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Thread: The Remarkable Progress of Renewable Energy

  1. Top | #1061
    Fair dinkum thinkum bilby's Avatar
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    The French load-follow with nuclear reactors. It's not particularly fuel efficient, but fuel costs are a minuscule fraction of the cost of generating electricity from nuclear fission, so it doesn't matter.

    Hydrogen has a number of issues, not least of which is that it's the most difficult gas to contain, and is explosive at a very wide range of concentrations in air. This makes widespread use of Hydrogen very hazardous indeed.

    If it wasn't so tragic, the popularity of Hydrogen amongst people who reject nuclear fission as "too dangerous" would be the funniest joke in the history of electricity generation.

  2. Top | #1062
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    A mix of sources.

    https://en.wikipedia.org/wiki/Tennes...Power_stations

    Power stations
    Main article: List of power stations operated by the Tennessee Valley Authority
    With a generating capacity of approximately 35 gigawatts (GW), TVA has the sixth highest generation capacity of any utility company in the United States.[43] TVA's power mix as of 2020 is five coal-fired power plants, 29 hydroelectric dams, three nuclear plants (with seven operating reactors), nine simple-cycle natural gas combustion turbine plants, nine combined cycle gas plants, 1 pumped storage hydroelectric plant, 1 wind energy site, and 15 small solar energy sites.[44] In fiscal year 2018, nuclear generation made up about 40% of TVA's total, coal 26%, natural gas 20%, hydroelectric 10%, and wind and solar 3%.[44] TVA purchases about 15% of the power it sells from other power producers. It purchases power from natural gas combined cycles, coal, and wind, and other renewables.[45] The cost of Purchased Power is part of the "Fuel Cost Adjustment" (FCA) charge that is separate from the TVA Rate. Watts Bar Nuclear Plant produces tritium as a byproduct for the U.S. National Nuclear Security Administration, which requires tritium for nuclear weapons (for "boosted" fission primaries and for fusion secondaries).

    Electric transmission
    TVA is one of the largest operators of electric transmission in the U.S. with an approximately 16,000-mile (26,000 km) corridor of transmission (13,000 miles (21,000 km) of which is greater than 161kv).[46]

  3. Top | #1063
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    Quote Originally Posted by bilby View Post
    The French load-follow with nuclear reactors. It's not particularly fuel efficient, but fuel costs are a minuscule fraction of the cost of generating electricity from nuclear fission, so it doesn't matter.
    Given the tiny fuel costs it's not worth doing, and there's also the issue that you can't do it quickly.

    Hydrogen has a number of issues, not least of which is that it's the most difficult gas to contain, and is explosive at a very wide range of concentrations in air. This makes widespread use of Hydrogen very hazardous indeed.

    If it wasn't so tragic, the popularity of Hydrogen amongst people who reject nuclear fission as "too dangerous" would be the funniest joke in the history of electricity generation.
    And hydrogen has very little use anyway other than as a storage technique--which has a pretty low efficiency.

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