The Green, Green Houses of Wales

Building is scheduled to start in spring 2020 on Parc Hadau in Pontadawe (South Wales) to construct one of the world's first zero-carbon neighbourhoods, generating more energy than it uses (https://www.theguardian.com/environment/2019/dec/23/net-zero-carbon-neighbourhood-to-be-built-in-south-wales). The 35 homes will have solar panels, storage batteries augmented by ground source heat. They will also use innovative insulation and ventilation throughout. This all sounds very good but we really need a major modification of much of the existing housing stock to combat climate change.