In the year that has passed since Germany began offering subsidies for lithium-ion battery systems for residential use, around 4,000 solar-plus-batteries have been installed, the country’s Federal Solar Industry Association (BSW Solar) has announced.
The International Electrochemical Commission (IEC) will begin a programme of standardisation for redox flow batteries – which can be used for large scale energy storage applications – following discussions which were initiated in Japan in October 2013.