Growing up, one of my father’s catchphrases was, “Turn off the lights when you leave a room; we’re not made of money!” I rolled my eyes back then, but I get it now. Like many, my electric bill has ...

You almost never hear of a DC Watt Meter – one just does some mental math with Volts and Amps at the back of one’s head. An AC Watt Meter, on the other hand, can by pretty useful on any workbench.

Local residents who have ever wondered exactly how much electricity is gobbled up by their household appliances now have a way to find out: Head to the local library. Libraries throughout Santa Clara ...

The watt hour meter measures the total energy supplied from the mains supply. For experimental convenience it is replaced by an indicating watt meter that indicates the instantaneous rate of energy ...