Storage potential of the Local Virtual Power Plant based on μCHP-devices

Abstract

Micro-Combined-Heat-and-Power-Plants (μCHP) are one of the key technologies for the energy transition, because they are connecting electrical and thermal energy. By combining and coordinating μCHP plants in a Local Virtual Power Plant (LVPP) there full potential can be used. This paper presents the framework of such a LVPP which uses a hierarchal layer architecture. Thereby not only the heat and storage constraints in the households are considered also limitations of the low and medium voltage grid can be taken into account. With a numerical simulation of the LVPP the storage potential over the year is calculated. It is shown that the storable energy has only a marginal dependency on the temperature. The mean storage energy is about 2MWh per 1MW installed μCHP. In contrast the storage time various over a wide range within the year.