Want to lower your electric bill? 3 tools I use to find the biggest power hogs in my house
Portable plug-in power meters like the ATX 9801 measure power, current, power factor, voltage, frequency, and annual kWh; rugged, accurate, inexpensive, but lack app connectivity.
DARPA's ML2P program will map machine learning efficiency to physical energy measurements in joules and require open-source releases to enable energy-aware AI.