After ten years of research, scientists at KU Leuven have designed a solar panel to generate hydrogen gas from sun and water vapor. "Twenty of the panels can provide a family with electricity and warmth for a year," lead researchers Tom Bosserez, Prof. Johan Martens, Dr. Jan Rongé and Dr. Christos Trompoukis explain. Hydrogen gas can store and produce both electricity and heat and does not release greenhouse gases or toxic substances. By way of comparison: normal solar panels generate around 20 percent of the solar energy, but energy is still lost because the water is split into oxygen and hydrogen. The new panels immediately convert fifteen percent of the sunlight into hydrogen gas. One panel is also good for around 250 liters per day, a world record.