jm + power + electricity   4

The private monorail tunnel under North London
20km of private monorail owned and operated by the electricity grid, used to monitor and inspect one of the longest 400kV circuits in Europe
power  monorail  transport  london  underground  tunnelling  electricity  cool 
october 2016 by jm
GCHQ intervenes to prevent catastrophically insecure UK smart meter plan - The Inquirer

GCHQ barged in after spooks cast their eyes over the plans and realised that power companies were proposing to use a single decryption key for communications from the 53 million smart meters that will eventually be installed in the UK.


holy crap.
gchq  security  smart-meters  power  uk  electricity  gas  infrastructure 
april 2016 by jm
They called it "big iron" for a reason: the Cray Motor-Generator Unit
I think the deal with the Motor-Generator Unit was that the Cray 1 needed not just enormous amounts of power (over a hundred kilowatts!), but also very stable power. So it ran from a huge electric generator connected directly to a huge electric motor, the motor running from dirty grid power and the generator, in turn, feeding the computer's own multi-voltage PSU. The Cray 1 itself weighed a mere 2.4 tonnes, but all this support stuff added several more tonnes.


via RobS.
via:rob-synnott  cray  history  big-iron  motors  power  electricity  generators 
april 2014 by jm
Nuclear energy: Inside the black box
What's going on inside the Fukushima nuclear reactor, and how it is hoped meltdown can be averted
nuclear-power  meltdown  disasters  japan  fukushima  power  electricity  nuclear  from delicious
march 2011 by jm

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