Deutsche Windtechnik Sweden has signed of a full-maintenance contract with Wallenstam for 23 Vestas V90 turbines, spread across nine different wind farms in southern Sweden.
The deal covers servicing until the machines reach 30 years of age, significantly exceeding the average operational lifetime of 20 years.
This long-term cooperation represents Deutsche Windtechnik Sweden’s first foray into extending turbine lifespan on the service level by 10 years, extending operational time by 50%.
Property company Wallenstam said it chose Deutsche Windtechnik for its flexible and customer-centric contract design, extensive maintenance experience, and in-depth understanding of wind turbine technology.
“Deutsche Windtechnik is the highly skilled partner we need to maximize the sustainability of our turbines without compromising on quality,” said Wallenstam energy manager Patrik Persson.
“Together, we have developed a contract that sustainably and economically spreads the risk for both parties regarding major components throughout the contract term,” he added.
“They are meticulous in knowing how long wind turbines can be kept in operation.
“The contract ensures the reliable operation of our wind farm well beyond the average lifespan, which fully sustains our portfolio with renewable energy and a surplus fed into the Swedish power grid.”
Deutsche Windtechnik Sweden Managing Director Linus Sturesson added: “We designed the contract in close collaboration with Wallenstam, taking into account both Wallenstam’s needs and the turbines’ requirements based on their progressing age.
“With our customer-focused approach, the contract also provides flexibility in maintenance planning by allowing for adjustments based on future electricity price fluctuations.”