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

Key tips you should know for making the leap into the world of watts. A power meter is a device fitted to a bike that ...

tied to devices with integrated energy saving features. (Certainly makes us want to keep a close eye on our electric meters.) “The reason for faulty readings appears to be the current sensor ...