While Europe’s energy crisis fuels fears of a harsh winter for millions of European residents, much discussions are revolving around diversifying the EU’s energy suppliers and reducing European countries’ dependency on Russian hydrocarbons. Yet, solutions can also be found within Europe with the implementation of demand side measures to reduce energy consumption. Senior associate at the Institute for European Energy and Climate Policy (IEECP) Filippos Anagnostopoulos shares his expertise in energy efficiency in the building sector and what measures should be taken immediately and on the long-term to reduce energy-consumption.