Consumers and businesses are asked to reduce their electricity use during peak electricity hours from 3 to 7 p.m. today to avert the need for rotating outages.
Or consider how much easier it got to earn the money for a half-gallon of milk (56 minutes in 1900, down to 31 minutes in 1930) or 100 kilowatt hours of electricity (107 hours in 1900, but only 11 hours in 1930).
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There is running water once a week, electricity for two hours a day.
In 1989, a relatively modest geomagnetic disturbance collapsed the electric grid in Quebec, depriving millions of users of electricity for several hours.
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About 270, 000 utility customers remained in the dark late Sunday, a significant improvement from the 635, 000 without electricity about 24 hours earlier.
Blackouts are nothing new in Pakistan because of chronic power shortages, with many areas having no electricity for several hours a day, says the BBC's Orla Guerin in Islamabad.
"They cut the electricity for two hours every morning, and of course it affects work a lot, because the whole company runs on computers, " said the CEO of a Damascus-based media company, speaking to CNN on condition of anonymity for fear of his life.
Villages are lucky if they get just a few hours of electricity a day.
It will store 16 kilowatt-hours of electricity--enough to travel 40 miles without assistance from the gas engine.
Today, more than four years since the invasion, the city averages about six hours of electricity a day.
The streets are awash in sewage, trash is everywhere, and there are only two hours of electricity a day.
The result was the use of 58.6 kilowatt-hours of electricity, plus 2.36 gallons of gas equivalent to 72.9 mpg.
Tracking website Blockchain logged 982 megawatt hours of electricity consumption over a 24-hour period by Bitcoin miners around the world.
In 2007, U.S. nuclear reactors operated at record capacity of 91.8% and generated a record 806.5 billion kilowatt-hours of electricity.
Four teenage girls figured out a way to use a liter of urine as fuel for generating six hours of electricity.
Most of last winter the country's second city, Ganje, had to make do with only two hours of electricity a day.
SSE, which trades as Scottish Hydro north of the border, said Glendoe was already producing about three gigawatt hours of electricity for the network.
Borgiani says that regular washers with a 5-pound load of laundry require 2 kilowatt-hours of electricity and 80 liters to 90 liters of water.
The International Energy Agency forecasts that the world will consume 28 trillion kilowatt-hours of electricity in 2030, nearly twice the current level of consumption.
Now, the streets are lit every night--in a country which, in the last five years, has probably spent more hours without electricity than with it.
The light source provides eight hours of electricity per dose of saline water, and the lantern comes with a dedicated water bag for mixing the solution.
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Nanosolar, furthermore, a maker of thin-film solar cells, has a project in Spain that applies nano-science that will provide 16, 500 megawatt hours of electricity each year.
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The world is using less oil today to generate electric power than it did in 1973, despite output almost trebling to 17.5 billion watt hours of electricity, from 6.1 billion WH.
Enbw, Germany's third-largest utility, reckons that, because of falling industrial demand, it is generating three terawatt-hours less electricity a month which is the equivalent of removing a medium-sized city from the grid.
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General Motors unveiled a new modular unit that uses the power from five used Chevy Volt batteries to provide up to two hours of electricity for three to five average homes.
The calculation is based on annual air-conditioning use of 1, 622 kilowatt-hours of electricity, reasonable in hot places like Texas but not in the Midwest, where the average home uses fewer than 1, 000 kilowatt-hours.
There was a heavy emphasis on numbers, describing a wide range of subject matter enemy attacks carried out, development projects completed, kilowatt hours of electricity generated, barrels of oil exported, palm trees sprayed against disease, chicken embryos imported.
At times of peak demand, electricity is made largely from natural gas in turbines so inefficient that saving 1% of U.S. electricity, including peak hours, saves 2% of total natural gas use and cuts its price 3% to 4%.
On the positive side, street life is coming back all over, restaurants and shops are reopening, Baghdad is getting about 18 hours of electricity now, and gasoline lines, a mile long four weeks ago when I was last in Iraq, are now virtually gone.
With sweeping deregulation, electricity suppliers would offer consumers price breaks for using electricity during off-peak hours.
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