Vattenfall readies first three-way hybrid

Vattenfall has arranged the finance to build a new hybrid project in the Netherlands, investing €35 million to add solar and battery components to an under-construction wind site.

Vattenfall's graphic for how the Haringvliet site would look when completed in September 2020
Vattenfall's graphic for how the Haringvliet site would look when completed in September 2020

The €61 million Haringvliet hybrid site on Goeree-Overflakkee in South Holland will comprise 22MW of wind capacity, 38MW of solar and a 12MWh battery.

It is the first time Vattenfall will have combined all three technologies at a single site.

"The batteries are primarily intended to keep the network in balance," said Margit Deimel, director of large-scale solar at Vattenfall.

"In addition, they can also serve as storage in the future. When the wind is strong or when the sun shines a lot, we store energy.

"When there is not enough wind or sun, we supply green energy from our batteries. Generation, storage and grid connection use the same infrastructure and we can operate more economically thanks to synergy effects," Deimel added.

Vattenfall’s Dutch subsidiary Nuon is already constructing the wind portion of the project, which will comprise six Nordex N117 3.6MW turbines.

The developer has now given its approval for the solar and battery elements. The whole site is due online in September 2020.

German car manufacturer BMW is supplying the batteries, which will be installed in 12 shipping containers at the site.

"Hybrid power plants are an important building block for us in the direction of 100% fossil-free power generation," said Gunnar Groebler, head of wind at Vattenfall.

"The complementary wind and solar generation profiles reduce the load on the grid compared to a single generation technology. Hybrid systems provide less pronounced peaks and we see fewer total times without production.

"This leads to a more efficient use of the network infrastructure. In addition, the costs for grid connection are significantly reduced compared to stand-alone systems.

"This will reduce the cost of renewable electricity and ultimately benefit customers," added Groebler.

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