Definition, advantages and challenges
An energy hub is a multi-carrier energy system consisting of multiple energy conversion, storage and/or network technologies, and characterized by some degree of local control. Energy hubs may exist on different spatial scales, from the level of a single building to a larger geographic region. Combined with energy storage, conversions between different energy carriers in an energy hub enables greater flexibility in energy provision. As such, energy hubs are particularly useful for enabling the integration of intermittent renewable energy sources such as solar and wind.
Real World Example
ehub – the Energy Hub Demonstrator at NEST – is an energy research and technology transfer platform aimed at optimizing energy management at district level and evaluating its influence on the overall energy system. In conjunction with the other Empa demonstrators NEST and move, ehub can be used to combine energy flows in the mobility, housing and work sector, test new energy concepts under real-world conditions and explore the potential for increasing efficiency.