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But power engineers also knew that a DC system operating at high voltage would be superior to AC for the same task, because the amount of electricity lost during DC transmission would be far less than with AC. At the time, there was no way to do the same with DC. The key to AC’s triumph was that power could be transformed to higher voltages by use of magnetic induction and then sent over long distances at low currents, minimizing the losses due to resistance at the destination, the system would reduce the voltage for local distribution. Well into the 20th century, the world’s power systems were based on AC. In 1895 Tesla’s dream of generating electricity from Niagara Falls was realized, and within a few years that energy was electrifying New York City, 700 kilometers away, thereby proving the superiority of the AC system. But it was Tesla’s alternating current that would rule the day. In 1882, Edison demonstrated the first commercial electric power plant, which was based on direct current. The roots of the global supergrid stretch back to the dawn of the power industry, when the “ war of the currents” raged between the era’s two great inventors: Thomas Edison and Nikola Tesla.
#Siemens generator tech support how to
Beyond that, regional grid operators would need to agree on how to pay for such a network, establish rules for trading the electricity, and specify the technical codes and standards that will allow the supergrid to operate safely, reliably, and securely.Ĭross-Sound Cable consists of a pair of high-voltage DC transmission lines through Long Island sound that connects the electricity grids of New York and New England. So what would it take to build a global supergrid? Technologically, it would hinge on a globe-encircling network of high-voltage direct-current (HVDC) transmission systems, most of the components of which already exist.
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And with a supergrid in place, operators could significantly scale back their spinning reserves-backup capacity that they can tap if demand spikes but in practice is rarely used. With an undersea link to Southeast Asia, that electricity could also be dispatched to countries like Indonesia, Papua New Guinea, and Singapore. For instance, some of the world’s best sunlight can be found in the sparsely populated region south of Darwin, Australia, where it’s estimated that all of that country’s energy needs could be supplied from a solar farm the size of a cattle station. In general, a global supergrid would allow power to be generated far from population centers.
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(To be sure, storing excess energy would also help avoid such problems, but large-scale economical energy storage is still not widely available.) A supergrid would ensure that all or nearly all the electricity that’s generated would get consumed, thus avoiding such wasteful practices as paying wind-farm operators to curtail production or dumping energy that’s not immediately needed.
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Or if one region is experiencing heavy rainfall, hydroelectric dams there could capture the energy, to send elsewhere as needed. Similarly, if the wind in a normally wind-dependent area dies, electricity from its neighbors could quickly fill in. If an outage occurs in one country, the sudden change in line voltage and frequency could trigger a generator thousands of kilometers away to compensate for the shortfall. Learn more →īut the technology now exists to transmit massive amounts of electricity over long distances without significant losses, thereby allowing operators to balance consumption and generation across an entire continent-or, potentially, the globe.
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#Siemens generator tech support pdf
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#Siemens generator tech support full
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