Hold on… A few things stand out to me.
Why do you think they want people to buy energy? (Regulated)Hydro companies always want people to conserve electricity because it means they don’t need to be constantly upgrading the transmission grid.
Secondly, what would they be diverting water to? Who is they? Hydro may physically control the dams and valves but if you are saying the water needs to go to the data centre when the water is going to come from Metro Van water department, in which case the city does get a say because development is only approved if there is enough capacity. If the data centre is using a lot of water, so much so that it will impact HydroBC in terms of lower reservoirs, it’s going to be a massive demand in the city run water service.
If you have questions about how these things are controlled I’d be happy to help answer them using the public documents from these utilities.
It’s not that simple.
Drinking water comes from three reservoirs: https://metrovancouver.org/services/water/reservoir-levels-water-use
Only the Coquitlam dam is impacted by hydro use: https://metrovancouver.org/services/water/watersheds-reservoirs
The water use planning for Coquitlam can be seen here: https://www.bchydro.com/toolbar/about/sustainability/environmental_responsibility/water-use-plans/lower-mainland/coquitlam-buntzen.html
The diversion for drinking water (MVWD) is downstream the power houses, meaning drinking water diversion is limited by power generation. Further, this station is used for auxillary and peaking because they are not efficient/old.
Sidenote: the trails at the Capilano reservoir are magical ✨ I ended up there by accident a few years back and nwas blown away. Accessible by public transit too!