kWh, if we're going to be pedantic, which I approve of. :) It bugs me that even quality newspapers frequently mistake power (watt (W)) for energy (joules (J) o

kWh, if we're going to be pedantic, which I approve of. :) It bugs me that even quality newspapers frequently mistake power (watt (W)) for energy (joules (J) or watt-hour (Wh, often with the usual metric prefixes)).