Energy supply We want London to have secure, affordable and low carbon energy. Energy in buildings Working to reduce energy demand in buildings. London Heat Map The heat map is an online tool you can use to find opportunities for decentralised energy (DE) projects in London. Environment publications Climate Change Mitigation Delivering London’s Energy Future is the Mayor’s climate change mitigation and energy strategy. London Energy Plan Scenarios for meeting London's energy demand to 2050 Smart Energy The Mayor is also interested in how decentralised energy can form part of a Smart energy system. Environment newsletter Sign up now to receive updates on environmental policy, projects, events and opportunities.