Smart City: the energy issue: a brief introduction -- City SmartNESS: the energy dimension of the urban system -- Smart city, urban performance and energy -- Energy and Spatial Planning: A smart integrated approach -- Towards the definition of the urban saving energy model (UrbanSEM) -- Energy Supply and the Territorial Processes as a New Paradigm of Sustainability in Planning Science and Practice -- Managing mobility to save energy through parking planning -- ISUT model. A composite index to measure the sustainability -- The Landscape Assessment for the New Energy Facilities. An integrated approach for Innovative territorial policies -- Technological change and innovation for sustainable cities -- Planning for the conservation of historic districts in Sardinia, Italy. Strategic and energy efficiency-related issues, and an ontological approach concerning a small town -- Cities dealing with energy issues and climate-related impacts: approaches, strategies and tools for a sustainable urban development -- Evolved Frameworks for the Integrated Development of Territorial Services -- Energy and climate change polices in Europe: Overview and selected examples from a spatial planning perspective -- Regional Local Development Strategies benefiting from Open Data and Open Tools and an outlook on the Renewable Energy Sources contribution -- Reshaping the urban environment through mobility projects and practices: lessons from the case of Palermo -- Geodesign: lost in regulations (and practice) -- Using Citizen-provided Information to Build Purposeful Knowledge for Planning: Principles, Requirements, and Three Examples.