In September 2016, a devastating hurricane rolled over Australia causing a state-wide blackout in South Australia. Moreover, in March this year the largest national lignite-fired CHP was shut down. As a result, the state suffered frequent power outages at peak load times.
In order to address the problem, the authorities developed a new energy programme of actions totalling to approximately USD 390 mln. A key item of the programme was installation of batteries connected to the Honsdale wind power plant. A tender for the project implementation was announced; 90 companies sent their bids offering their energy storing options. Tesla was selected as the bid winner.
In March this year, the Tesla CEO Elon Mask promised to solve the power supply issues in Australia. In July, he announced that they would build a battery with a capacity of more than 100 MW in just 100 days; and, unless the construction is completed in the above time, the customer will get the battery absolutely free of charge. According to the agreement, the project should have been commissioned by December 1.
Eventually, on November 23, 2017, Elon Mask announced that the construction of the world's biggest and most powerful battery named Powerpack had been completed before schedule. Thus, the construction took only a few months (93 days). The total battery capacity is 129 MWh, while the project cost is estimated at USD 50 mln. The energy storing system, which is connected to the wind farm, is capable of supplying power to about 30,000 households.
It should also be mentioned that this is not the first Tesla's large-scale project implemented in construction of battery arrays: the company actively implements Powerwall technology-based projects.