The CEC has made a submission to the NSW DCCEEW review on long duration storage definition. The CEC recognises the complexity of the task in terms of balancing short and long term system needs. However, we strongly recommend that consideration be given to the timeframes for building long duration storage solutions, so these assets are in place and fully integrated into the system when they will be most needed, in the mid-2030s onwards. We recommend the department consider how to maintain certainty for investors in all kinds of storage technologies, of both shorter and longer duration. If the department decides to move away from the legislated 8-hour duration target, it will be necessary to replace this with a signal that provides equivalent clarity and certainty for investors. We do not make a specific policy recommendation here, other than noting that it will be very difficult to develop mechanisms that can provide an equivalent level of certainty to a legislated 8-hour target.
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