For an inside look at how traditional energy meters work, head over to this video where [Ben Krasnow] explains KiloWatt Hour Meters ...

Electricity usage is measured in watts-hours (Wh), kilowatt-hours (kWh), joules (J), or mega-joules (MJ). Demand meters measure the temperature of a conductor to identify average and maximum demand.

China has done it again as they unveiled a massive hydroelectric power plant that is as big as the iconic Eiffel Tower.

One unit of electrical energy is one kilowatt-hour, or 1 kWh. Domestic electricity meters, similar to those above, measure the number of kilowatt-hours of electrical energy used in a home or other ...