Siemens signs up for 3.5GW HVDC project to deliver US wind

An HVDC transmission system, part of a future converter station, built by Siemens engineers in Germany

Siemens has entered an exclusive agreement with Clean Line Energy Partners to provide high-voltage direct-current (HVDC) technology for its Rock Island project, which will deliver 3.5GW of wind power from the Northern Plains to Illinois and states to the east.

In addition to providing detailed technical expertise to the development team, Siemens will work with Clean Line to develop, design and implement the HVDC converter stations for the $1.7bn project.

Rock Island is one of four Clean Line transmission schemes in the early stages of development. The US faces a dual challenge to modernise and expand its grid, and to bring wind power from remote areas to load centres.

Siemens is really good at this stuff and understands it,” Clean Line president Michael Skelly tells Recharge, referring to the…

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