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UK's Newest Tokamak Fusion Reactor Has Created Its First Plasma (futurism.com)

After being switched on for the first time last Friday, the UK's newest fusion reactor has successfully generated a molten mass of electrically-charged gas, or plasma, inside its core. Futurism reports: Called the ST40, the reactor was constructed by Tokamak Energy, one of the leading private fusion energy companies in the world. The company was founded in 2009 with the express purpose of designing and developing small fusion reactors to introduce fusion power into the grid by 2030. Now that the ST40 is running, the company will commission and install the complete set of magnetic coils needed to reach fusion temperatures. The ST40 should be creating a plasma temperature as hot as the center of the Sun -- 15 million degrees Celsius (27 million degrees Fahrenheit) -- by Autumn 2017. By 2018, the ST40 will produce plasma temperatures of 100 million degrees Celsius (180 million degrees Fahrenheit), another record-breaker for a privately owned and funded fusion reactor. That temperature threshold is important, as it is the minimum temperature for inducing the controlled fusion reaction. Assuming the ST40 succeeds, it will prove that its novel design can produce commercially viable fusion power.

5 of 308 comments (clear)

  1. Re:That won't prove commercially viable power by Computershack · · Score: 5, Informative

    Still waiting for solar to pass its commercial viability test and I suspect wind power is a similar story. So far it only succeeds here in the UK because of government subsidies. If I pay for and install my own 5kWh solar system the returns over 20 years don't cover the cost of the initial installation, let alone a replacement inverter after 10 years or any other maintenance.

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  2. Wind cheaper than coal, solar than nuke/oil by Anonymous Coward · · Score: 5, Informative

    Both already have a ROI in less than a decade and are profitable almost immediately, having zero fuel cost.

    You're waiting because you refuse to stop waiting and complaining.

    ALL power "only succeeds" here in the UK because of government subsidies. If you pay for or install your own coal fired power station it will never pay back. Don't even try nuke.

  3. Re:That won't prove commercially viable power by Rei · · Score: 5, Informative

    The cost is no longer the panels; it's the installation. Panels are dirt cheap in bulk.

    When talking about solar prices, it's important to make a distinction between home installs and grid-scale installs. The latter in the US is now averaging around $1,50 per kW, and some installs are coming in around $1 per kW. Which is crazy-cheap, even taking into account the capacity factor.

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  4. Re:That won't prove commercially viable power by drinkypoo · · Score: 5, Informative

    Are you sure it's $1/kW, not $1/W?

    It's $/W. Interestingly, though, it's under 2 now and almost to 1, and when I started looking seriously at buying panels ten years ago it was over 4.

    --
    "You're right," Fisheye says. "I should have set it on 'whip' or 'chop.'"
  5. Re:That won't prove commercially viable power by ISayWeOnlyToBePolite · · Score: 4, Informative

    Nowhere is Europe is wind producing 50% of the annual power on the grid. Not even close. Wind power cannot exist on the grid today without conventional sources to back up its intermittency.

    Denmark, 49.2% of supply in 2015 (no figures for 2016 on wikipedia) https://en.wikipedia.org/wiki/...

    Curiously the winds are a lot stronger in the winter, so thats when they have a lot of excess power to export.