Buildings contribute significantly to global fuel-based emissions. The IMPEL programme by the U.S. Department of Energy, aimed at advancing innovative technologies for building decarbonisation, such as thermal energy storage and energy-efficient drones. IMPEL fosters collaboration between innovators, researchers, investors, and experts to create a market demand for these technologies. 

Decarbonisation, digitisation, and democratisation are pivotal in driving energy efficiency efforts. It is therefore important that these technologies are accessible, provide a return on investment, and offer environmental and social benefits.