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Energy question of the week: What makes a power grid intelligent?

08. March 2010, 09.00
A closely-interconnected grid of power lines and wires 1.7 million kilometres in length and running from power stations to wall sockets delivers a reliable power supply throughout Germany. It has evolved and been maintained over decades, extended in leaps and bounds, and virtually no-one gives any real thought to the interplay between generator and consumer, power frequency and high voltages, sub-stations and transformers. Now, in response to the rising proportion of electricity generated from renewable sources, the term Smart Grid (the 'intelligent' power grid) is now coming into common parlance. Was, and is, our existing power grid really so 'dumb'?
Jan Oliver Löfken
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Jan Oliver Löfken