If, like [Giovanni], you want to keep better track of your usage, you might find value in his DIY energy meter build ... current, frequency, and power factor, so you can really nerd out over ...

The strength of the electric field generated by the carrier wave of high-frequency current through a power line of power line communication equipment shall be 500 µV per meter or less over 1 km or ...

Body Rocket, the UK-based startup and creator of the self-titled Body Rocket System, has today launched a pair of power meter ...