[mrb]

I have produced what is to my knowledge the most precise estimate of Bitcoin's energy consumption: http://blog.zorinaq.com/bitcoin-electricity-consumption/ That other index ("Bitcoin Energy Consumption Index") is famously flawed, and its author is strangely defensive. I wrote a critic: http://blog.zorinaq.com/serious-faults-in-beci/

The chart https://twitter.com/FatTailCapital/status/899714838796148745 was produced as described in the footnote (mining hashrate × efficiency linearly declining from 1.5 to 0.2 J/GH), which IMHO fairly represents the "upper bound" of the energy consumption. The real consumption is likely lower. For example my study estimates the current efficiency is between 0.100 and 0.195 J/GH.

To give you an idea, "1M US homes continuously" is roughly the annual electricity consumption of decorative Christmas lights in the US.

[dplarson]

Thanks for the info and context!