(IMAGE) Paul Scherrer Institute Caption Hydrogen production requires a lot of space: unused areas must be available for generating electricity from wind or solar power as well as for electrolysis – the actual production process, which also uses large quantities of water. A recent study by PSI led by first author Tom Terlouw identifies the best regions for producing hydrogen to meet the high demand expected in the future. Credit Paul Scherrer Institute PSI/Mahir Dzambegovic Usage Restrictions PSI provides image and/or video material free of charge for media coverage of the content of the above text. Use of this material for other purposes is not permitted. This also includes the transfer of the image and video material into databases as well as sale by third parties. 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.