The Future of Energy Storage

We're seeing in the Australian market is a deepening of sophistication and different types of revenue contracts that are becoming available for energy storage systems. And ultimately, we think if we put the projects together in a way where they can support the lowest cost of capital, that should drive the most cost-effective energy prices for the end-energy user. But just on this one, I understand that you could actually expand this to eight-year 800 megawatts and I suppose multiple hours of storage. What might be the trigger points for actually doing that? I think the expansion will be a function of the different type of revenue contracts emerging.