London Mayor Boris Johnson has announced an additional £12 million to expand a city-wide building retrofit program.

The new funds will extend London’s retrofitting work, which since 2008 has updated more than 400,000 homes and over 350 public buildings with LED lighting, boilers, insulation, solar panels and double glazing.

“We need to do everything possible to make the most of our resources, reduce carbon emissions and create a more secure, cost-effective and sustainable heat and power supply across London,” Mr Johnson said.

“Retrofitting older homes and buildings has a pivotal part to play in this, while also helping to save us all money on fuel bills. With these innovative energy saving technologies, London is leading the way as a 21st Century world city.”

Projects already underway include:

  • the St George’s teaching hospital in Tooting, with a £12 million investment that will reduce energy use by 39 per cent and cut over 6000 tonnes of carbon emissions a year
  • in Croydon, a £20 million investment to help retrofit 30 civic buildings including schools and libraries
  • in Hackney, a £7 million project to create a communal gas heating network to replace expensive individual electric heating in more than 800 homes across 10 blocks of social housing, reducing energy bills by 56 per cent with average annual personal savings of £980 for over 1500 tenants
  • the Lee Valley Heat Network, an project to provide low carbon heating in the form of hot water through a system of pipes to tens of thousands of homes across north London, reducing the carbon footprint of each home by around 50 per cent
  • the installation of low-carbon heat and cooling systems across the Tate’s London art gallery estate – including the Tate Modern, Tate Britain and its local storage facilities – to achieve a 25 per cent annual energy saving and a 45 per cent reduction in the Tate Modern’s gas consumption alone

The mayor’s retrofitting program consists of investment through the London Green Fund, and development support through the Mayor’s RE:FIT (for public buildings) and RE:NEW (for homes) schemes.