My Lords, the Government are investing £6.6 billion over this Parliament in improving energy efficiency and installing low-carbon heating. A further £6 billion has already been committed for 2025 to 2028. Heat pumps are the key technology for decarbonising heating in the near term and are essential in all 2050 scenarios. Therefore, the Government’s aim is for 600,000 heat pump installations annually by 2028. However, a range of technologies will be needed to decarbonise heating, including expanding heat networks in the longer term.