Energy stored in liquid form (IMAGE) Chalmers University of Technology Caption Molecular Solar Thermal Energy Storage Systems, Most, is a closed energy system based on a specially designed molecule of carbon, hydrogen and nitrogen, which when hit by sunlight changes shape into an energy-rich isomer – a molecule made up of the same atoms but arranged together in a different way. The isomer can then be stored in liquid form for up to 18 years for later use when needed, such as at night or in winter. Credit Chalmers University of Technology | Per Erséus, Språng kommunikation Usage Restrictions Images provided in Chalmers University of Technology press releases are, unless specified otherwise, free for download and publication as long as credit is given to the University and the individual creator. Cropping and rescaling of the images is permitted when required for adaptation to the publication’s format, but modifications that would influence the message and content of the original are not. The material is primarily intended for journalistic and informative use, to assist in communication and coverage of Chalmers’ research and education. Commercial usage, for example the marketing of goods and services, is not permitted. We kindly request credit to be given in the following format where possible: Image/Graphic/Illustration: Chalmers University of Technology | Name Surname License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.