Thousands of miles of new power lines are needed to deliver climate targets and energy security, but bills will rise in the short term and opponents are mobilising

Britain is embarking on one of the largest overhauls of its electricity grid in generations – a megaproject in which five times more infrastructure will be built by 2030 than was constructed during the previous three decades.

Tens of billions of pounds are being spent on new pylons, subsea cables and converter stations to connect a growing fleet of wind and solar farms and carry clean power to where it is needed.

Labour has approved a wave of renewable energy projects, but turning plans into power remains slow. Why is that?

Labour has a race on its hands if it is to lock in its promise to achieve a virtually zero-carbon electricity system by 2030.

Britain’s next prime minister will have to move fast: the climate emergency is raging, high energy bills are driving up the cost of living and the reactionary right is threatening a fossil fuel push if it wins power.