Keir Starmer has vowed to create a state-owned energy company to help lower fuel bills if his party wins power at the next General Election.
The Labour leader said a new enterprise, Great British Energy, would boost the supply of renewable power by harnessing the country's sun, wind and waves.
He told Labour 's conference in Liverpool: "We will set up Great British Energy within the first year of a Labour government. A new company that takes advantage of the opportunities in clean British power and because it’s right for jobs, because it’s right for growth, because it’s right for energy independence from tyrants like Putin.
"Yes conference, Great British Energy will be publicly owned. None of this will be easy – it won’t be like flicking a switch. It will mean tough battles on issues like planning and regulation.
"But when the Tories nay-say and carp, remember this: the road to net-zero is no longer one of stern, austere, self-denial. It’s at the heart of modern, 21 st century aspiration."
Starmer also said his government would be "different" to the Liz Truss Conservative one.
He told delegates: "My government will be different. We will run towards the challenges of tomorrow. We will get us out of this endless cycle of crisis. And we will do it with a fresh start, a new set of priorities and a new way of governing.
"But it won't be easy. And the first step must be to tackle the cost-of-living crisis. The Prime Minister has finally accepted there's no alternative to Labour's plan to freeze energy prices.
"When she was arguing against 'handouts', Labour provided the clarity our nation needed. We said: 'this winter, not a penny more on anyone's bills'."
Starmer said people were “crying out for change; and looking for the decisive leadership that he could offer".
He said Labour offered voters hope, adding: "They need to know we can be a reforming government with clear answers to the big challenges they face.
"That we can grow the economy and raise living standards for everyone, not just a privileged few. Tackle climate change by creating new jobs, new industries, new opportunities. Redesign our public services to unleash opportunity and provide security. Restore faith in politics as a force for good. Get Britain’s hope, its confidence and its future back.”
He promised a greener Britain “leading the world on climate change” as he proposed a state owned energy company to supply power at cost.
Starmer vowed to govern with integrity and said it was time to write a new chapter of Labour history..
He said: “In 1945, out of the rubble of the Second World War, we built a land fit for heroes. In 1964, we harnessed the white heat of technology to pay our way in a modern economy. And in 1997, we modernised a country held back by crumbling public services and outdated institutions.
“It’s time to write a new chapter of Labour Party history about how we built a fairer, greener, more dynamic Britain by tackling the climate emergency head on and used it to create the jobs, the industries, the opportunities of the future.”
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