Energy transition from fossil-based to zero carbon is the pathway for the world to meet future climate goals by 2050 according to the Paris Agreement. However, a real challenge faces us: how to rapidly manage the implications of variable renewable energy sources (VREs)? The increased share of sources such as solar and wind calls for the new development of system operating procedures and market implementation, including real time forecasting, faster scheduling, and ancillary services with more active engagement on the demand side. A radical transformation is important, in the way we supply, convert, transfer, and use energy, with more attention to handling dynamic balance: time matters.