Greenhouse emissions are a significant factor in the well-known problem of global warming. Thus, the European Union has developed a strategy to fight the phenomenon: the plan aims to create an economy with net-zero greenhouse gas emissions by 2050. Energy Systems Integration (ESI) is considered key to reducing greenhouse emissions in the energy industry. ESI technology has been developed to connect different Power Industries, such as gas, electricity and heating, to exploit all the synergies and efficiencies of the networks. Providing a holistic view of the energy industry, ESI integrates the use of innovative Distributed Renewable Energy Systems (DRESs) with storage and conversion systems for a clean and affordable energy supply.