Siemens Gamesa unveils first 10MW nacelle

Siemens Gamesa Renewable Energy (SGRE) has unveiled the first prototype nacelle for its SG 10.0-193 DD turbine at its factory in Brande, central Denmark.

Siemens Gamesa unveiled the prototype nacelle at a ceremony at its factory in Brande

It now aims to commission its 10MW prototype in the first week of January 2020, having originally targeted first power in autumn 2019.

The manufacturer first announced its 10MW turbine — a successor to its SG 8.0-167 DD model — in January 2019.

The upgrade to a 10MW nameplate capacity was made possible by increasing the generator’s diameter. Rotor diameter has also grown — from 167 to 193 metres.

With its 94-metre blades, the SG 10.0-193 DD has a rotor swept area of 29,300m2 and specific power rating of 342W/m2.

It will also be capable of annual energy production 30% greater than its 8MW predecessor, SGRE claimed.

The manufacturer plans to begin installing a prototype at the test site in Østerild, north Denmark in late November, and — weather pending — produce first power in January 2020, a spokeswoman told Windpower Monthly.

Commercial deployment is slated for 2022. The nacelles will be manufactured at SGRE's facilities in Cuxhaven, Germany.

SGRE has been named preferred supplier for Vattenfall’s subsidy-free Hollandse Kust Zuid I & II and III & IV wind farms in the Dutch North Sea.