Date Time Energy systems of tomorrow to be developed in giant lab DTU’s energy laboratory at Risø Campus is now being expanded, so that researchers and development departments in the energy industry can test the sustainable energy systems of the future in an even more realistic setup. Large fields with sun-tracking solar cells. Offshore wind turbines that can produce both electricity and hydrogen. Electric cars that recharge electricity, but returns it to the power grid when needed. These are some of the building blocks for the connected energy systems of the future. Added to this is an interconnection of electricity, heating and hydrogen systems for optimal utilization of renewable energy.