The government’s net zero ambitions will be expensive and will require infrastructure improvements that carry a political cost

Ed Miliband’s decision to give the go-ahead for the construction of three big solar sites in eastern England is a major boost for renewable energy generation in the UK and has been welcomed by green campaigners. But many other changes are needed in the way electricity is generated and transmitted if Britain is to achieve its net-zero ambitions. Here we sum up some of the issues and headaches that lie ahead.