What question is your article answering?What is the evidence requirement for BESS to be “controllable by a Demand Response Aggregator”?
This requirement needs a BESS to have the ability to be controlled by a DER Aggregator. This can be evidence that the inverter that controls the battery is able to be internet connected and can be controlled.
For example, a data sheet or fact sheet showing the make and model of installed battery or inverter, and includes that it is control capable, or an extract from a DRA’s compatible equipment list.