Tennet pledges €22bn to ease grid congestion

NETHERLANDS/GERMANY: Dutch-German grid operator Tennet has pledged a €22bn investment in onshore and offshore electricity infrastructure over the next decade to relieve grid congestion.

Tennet's DolWin1 offshore grid connection was completed in 2015
Tennet's DolWin1 offshore grid connection was completed in 2015

Tennet made the announcement in its 2015 annual report in which it said forming an integrated electricity market across Europe was a strategic priority.

"This extra capacity will relieve grid congestion, for example on windy days, and will transport energy further afield to where it is needed," Tennet CEO Mel Kroon said in the report.

"It will ensure a steady supply of renewable energy across Europe in general, and in our markets in particular, and converge the electricity prices between the different European countries, ultimately making electricity cheaper for end users," he added.

In 2015, Tennet said it completed five offshore connection systems to German offshore projects: BorWin2 (800 MW), DolWin1 (800 MW), HelWin1 (576 MW), SylWin1 (864 MW) and HelWin2 (690 MW). This increased its transport capacity to 4.3GW from 11 offshore wind projects in Germany.

Connections for DolWin2, DolWin3, BorWin3 and Nordergrunde were under construction at the end of 2015.

Tennet was also selected by the Dutch government to develop its offshore grid.

However, the bill, which included Tennet's appointment, has been held up in the Dutch parliament, which could delay completion of the first connection from the Borssele cluster.

Tennet said a new bill is expected to be passed in early 2016 and  had continued preparations for the connections. 

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