Of course, the underlying thesis is that New Zealand, although we've got one of the best electricity systems in the world, as another member has already observed, in a dry year, we've got a reliance on Huntly and coal, and as we have more renewables, we become more vulnerable to renewable intermittency and dry-year risk. So there are ways that that has to be ameliorated, and one of the ways that is being considered is whether we increase our hydro reserves by building a giant battery, effectively, in Lake Onslow, by raising the level of that. It is actually already artificially raised a bit.