The Optimal Energy Management System (OEMS) is a module developed by ETRA I+D, focused on the monitoring and optimization of energy in a building as well as a set of buildings (district or neighbourhood). The OEMS receives information from sensors in the buildings and other modules in the PnH ecosystem, as well as information from external, and generates the optimal strategies for the grid.

The OEMS is responsible for the communication and energy exchange: 1) among all the Plug-N-Harvest buildings, 2) between the buildings and the energy networks and the communication between the buildings and 3) external actors (such as ESCOs or aggregators). The OEMS monitors the energy related to the assets (HVAC, lighting, electric heaters…) and the energy related to components of the ADBE (PV panels and batteries) in order to calculate the overall energy consumption, production and flexibility of each building in the district and generate the next set of control decisions for the considered appliances and assets.

The OEMS is composed by two levels of abstraction. On one side, the OEMS Building is in charge of early detection of incidents and local optimization, whilst a module OEMS District is the responsible to generate the common strategies for all the district. The OEMS Building receives measures from sensors in the buildings and executes the first calculations per each building. On the other side, the OEMS District is in deal of the common strategy for the whole neighbourhood. Both levels can be watched in next pictures.

The OEMS is not only able to make typical EMS operations, but it can extract the consumption/production baselines, detect failures in any of the assets of the buildings, compose demand response strategies based on the tariffs, estimate a flexibility based on the reduction of use of devices, etc. All these features are oriented to the saving and sharing of energy in the district without sacrificing inhabitants’ comfort.