Might be. If the hydro generator isn't supplying enough energy to the local area because of BTC, then presumably a higher load falls on petro energy to fill in the gap in supply.

That influences the global market a tiny amount. Your power bill likewise is affected, presuming your provider has any petro in its supply mix, which it likely does (even if only as a backup).

The impact is tiny to nonexistent at a scale of 1, but for numbers greater than 1 the impact likewise increases.

Or more succinctly: Electricity tends to be fungible and move over geographically large networks, so most of it is probably interchangeable even over large areas/distance.

I think this is less true for purely renewable grids separated by large continents. The amount of concrete and steel needed to move solar from the Sahara to Finland makes the energy very much not green anymore.

Petro energy- natural gas, diesel plus coal- don't really concern themselves with CO2 and can use existing transportation to get to remote areas, so the energy produced is very much more fungible on a global scale.

It really isn't. Quebec has rock bottom prices for electricity but 250mi away in boston the electricity cost several times more.

https://www.hydroquebec.com/data/documents-donnees/pdf/compa...

FTFY: If a huge coal power station emits tons of CO2 to mine funnycoins for cryptobros, will the sea levels still rise?

The energy grid is actually huge https://en.wikipedia.org/wiki/Wide_area_synchronous_grid

Not sure about economic effect though, I'm not a electrical economic engineer haha