Brings unprecedented visibility into power consumption—and the ability to control it. Almost essential if you have a backup battery. 32-circuit limit means large homes won’t have perfect visibility.

Hands-on: Ugreen's $1,299 setup takes a few hours to turn sunlight into enough charge to run my refrigerator for hours. When high winds took down power lines and left my family in the dark last March- ...

We independently review everything we recommend. When you buy through our links, we may earn a commission. Learn more› By Tim Heffernan Tim Heffernan is a writer who covers air and water quality and ...