PrefacePreface Κεφάλαιο σε Βιβλίο Book Chapter 2024-06-192022enSmart and zero-energy buildings and communities have a major role to play in the evolution of the building sector and of the electric grid (i.e. the smart grid) toward the necessary transition in line with current carbon neutrality policies, climate change mitigation and adaptation. This book focuses on smart nearly zero-energy buildings (NZEB), smart communities and smart grids.This book is a collaborative work between research and industrial partners in the framework of the Smart GEMS Marie Curie project (2015–2020). Research and training activities in Smart GEMS were implemented through the physical mobility (secondments) of staff between academic and industrial partners during a five-year period.http://creativecommons.org/licenses/by/4.0/Engineering, Energy and Architecture SetSmart Zero‐energy Buildings and Communities for Smart Grids Kampelis Nikolaos Καμπελης Νικολαος Wiley Smart nearly zero-energy buildings (NZEB) Smart communities Smart grids