Energy security versus Secure Energy Towards a Sustainable and Resilient European Energy System with Energy Efficiency Resource efficiency: a new moto for the heating & cooling transition Opportunities for increasing energy efficiency and decarbonisation of heating in the Eastern and Southeastern Europe Varmeplan Danmark 2021 – En Klimaneutral Varmeforsyning Solceller i fremtidens energisystem og solcellepotentiale på større tage The feasibility of direct hydrogen use in renewable energy systems Demand side Transition to 4th Generation District Heating and Motivation Tariffs Towards a decarbonised heating and cooling sector in Europe – Unlocking the potential of energy efficiency and district energy Technical challenges and solutions for the integration of low-grade heat sources into existing networks and buildings Ownership structure, financing, and regulation Developing an effective strategic heating and cooling plan Enabling low-temperature renewable district energy in cities System integration of heat and electricity – how? 
