Vattenfall plans 22MW battery storage facility at South Wales wind farm


batteryUtility Vattenfall plans to build its largest battery storage facility at a wind farm in South Wales.

Subject to a final investment decisions, the 22MW facility will be constructed at the 230MW Pen y Cymoedd wind farm in South Wales. Vattenfall, which won a 22MW, four-year enhanced frequency response (EFR) contract last year from National Grid, said the unit will provide grid balancing services via that service.

The announcement comes as Vattenfall announced a deal with automaker BMW for 1,000 batteries with a capacity of 33kWh, which it will use in all of its currently planned storage projects. The batteries are the same as those used in the BMW i3 electric vehicle.

“We want to use the sites where we generate electricity from renewable energies in order to drive the transformation to a new energy system and to facilitate the integration of renewable energies into the energy system with the storage facilities,” said Gunnar Groebler, senior vice president of Vattenfall and head of its wind business. “The decoupling of production and consumption and the coupling of different consumption sectors are in the focus of our work.”

See the announcement here.

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  1. 33kWh is the same energy storage as a 600 litre hot water cylinder. Now I know it doesn’t take an investment decision by government to but a 600 litre cylinder, so why on earth is this been quoted as storage – when its not. It seems that adding the phrase equivalent to ‘batteries solve energy storage problems’ is just a way to fool those without a physics GCSE into coughing up more money where there are far more effective energy storage systems that can make a real difference for very little relative investment.


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