• News
  • Press Releases
  • Renewable News
  • Wind

Siemens latest onshore wind turbine with larger and lighter blades receives type certificate from DNV GL


Type SWT-3.6-130 for medium wind conditions proven to conform to IEC 61400-22 standard

Hamburg, Germany – 6th October 2016, DNV GL and Siemens Wind Power (Siemens) today announced that the Siemens SWT-3.6-130 Onshore Direct Drive Platform wind turbine has been successfully type certified by DNV GL. This certification confirms that the new turbine complies with all the requirements of the international wind turbine standard IEC 61400-22 for conformity testing and certification.

The SWT-3.6-130 is the 2nd generation of wind turbine from the Onshore Direct Drive Platform. It features larger blades than previous generation of wind turbines, giving a rotor diameter of 130 meters. Thanks to this and additionally technical innovations and developments throughout the wind turbine, the SWT-3.6-130 will according to Siemens deliver 18-19% higher annual energy production across wind speeds than the previous model SWT-3.2-113 of the first generation of direct drive wind turbines. Siemens Wind Power offers the turbine with various hub heights.

As wind power has become mature and widespread, wind farm developers are facing the prospect that the sites with the best wind conditions have already been developed. They now have to investigate locations with less optimal wind conditions. To help them develop such sites cost-effectively, Siemens created its new Onshore Direct Drive Platform that maximizes yields in low- to medium- winds. 

“Type certification of wind turbines is crucial for securing financing of new wind farm projects. Hence, it is an important factor in time to market for new turbines. “We have a more than 20-year working relationship with DNV GL’s wind experts. This experience and knowing the internal processes on both sides helps a lot to streamline the type certification procedure, allowing us to meet our given tight deadlines” said Jonas Stenzel, Head of Global Product & Technology Type Certification for Siemens Wind Power.

“We have been working with Siemens since their earliest days in wind power. We are very proud to support them in their continuous efforts to deliver more efficient wind turbines to move the industry forward. Through an efficient type certification process, we help Siemens demonstrate they can deliver compliant products on time and provide trusted, independent certification for a hassle-free market entrance,” said Christer Eriksson, Service Line Leader for Type Certification. 

The certification process for the SWT-3.6-130 began with the certification of the prototype installed at Høvsøre, Denmark. The type certification included evaluation of the design supported by tests and measurements as well as inspections. Following the finalization of the type certification process, the official certificate has been handed over to Siemens at the WindEnergy Hamburg exhibition on the 28th September 2016.

About DNV GL

Driven by its purpose of safeguarding life, property and the environment, DNV GL enables organisations to advance the safety and sustainability of their business. DNV GL provides classification and technical assurance along with software and independent expert advisory services to the maritime, oil & gas and energy industries. It also provides certification services to customers across a wide range of industries. DNV GL, whose origins go back to 1864, operates globally in more than 100 countries with its 16,000 professionals dedicated to helping their customers make the world safer, smarter and greener.

DNV GL in the Energy industry

In DNV GL we unite the strengths of DNV, KEMA, Garrad Hassan, and GL Renewables Certification. DNV GL’s 2,500 energy experts support customers around the globe in delivering a safe, reliable, efficient, and sustainable energy supply. We deliver world-renowned testing, certification and advisory services to the energy value chain including renewables and energy efficiency. Our expertise spans onshore and offshore wind power, solar, conventional generation, transmission and distribu­tion, smart grids, and sustainable energy use, as well as energy markets and regulations. Our testing, certification and advisory services are delivered independent from each other. Learn more at www.dnvgl.com/energy