The Heat and Buildings strategy (HBS) summarises the range of measures we are taking to ensure the market is in place to deliver on our ambition of 600000 annual heat pump installations by 2028. These include a mixture of financial support, market intervention and regulations, which have been designed to complement each other. The timing of these interventions will enable progressive and swift development of the heat pump market towards the required level. The interventions include: • The launch of the £450 million Boiler Upgrade Scheme in 2022 • The introduction of the market mechanism for low carbon heating – the Government has consulted on the introduction of this policy from 2024 • The introduction of the Future Homes Standard from 2025 • Action to phase out the replacement of fossil fuel systems off the gas grid – the Government has consulted on the introduction of this policy from 2026 for domestic buildings While the Government has not set any interim targets on the way to 600000 installations per year by 2028, these interventions will support the growth of the heat pump market and will be further strengthened by strong complementary action to improve the energy efficiency of homes and buildings. The Government has set a target to get as many homes as possible to EPC C by 2035, where practical, cost-effective and affordable. This targeted action across tenure types will help ensure as many homes as possible are ready for the move to low carbon heating.