What was the project about?
Elia has been one of the most active TSOs in the domain of Demand Response in Europe. Big part of the ancillary services in Belgium is currently covered by Demand Response mainly from the industrial sector. In order to facilitate further flexibility from demand, Elia has been involved in different projects studying and demonstrating smart ways of exploring flexibility from even small consumers in the residential sector.
Having exploring the industrial and residential sector, Elia wants to facilitate the medium size consumers (tertiary sector) to unlock their flexibility. In order to get a first feeling of the needs and potential of the tertiary sector, Elia has conducted a demo on one of its own building (Building J in the site of Schaerbeek) that enabled to assess the controllability of 3 devices: a chiller (4 x 15 kW), an air handling Unit (10kW) and a humidifier (30 kW). Only products R1 and R3 were considered in the tests as target products.
The test showed that the chiller and the humidifier were able to deliver flexibility in an aggregated way, in other words their activation and hold-on times fulfilled R1 & R3 provision requirements. We also acknowledged learnings from the test. The main one being that controllability of the load is not guaranteed. Devices sometimes cannot be curtailed as they are following a given operation schedule and are bound to strong interdependencies with other devices.