When certificates expire unexpectedly, vital health and financial information stops flowing, power grids go dark, and business and personal transactions stop in their tracks.
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To keep current flowing, Nevada Power had to buy juice from companies like Enron.
By contrast, Mr Jospin sees power flowing only in one direction: towards Brussels.
The amount of solar electricity flowing from a power plant can fluctuate, sometimes significantly, depending on the weather and other conditions.
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The large power transformers, that control most the power flowing through the grid, are failing at an alarming rate, twice the rate as in 2001, and ten times the rate as in 1980.
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To keep power flowing reliably, grid operators must smooth out supply and demand on a second-to-second basis (known as frequency regulation), an hourly basis (intermittency), and on a daily, weekly, and annual basis (meeting peak demand).
More investment is flowing to technologies such as upgraded power grids with smart meters that allow users to better manage their consumption of electricity, and energy-efficient buildings that reduce the cost of operations and improve human health through better air quality.
Billions of dollars are tied up in construction for nearly a decade (if things go well) before power--and therefore revenue--start flowing.
"Democrats are now in power in Congress and so the money that was flowing to Republicans from K Street is now going to them, " said Jane Hamsher, founder of the political blog Firedoglake.
In the new recreation-minded West, cheap power is now seen as less important than swift-flowing rivers teeming with fish.
Scottish Power completed preliminary trials of the giant undersea turbine in the fast-flowing coastal waters off the Orkney Islands.
That soon arrived as a flowing move involving forwards and backs shredded the Bristol defence, allowing flanker Williams to power over for his second seven-pointer.
They are the controlled, power game England used to win the World Cup, or the more open, flowing style favoured by Wales in their recent Six Nations triumph.
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