“Battery storage space plays a crucial role in restructuring the electricity supply,” says Matthias Vetter, battery expert at the Fraunhofer Institute for Solar Energy Systems (ISE), in an interview with Intersolar. Batteries constitute an important part in solar energy generation as they regulate the supply ensuring grid stability, and store any excessive energy produced, at least in the short to medium term. The current research and investment in battery technology is attractive for the photovoltaic industry. Today’s political setbacks for the industry, most recently the planned cuts in solar subsidies, due to a supposed flooding of the market with clean electricity, could be somewhat cushioned by the development in long-term storage capabilities. Presently the industry is investing heavily in technology and research into the optimum storage and life duration of batteries. Hybrid designs and powerful lithium batteries, such as those used in electric vehicles, are the focus of making solar energy use more efficient. It is not the sole idea of battery systems to store excess solar-produced electricity, but it is realistic, says Matthias Vetter. Germany will be “unable to avoid seasonal storage using hydrogen, and couple the use of electricity and gas network simultaneously”. With a supply of 30%, for example, storage systems for the energy transition are much debated. Also at the Intersolar Europe Conference on 11 June 2012 in Munich, the different battery technologies and their respective application areas will be discussed by a panel of experts in the Electricity Storage lecture series. A subsequent plenary debate will seek to clarify the question about which battery is most suitable for each application.
Milk the Sun is at the centre of redesigning the photovoltaic industry – therefore we will be present at the Intersolar Exhibition from 13.-15. June 2012. Visit us at booth B2.170D.