Big thread, I actually read it all and the question that just kept coming at me is why don't they (whoever "they" may be) just work a deal with the electricity providers. A asiac chip in every meter. A slight raise in rates across the board will benefit both the mining and the electric companies.
The paying customers accept that some of the power they buy is a good thing. Even though they don't understand decentralization any better than they understand why some places experience brownouts and others never do but they do understand less banking fees and naturally want to get them even if it means another card in their wallet or an app on their phone.
fdyl
Edit: I forgot to mention the rebate that the customers would get each quarter. Each according to their average usage. Win, win, win.
If the mining chips are profitable with normal home electricity prices, then the company will be better off building a mining farm with them in some location where the elecrticity is cheaper.
If the mining chips are not profitable -- meaning that the price of the bitcoins that they mine is less than the price of the electricity that they use -- and their electricty consumption is added to the customer's normal usage, then the customer would take a big loss, while the company and the utility will profit.
So, any idea that means taking some extra electricity from the customer's feed is a non-stater. Inserting the chips near the input meter, or at any random place on the home's wiring, would be a bad idea. Adding the chips to any devices that use electricity to do something other than generate heat --such as battery rechargers, blenders, TVs, computers, microwave ovens, lamps -- will increase the device's consumption, so it is equally bad.
The only devices where the chips could be placed without scamming the consumer are those that resistively convert the electricity to heat. But chips canot work if they get any hotter than ~70 C; so electric stoves, ovens, grills, teapots, and flatirons are also out.
It seems that only water and space heaters are left. But someone went through the math, and concluded that the monetary advantage to the customer would be too small to make a difference.