more attractive and efficient as an energy source, setting new records at the same time”, says Josef Knitl, CEO of Max Bögl Wind AG. The natural energy storage in Gaildorf is the cutting edge of the concept. The three turbines in the valley generate 16 megawatts and the capacity of the storage is 70 megawatt hours. This enables them to compensate for up to 5 hours of calm, but also to cover shorter discrepancies between generation and demand in the grid. Switching from feeding into the grid to storage or vice versa takes just 30 seconds. This increases flexibility and opens up additional sources of income, as the plant can offer well paid grid services to compensate for instability and changes in the grid frequency or to provide idle power. FURTHER PROJECTS ANTICIPATED Max Bögl will be marketing the concept worldwide in the future and LAPP is also in the running for other Max Bögl projects all over the world. For LAPP, this is a welcome challenge. The company can produce the required cables at plants in Germany and throughout Europe; the LAPP Center of Competence in Singapore and production sites in China, India, and Korea are also major supply points. Andreas Müller says: “We also have ample know-how in Asia to supply major orders for wind power plants with premium quality.”

LAPP is the supplier for the cables in the tower. The exact specifications, such as dimensions, temperature, torsion, and weater resistance were stipulated by GE.

terms of the electrical equipment, including the cables in the nacelle and the tower. LAPP has already supplied cables for the nacelles in other GE plants and is listed as an approved supplier. Therefore, the company was approached by Max Bögl Wind to supply the cables for the tower in Gaildorf. “We receive a specification from GE, which lists the exact specifications for each cable, including dimensions, temperature, torsion and weather resistance, and much more”, says Andreas Müller, the main responsible for the wind power sector at LAPP. LAPP completed the order on time. In a container at the construction site, the last medium voltage cables are waiting on large wooden drums to be hoisted up into the tower, where industrial climbers on cables suspended inside the cable will pull up the cables and secure them in a wire frame. In a second adjacent container, some of the total of 100 drums are waiting empty for return transportation. The demand for storage solutions for decentralized energy generation using renewable energies is high. “We are proud to meet Max Bögl’s standards”, says Michael Bodemer, head of sales for projects in Germany at LAPP. “These are technically demanding cables, combined with a very high service level in terms of cutting, marking, labelling and special cable drums. Only companies that can offer a worry-free all round package will make it onto the shortlist.” STORAGE FOR THE ENERGY REVOLUTION Generation and storage at the same location is a big trend: Half of the photovoltaic units in Germany are now sold with a storage battery. Solar energy from the roof and storage in the cellar gives consumers independence from rising prices and contributes to stabilization of the grid. Generation and storage in a single location could now become the norm in the wind power sector too, as there is an urgent need for storage when an increasing amount of fluctuating wind power is being fed into the grid to replace the more constant and predictable production from

In a container at the construction site, the last medium voltage cables are waiting to be hoisted up into the tower, where industrial climbers suspended on cables inside the tower will secure them in a wire frame.

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