The Northern Territory Government has called for tenders for a 25-45 MW storage battery that could be the world's second largest behind South Australia's Tesla 100MW battery.
The battery would be a major step in the transition to the NT Labor Government's target of 50% renewable energy by 2030. The strategy document for the renewable target, Roadmap to Renewables, was prepared by an expert panel and released in November.
The tender has been released by Territory Generation, the government-owned corporation responsible for the Territory's power systems.
According to an ABC report, the expression of interest document calls for design parameters of 25MW, 35MW, and 45MW power outputs, with an energy storage of 30 minutes, and alternatives of up to an extra hour.
The document outlines the projected uptake of domestic rooftop photovoltaic systems to increase from one in ten homes in 2015-16 to almost one in three homes by 2025. There are also increasing numbers of large-scale solar PV systems, with currently eight systems that have capacity of more than 100MW. These include the Darwin Airport system with capacity of 5,524kW, and the Casuarina Square shopping centre with a solar capacity of 1,252.9kW.