The meters installed on the premises ... provision to calculate reactive power and hence power factor cannot be calculated based on its reading, claimed the Power Quality Welfare Consortium.

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 ...

A current shunt placed on the power factor correction (PFC ... delta-sigma data reading, and current loop control; and 10 kHz ISR2 lopo for voltage-loop control and e-meter calcuation. Source: Texas ...