A sustainable community energy system is an approach to supplying a local community - ranging from a few homes or farms to entire cities - with its energy requirements from renewable energy or high-efficiency co-generation energy sources. Such systems are frequently based on wind power, solar power, biomass, either singly or in combination. Community energy projects have been growing in numbers in several key regions. This book provides an overview of existing and emerging community energy technologies. Topics covered include data-driven methods for prediction of small to medium wind turbines performance; optimisation of wind farms for communities; financing for community wind and photovoltaic project development; community-level solar thermal systems; solar water desalination for small communities; community solar photovoltaic projects; assessing wind loads for urban photovoltaic installations; design optimisation of multi-energy hubs for community energy projects; battery based storage for communities...