The 55% increase in earnings was attributed to its investment in German offshore projects and a growing asset base.
Tennet installed three converter platforms for offshore projects in the German North Sea: BorWin 2, HelWin 2, and SylWin 1 – a total capacity of 2.35GW. Each platform should be operational in 2015.
Its investment in Geman offshore also includes connection to the 108MW Riffgat project.
The Dutch transmissions specialist also agreed a deal with the country's government to construct an offshore grid network connecting the 3.45GW planned projects to the grid in a structured and standardised approach.
In February, Tennet sold a 67% stake in its 900MW DolWin 3 to infrastructure fund Copenhagen Infrastructure Partners (CIP) for EUR 366 million.