They don't really have anything to do with each other other than both dealing with "power." Your report is talking about total capacity/generation due to having

They don't really have anything to do with each other other than both dealing with "power." Your report is talking about total capacity/generation due to having average stock of hydro and the linked report is talking about usage during "extreme demand" periods. It doesn't matter how much generating capacity you have if you can't transmit all of it to where it's needed when all AC's are on full blast and everyone is charging their cars and everyone is cooking on electric stoves, or need to totally cut it off to large areas to prevent forest/wild fires during these extreme demand periods, which is when it's hottest. Blackouts/brownouts will still continue, and even be planned for, even with excess hydro. Infrastructure/delivery goes way beyond just raw generation.