

The upside is getting power from an otherwise waste-product. Yes it’s low output compared with traditional turbine-driven power plants, but that doesn’t mean in should be disregarded. Sure it’s not applicable everywhere, but neither is hydro or geothermal. After all, why not use the geography of your location to your benefit? Not everywhere needs to get power in the exact same way, and what’s most feasible is highly dependent on location.
I really can’t see how it follows the same logic…you’re talking about distributed computing using multiple computers, I’m talking about a single piece of hardware which handles it internally.