From the report: "Seawater was chosen due to the sustainability...

From the report:

"Seawater was chosen due to the sustainability concerns of sourcing freshwater for initial reservoir fill, as well as ongoing top up to account for evaporation. While this does add costs relative to freshwater, most notably in the coatings and special alloys that need to be used, it is the site’s layout and requirement for slow velocity water exchange on the coast that causes the bulk of the capital costs beyond a typical pumped hydro project."

Point proven.

We already currently have a license from the Kidston dam for top up due to evaporation for no additional cost. Hopefully, this translates into more attractive financials.