+CityxChange proposes a novel, disruptive concept: the +CityxChange Community Grid. The proposed Community Grid, which acts like a Virtual Microgrid, is a group of grid-connected electrical resources, within a clearly defined electrical boundary in the Distribution System (e.g. sub-station), with a single defined logical connection point to the grid.
The main advantage of the +CityxChange Community Grid approach is that although the Community Grid is limited to a defined electrical boundary, participation within that boundary is voluntary.
Buildings or resource owners who wish to participate must be able and willing to offer production of energy, and/or flexibility from their production or consumption, i.e. they must become prosumers.
The +CityxChange Community Grid will have 3 layers:
- Cloud-based services for community grids.
- Production and flexible resources/assets, distributed over sites (buildings, production sites).
- Boundary and networking layer, operated within the Community Grid.