Battery storageProject Consumer Energy Systems Providing Cost-Effective Grid Support
This report summarizes the deployment of NAC and reward structures. It distils the key learnings that are relevant for a largescale application of this type of technology elsewhere in Tasmania and Australia.
The CONSORT Bruny Island Battery Trial has demonstrated how customer owned distributed energy storage can deliver significant value to the network. The 34 participating batteries were orchestrated to reduce the amount of diesel generation that was required to manage an existing constraint in the cable supplying Bruny Island. The batteries and orchestration system combined to deliver a 33% reduction in the amount of diesel generation in 2018.
The project delivered four key deliverables:
- 34 households with solar/battery systems equipped with Reposit Power battery controllers totalling 127.8kW/333 kWh;
- An advanced battery orchestration algorithm, Network Aware Coordination (NAC), developed by the Australian National University (ANU);
- A means of pricing network services that reflects the value they provide the network developed by The University of Sydney (USyd); and
- A map of the customer experience and insight into how future demand response and orchestration programs by the University of Tasmania.
This report summarizes the deployment of NAC and reward structures. It distils the key learnings that are relevant for a large scale application of this type of technology elsewhere in Tasmania and Australia.
The key outcome of the trial was that orchestrated customer sited DER successfully managed a network constraint; the batteries and orchestration algorithm were able to deliver a 33% reduction in diesel and completely avoid all diesel generation on one occasion (see Network Aware Coordination final report ). The community remained engaged throughout the whole trial and continue to provide valuable insight (see Social Science final report ). A new Shapley value based means of pricing network services was demonstrated (see Reward Structures final report ). The use of batteries at peak times delivered a 33% diesel saving. Half of which was attributable to the NAC battery orchestration algorithm, the other half being from optimising the customers own consumption.