https://portlandgeneral.com/blog/smart-homes-smarter-savings
(my power Co sent me this, a simple search shows no provider outside the Google-snoop realm, #opensource is all diy)
"Smart power strips: Stop phantom energy in its tracks
Many electronics use electricity even when they’re turned off. That’s called standby or “phantom” power and it can add up over time.
…computers, game consoles, chargers — basically anything with a plug that sits unused but plugged in for long stretches.
Est savings: 5-10% on household electricity"