Lake Bonney Battery Energy Storage System

About the Project

  • 25 MW / 52 MWh Battery Energy Storage System (BESS) located adjacent to the 278.5 MW Lake Bonney Wind Farm in South Australia
  • Infigen entered into funding agreements with the South Australian (SA) Government and the Australian Renewable Energy Agency (ARENA) to co-fund the ~$38 million development. The SA Government and ARENA have each committed up to $5 million in funding.
  • Construction of Stage 1 installing 25 MW / 33 MWh is expected to be complete in March 2019 and Stage 2 in May 2019
  •  Connection to the National Electricity Market (NEM) via the Mayurra substation owned by ElectraNet


The operational benefits of the BESS are:

  1. Firming Infigen’s SA portfolio: access to energy storage allows Infigen to enter into additional energy supply contracts with commercial and industrial customers
  2. System security in the NEM: the BESS can supply ancillary services ensuring increased security and quality of supply and fast response services as required
  3. Policy considerations: adding battery energy storage capability to the SA market is consistent with the objectives of energy policy, including the proposed National Energy Guarantee

Project Overview

Power rating 25 MW
Energy storage capacity 52 MWh
Minimum charging time 2 hours
Model Tesla Powerpack
Plant expected life 10-15 years
Connection Mayurra Substation (owned by ElectraNet)
Completion of construction Stage 1: 25 MW / 33 MWh
– March 2019

Stage 2: 25 MW / 52 MWh
– May 2019

Project cost $38 million
ARENA $5 million
Renewable Technology Fund (SA) $5 million
EPC contract Tesla Motors Australia