Sembcorp, GE awarded North Sea Sofia wind farm HVDC contract

March 29, 2021
RWE Renewables has contracted Sembcorp Marine and GE Renewable Energy’s Grid Solutions to provide the high voltage direct current electrical transmission system for the Sofia offshore wind farm.

Offshore staff

SINGAPORE – RWE Renewables has contracted Sembcorp Marine and GE Renewable Energy’s Grid Solutions to provide the high voltage direct current (HVDC) electrical transmission system for the Sofia offshore wind farm.

Sofia, with a generating capacity of 1.4 GW, will cover a 593-sq km (229-sq mi) area on Dogger Bank, 195 km (121 mi) off the UK’s northeast coast in the central North Sea.

Sembcorp Marine/GE began early design studies for the project last July, following their selection as the preferred supplier of the HVDC electrical transmission system. This is also Sofia’s second largest contract, valued at around £600 million ($830 million).

The workscope comprises design, manufacture, installation, commissioning, and maintenance of the offshore converter platform (OCP) and the onshore converter station, including all ancillary equipment.

Sembcorp Marine will be responsible for design, construction, installation, and commissioning of the OCP, comprising a 17,000-metric ton (18,739-ton) topsides and jacket foundation structure piled into the seabed, 220 km (137 mi) from the shore.

This will also be the most powerful and most remote OCP to date, the company claimed.

03/29/2021