An import or load limiting device is a piece of hardware and/or software that limits the demand (i.e. the amount of current drawn) by a premise(s). In the case of an EV charge point/Heat Pump, this can be thought of as an EV/HP curtailment scheme. This must be factored into calculations when populating the EV/HP application form. It is the responsibility of the installer to ensure that the Maximum Demand(s) stated are correct, factoring in the effects of any load limiting devices or EV/HP curtailment schemes. The load limiting device must also “fail-safe", i.e. when it is not operating or has failed, it must not result in the limitations of the connection being exceeded.
Please note that this FAQ and associated clarification only refers to import, i.e. EV/HP acting as demand only, and it is not applicable to V2G/grid export limitation, which is covered by ENA Engineering Recommendation G100