energy saving

Welsh battery storage scheme begins commercial operation

A Welsh battery storage scheme operated by Swedish energy company Vattenfall, believed to be the UK’s largest battery storage project co-located with an onshore wind farm, has now begun commercial operation.  
Welsh battery storage scheme begins commercial operation
Courtesy of Belectric

The 22 MW battery@pyc project, which shares electrical infrastructure with Pen y Cymoedd onshore wind farm, will help National Grid maintain frequency levels and reliability of electricity supply on the GB transmission network. The project consists of six shipping container sized units, five of which house 500 i3 BMW manufactured battery packs. The new lithium-ion batteries have a capacity of 33 kilowatt hours (kWh) and are adapted for a stationary application. The project also incorporates a service known as Enhanced Frequency Response. It is located in the upper Rhondda, Cynon and Afan valleys.

“Vattenfall is on the road to a smart, digitalised future, free from fossil fuels within just one generation” said Gunnar Groebler, Vattenfall’s Head of Business Area Wind. “I can think of few other energy installations that better demonstrates what that future looks like than battery@pyc.”

Claus Wattendrup, Head of Business Unit Solar & Batteries, added that the project is Vattenfall’s largest battery installation to date. It makes use of synergies at existing wind farm sites, such as Pen y Cymoedd or the Princess Alexia Wind Farm in the Netherlands. Mr Wattendrup said that hybrid renewable parks will play a larger role in the future and that Vattenfall is leading this development.

The 76-turbine Pen y Cymoedd onshore wind farm is capable of meeting the equivalent electricity needs of more than 15 percent of households in Wales every year. It also boosts delivery of Wales’s climate change ambitions, displacing in an average year more than 300,000 tonnes of CO2 from fossil fuelled generation.

Image: An example of a typical inverter transformer configuration – the dimensions are much larger than those proposed for Pen y Cymoedd (Vattenfall)

For additional information:



Pen y Cymoedd Wind Farm

Baterías con premio en la gran feria europea del almacenamiento de energía
El jurado de la feria ees (la gran feria europea de las baterías y los sistemas acumuladores de energía) ya ha seleccionado los productos y soluciones innovadoras que aspiran, como finalistas, al gran premio ees 2021. Independientemente de cuál o cuáles sean las candidaturas ganadoras, la sola inclusión en este exquisito grupo VIP constituye todo un éxito para las empresas. A continuación, los diez finalistas 2021 de los ees Award (ees es una de las cuatro ferias que integran el gran evento anual europeo del sector de la energía, The smarter E).