Iberdrola Australia have secured dispatch control of Wallgrove Grid Battery for use in the energy and Frequency Control Ancillary Services (FCAS) markets under an agreement with TransGrid for a period of 10 years from commissioning. 

The Wallgrove Grid Battery project is a 50MW/75MWh lithium ion battery connected to the NSW transmission network. It will be owned and operated by TransGrid, and designed and constructed by Tesla using Tesla Megapacks. Commercial operations are expected to. commence in Q4 2021. 

The project will trial the use of a battery to provide the network services of fast frequency response and synthetic inertia, and has received funding from ARENA as part of ARENA's Advancing Renewables Program and the NSW Government as part of the Emerging Energy Program.