Date:May 24, 2018
SPAIN: Siemens Gamesa Renewable Energy is trialling a redox flow battery at its test site in the north-east of the country.
![Siemens Gamesa's 2MW La Plana site near Zaragoza](https://cached.imagescaler.hbpl.co.uk/resize/scaleWidth/460/cached.offlinehbpl.hbpl.co.uk/news/OPW/SGRELaPlanahybrid-20180523012432209.jpg)
Date:May 24, 2018
SPAIN: Siemens Gamesa Renewable Energy is trialling a redox flow battery at its test site in the north-east of the country.