"One of the key investments is in a unique solar powered battery re-charging centre. Built by the Austrian company Cellstrom, the centre is a shed-sized box with 24 solar panels on it that houses a revolutionary liquid-based [Australian] battery.
http://news.bbc.co.uk/2/hi/europe/7669522.stm
"Cellstrom develops, produce and supply energy storage systems based on [UNSW] vanadium redox flow batteries integrated with photovoltaic and/ or other renewable energy sources as complete solutions.
http://www.cellstrom.at/index.php?id=17&L=1