SuSy.house is a free-to-use online resource for householders who want to save energy, improve their wellbeing, and contribute to the larger objective of Net Zero. We offer our users 'green upgrades' and ready-to-use tools from their first visit, and we provide opportunities to share knowledge, join friendly competitions and participate in buyers' co-ops and VPPs that are designed to keep them coming back. We're actively seeking local installers to join our 'trusted contractor' scheme, and we're always glad to make contact with energy companies... or any supplier who's interested in decarbonization.