I'd like to believe that something like this is possible, but I just don't get how this gets around the fact that every Joule that is used for bitcoin mining is a Joule that wasn't used somewhere else. Even if many Joules of renewable power get wasted during periods of overproduction (mid-day in the summer in California), other more worthwhile loads could be shifted to use that power, because today it's negative-pric…
There are some situations where mining Bitcoin is a very good application of energy that will otherwise be wasted. Here are two that come to mind: 1. Flared gas from oil wells. Natural gas is a byproduct of extracting oil from the Earth. In the past this was vented straight to the atmosphere, which is a huge waste of energy and causes horrible air pollution. Capturing this gas isn’t useful for many applications becau…
> Heat production for buildings and water. Most space and water heaters produce heat directly from their energy source (electricity or gas) without producing anything else of value. The primary byproduct of Bitcoin mining is heat, so it’s relatively straightforward to use mining hardware to produce, or at least augment, traditional heating elements. A company called Wisemining has a product called the Sato Boiler that does this now.
This is incorrect because a mining-based heater will be new and use electricity as its fuel source. You can't compare with an old electric heater because a replacement will obviously be new. You can't compare with hydrocarbon heaters, because you need to convert to electricity to run a computer. That means meaning we need to compare with a new electric heater. That comparison is unfavorable, however, because it will probably be based on a heat pump. Heat pumps have efficiency much greater than 100% (usually around 200%) by takng heat from the outside air or ground.
A better example would be something like an electric oven, which typically does just use resistive heating. However, this sort of undermines the argument, since the energy spent on heating food isn't that much compared to things like residential and commercial heating.