A full ADRRESS system has been tested in France , involving electricity producers and consumers as shown in the diagram below. The French field test focuses on the validation of the whole ADDRESS “value chain” going from Active Demand buyers to controllable appliances at consumers’ premises, but at a relatively small scale, with several tens of consumers, one MV feeder and several LV networks.
About thirty consumers used the equipment for several months.
This demonstration has been designed to contribute providing recommendations for future deployment on the cost reduction of demand response technologies, the role of consumer acceptance and consumer commitment, the verification / measurement of active demand product delivery, the reliability of the full value chain and the regulatory options needed to deploy efficiently.
The diagram below depicts the functional arrangement of the ADDRESS chain components used for the tests.
The system is composed of two distinct parts:
the upstream part consisting of the DSO Platform (with the algorithms developed for the DSO), the ATB System (with the algorithms developed for the aggregation function), a simplified modeling of the different electricity system players and a Market Simulation tool. The ATB and the DSO platforms are run with a local copy of the EBox database (renamed ATB database). Using the database, the whole day-ahead and intra-day sequences are run with the interactions between the DSO and the ATB platforms being considered.
the downstream part made of the EBox database, and the equipment installed at the consumers’ premises, namely the Energy Boxes connected to the internet in an online mode, smart wall units to control the electric heating and the water heater and up to 3 temperature sensors, smart washing machines, smart plugs to control some “classical” electric appliances.
Six types of tests have been performed:
Technical feasibility of the complete implemented ADDRESS system: the technical performance of the ADDRESS system was evaluated on real field data, taking both the components individually or the system as a whole. In particular the tests verified the performance of the algorithms and strategies developed for the aggregation platform, the DSO (e.g for the technical validation of AD actions), the EBox and the control of the appliances, as well as the exchanges of signals/data between the aggregation platform, the energy boxes (EBoxes) and the appliances.
Provision of demand response services to the electricity system players: the tests carried out assessed how Active Demand can meet the needs of the electricity system players using bilateral contracts or market offers. The provision of AD services was based on actual needs of the local electricity system players or on the simulation of possible problems. The AD services for different types of electricity system players (DSO, TSO, BRP, retailer, Renewable Energy producers…) were considered such as power reserve for imbalance management, load shaping (load increase or decrease) for technical or economic optimizations, voltage control and power control to relief overloads or network congestions, combination with Renewable Energy Sources in order to shift consumption to periods when Renewable Energy is available.
Market interaction of aggregation functions and other electricity system players: using the market simulator tool, the market interactions of aggregation entities and other electricity system players were simulated to assess the potential impact of AD on the prices of an electricity market. Different scenarios were tested considering actual past situations that happened on the French Energy market. The actual offer and demand bids were reproduced and the impact of AD offers made by aggregation functions was studied, taking realistic hypotheses regarding their portfolio of consumers and the associated consumption flexibility.
Technical validation and impact on the network of the delivered AD volumes. The technical validation of the AD programs submitted by the ATB was carried out by the DSO platform and the interactions between these two platforms were checked. The effects on the grid of the AD product volumes forecasted and submitted by the aggregation function were compared with the actual ones.
Response of the consumer portfolio to the incentive signals defined by the aggregation platform and sent to the Energy Boxes. This study performed on both local (consumer) and global (cluster of consumers) levels allowed to verify if, how and under which conditions the initial AD need was fulfilled. The forecasted behaviours of the consumer appliances and of the global cluster of consumers are compared to the ones measured on the field.
Consumers’ acceptance and commitment were also assessed by means of questionnaires sent before and after the tests, as well as interviews carried out during the tests.
 The field tests were performed on the two islands of Houat and Hoëdic in the South of the Brittany region, in the West part of France. There are a total of 569 consumers for both islands, of which about 373 are permanent consumers. Indeed, there is a high rate of secondary houses. About 30 domestic consumers have taken part in the tests, leading to a rate of 5 to 8 % of active consumers