Siemens launches a new offshore giant

20 May 2020

Siemens Gamesa has announced the development of a 14 MW SG 14-222 DD offshore direct drive wind turbine.

The new WTG is designated SG 14-222. With a 14 MW capacity that can reach 15 MW using the company’s Power Boost function, the unit has a 222 m diameter rotor, 108 m long blades, and a swept are of 39 000 m2 swept area.

"We’ve gone bigger for the better,” stated Markus Tacke, CEO of Siemens Gamesa Renewable Energy. Andreas Nauen, CEO of the Siemens Gamesa Offshore Business Unit commented: “[We are] … determined to safely increase operational performance, minimise technology risks, and create a consistently lower Levelised Cost of Energy. The SG 14-222 DD demonstrates our drive to lead the way in a world powered by clean energy. In fact, just one unit will avoid approx. 1.4 million tons of CO2 emissions compared to coal-fired power generation over the course of its projected 25-year lifetime”.

The 222 m diameter rotor uses the new Siemens Gamesa B108 blade, which is cast in one piece using patented Siemens own blade technologies. The 39 000 sq m swept area allows the unit to provide an increase of more than 25% in Annual Energy Production compared to the SG 11.0-200 DD offshore wind turbine.

It also features a low nacelle weight at 500 tonne. This low weight enables Siemens Gamesa to safely utilise an optimised tower and foundation substructure compared to a heavier nacelle. Benefits arise in the form of lower costs per turbine by minimising sourced materials and reducing transportation needs.

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