David White joined Mixergy (an Oxford University spin out company) to commercialise their smart hot water innovation back in 2018, and has led on their expansion of smart hot water technologies. Mixergy’s is now market leader in hot water storage solutions for the carbon-free home. Offered by the largest contractor in the UK, British Gas, the largest utility in Portugal, EDP, and through various local distributors, it's ideal for the home, new build developments, or social housing projects.