<https://www.greenunivers.com/category/stockage/batteries/>
<http://www.w3.org/1999/02/22-rdf-syntax-ns#type>
<https://www.greenunivers.com/2016/03/stockage-56-mw-installes-en-coree-du-sud-sur-un-projet-de-500-mw-142483/>