In the energy and building sector, various energy policies are being promoted in relation to carbon neutrality, including energy independence, sharing, and participation based on building energy reduction and the use of renewable energy sources. Energy independence and sharing to realize a zero energy community are achieved through sharing and trading energy. Community refers to the extent to which physical, spatial, and social environments are shared based on locality. Community energy has different energy supply and demand and surplus energy generation depending on the type, characteristics, and configuration method of the buildings and systems that make up the community. In this study, community types are divided into six types by reviewing domestic laws and cases of community establishment and operation at home and abroad. In addition, the basic procedure for establishing an energy community unit plan and a plan for organizing community energy demand and supply sources are derived and proposed. The energy community is expected to have effects such as carbon reduction by saving energy and improving the energy independence rate of the entire community and individual buildings within the community.