Optimizing PV self-consumption through electric water heater modeling and scheduling

This paper aims at presenting a Home Energy Management System (HEMS) module capable of scheduling electric water heater (EWH) appliances in order to optimize the PV self-consumption. A multi-period optimization model is presented. Laboratory tests were conducted to validate the model and to demonstrate the capability of this HEMS module to address recent challenges of self-consumption in a domestic environment. A commercial EWH device developed by Bosch communicating with the HEMS module is used to perform the tests.