questionText: To ask the Secretary of State for Energy Security and Net Zero, what assessment his Department has made of the potential contribution of heat battery technology to the Warm Homes Plan; and what steps he is taking to support the (a) development and (b) deployment of heat batteries in domestic heating systems.
answerText: Heat batteries are a promising technology because they utilise time-of-use tariffs, do not require outside space, and can be cheaper to install than heat pumps in some circumstances. However, they are also less efficient than heat pumps and will therefore...
heading: Heat Batteries: Warm Homes Plan