14 October 2016
A heat pump is flexible for a smart grid when it can be switched on or off according to the load of the electric
network. To fulfil the heat demand asynchronously from the building, the heat produced by the heat pump has to
be stored intermittently. Here, we explore the limits of flexibility for a residential heating system with varying heat pump capacity when thermal storage systems (additional systems or building) are integrated. In our simulation study, the flexibility can be increased by up to 50 % at 10 to 20 % loss in seasonal performance factor.