The investment, which brings total spending to £120m since 2021, is thanks to funding secured from Public Sector Decarbonisation Scheme and NHS England.

Professor Bob Klaber, director of strategy, research & innovation and net zero lead at Imperial College Healthcare NHS Trust, said: ‘We are one of the biggest NHS trusts in the country and are strongly committed to reducing our impact on the environment through a range of schemes linked to our Green Plan.

‘Decarbonising our hospital buildings is a key part of this. I'm incredibly proud of our teams who have been able to secure over £110m funding since 2021, and of their expertise in delivering the schemes that are achieving such impressive impact.'

The trust said it was well on track to meet NHS England's 2032 target of reducing directly controlled greenhouse gas emissions by 47%.

The funding will be used to: install two additional heat pumps at Charing Cross Hospital, plus more heat pumps and the first solar panels at Hammersmith Hospital; improve insultation and cooling systems at Charing Cross and Hammersmith, improving energy efficiency; and install LED lighting and better gas and electricity controls across all hospital sites, reducing energy consumption and brightening spaces.

Trust data shows a 27% reduction in building energy greenhouse gas emissions at Charing Cross Hospital alone between 2023/24 and 2024/25.