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A measure of electrical energy equivalent to a power consumption of one watt for one hour.
‘The Prius is peppy enough, and the car's video game-like display encourages you to drive with a light foot, rewarding you with a green leaf symbol for every 50 watt-hours of electricity you regenerate during braking and coasting.’
‘We'll skip over the explanation that energy output ought to be expressed as watt-hours or BTUs per hour, but never is.’
‘A typical lithium-ion battery inside of a laptop generates about 275 to 285 watt-hours per liter of material.’
‘Approximately two shot glasses of ethanol could yield enough hydrogen to generate 350 watt-hours of electricity, enough to power half a dozen 60-watt lightbulbs for an hour.’
‘Every watt-hour you can save is heat that the customer doesn't have to deal with.’
‘That means that a AA battery can produce 2.8 amps for an hour at 1.5 volts (about 4.2 watt-hours - a AA battery can light a 4-watt bulb for a little more than an hour).’
‘That caused the rover's average solar energy to spike up 720 watt-hours, not much below the power level she had shortly after landing nearly two Earth years ago.’
‘Just last June, he threw his first bash celebrating his solar electric system's generation of more than 10 million watt-hours of sun-powered energy.’
‘He lent me a digital power meter that measures both demand in watts and cumulative energy consumption in watt-hours.’
‘With the cost of the Kyoto Protocol looming large on the horizon, every watt-hour we save represents fewer carbon-credits we need to purchase.’
‘Since early September, however, the amount of electricity from Opportunity's solar panels has increased markedly - and unexpectedly - to more than 700 watt-hours per day at times, a level not seen since the first 10 weeks of the mission.’
‘Reusing paper saves the energy used to make new paper (an average of 15 watt-hours of energy is used to produce a single sheet of paper), and it saves you the money of purchasing it.’