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When Space Weather Attacks Earth
Lasrick writes "Brad Plumer details the 1859 solar storm known as the Carrington Event. Pretty fascinating stuff: 'At the time, it was a dazzling display of nature. Yet if the same thing happened today, it would be an utter catastrophe...That's not a lurid sci-fi fantasy. It's a sober new assessment by Lloyd's of London, the world's oldest insurance market. The report notes that even a much smaller solar-induced geomagnetic storm in 1989 left 6 million people in Quebec without power for nine hours.'"
I suppose you've also heard about plague, AIDS and the measles, but if you've never been affected by them, then it must be a lot of made up rubbish, right?
1) Smaller solar flares have affected the grid before. It's not unthinkable that a big one as mentioned in TFA can break a lot more stuff. Stuff that isn't exactly off the shelf in quantity. Might be a rare event, but if we can plan against it, maybe we should? Beats sitting in the dark for weeks.
2) Speaking of Y2K... the reason nothing happened is because companies took action. I've been involved in Y2K work at the time, and while a lot of it was bullshit ("Make sure the coffee machines are Y2K-ready or we're doooooomed"), the power plant and telco I worked for would have been severly affected by Y2K if nothing had been done. Some of that was simply being prepared for any disaster; their systems had never been offline completely (only parts of it), and there was no procedure for a cold restart.
In other words, when doom is called, consultants scramble to grab a piece of the hyped pie, companies take rational stock of their own situation and apply fixes as needed, and the general public scoffs as the event passes as another non-event, because of preparation and planning
If construction was anything like programming, an incorrectly fitted lock would bring down the entire building...
9 hours no electricity? what a catastrophe. I've done that for 9, 18, 24 or so hours, it was called camping
Depends. If your oxygen concentrator doesn't run for 9 hours or you can't keep your insulin cold for 9 hours, yeah it could be a catastrophe. If you have lederly parents to care for or young children, yes it could be a problem. But if you are just thinking of no light bulbs or tv, yeah, then it probably isn't a big deal. OTOH, no subways, elevators, mass transit, gasoline heating or cooling (depending on the time of the year and your location), no emergency response or telephones to even contact them. Would that be a catastrophe? For some it could very well be.
It isn't uncommon to lose power for about a week with storms in this area. We loose power for about 9 hours probably once a year or so and for a week about once every 10 years. We all manage to survive. You can't stop the storms, so you deal with it. I don't see these solar storms as any worse and they are MUCH less frequent.
If you could reason with religious people, there would be no religious people
The last time someone got wound up about this on Slashdot. And, last time around, I linked the PJM power grid training document on geo-magnetic disturbances. They know about the Carrington Event. They know all about the problem in 1989, which happened on their system and damaged some transformers.
The problem shows up as DC current on long AC lines, because voltage at "ground" differs across points hundreds of miles apart. This can damage transformers. So they have DC current monitoring in place at some key points on their system. Corrective action is taken when "DC measurement of 10 amps or greater measured at Missouri Avenue in Atlantic City and/or Meadow Brook Station near Winchester Virginia". Some long-distance lines have to operate at reduced capacity. Some generating plants are told to reduce output. Others have to crank up to compensate.
Medium sized disturbances of this type happen a few times a year (more at the high point of the sunspot cycle). Only one warning so far this year, on June 29th. April 11, 2010 was the most recent disturbance event that required that action be taken. The warning came in from NOAA's Space Weather Center, and people in power grid control centers (the US has seven) reconfigured the power grid to prepare for it.
You sort of missed the point. A full-blown Carrington Event, like in 1859, could result in many months or perhaps a year without electricity. It's relatively easy to sit out a few hours or perhaps a week without power, but I think that you would find it a different story with out power for half a year or year (or tightly rationed power for that period of time). Like, perhaps you wouldn't have a job, and there would be signficant food shortages...
Worse, even events less powerful than the Carrington Event occur more frequently than the Carrington Event and can cause significant damage to our high voltage infrastructure.
Nine hours was the relatively minor 1989 event. Something like the Carrington event could be much, much more damaging.
Nine hours Is about the maximum duration and the Carrington event wasn't much longer than that. Once your part of the world rotates into the dark you are shielded from most of the the CME effects. (Not all, but the most damaging high energy flow is diverted around the earth).
Further CMEs don't tend to last more than a couple days at worst. And they take 3 to 4 days to arrive, so people have time to unplug stuff, and even to de-energize and temporarily ground long transmission lines. Your local power company already knows where every manual disconnect switch is, and can have the local grid broken into small segments and de-energized in mere hours. Some of these are in cabinets in your neighborhood, and some are on power poles (long rod running to a locked lever arm near the ground).
Long un-grounded transmission lines (or similar structures, even electric fences) are the most easily effected. But anything that is grounded periodically (every few miles) is not particularly affected. Nobody thought of this in the era of telegraph, but its built into every system these days with the possible exception of highpower transmission lines.
Modern building wiring, with GFI and GFCI would probably all trip, preventing a lot of infrastructure damage, and if not, you've got 4 days to plan manual breaker tripping.
These surges won't affect big pump motors as the story suggests, because 1) you know they are coming ahead of time, 2) its easy to disconnect the pump motors from the mains, and start your local diesel generators for the duration. The disconnect switch gear and the local generators are already built into critical infrastructure. Short runs between the backup generators and the pumps would not build up any induced currents.
The story is a great deal of hyperventilating by people who don't really understand how infrastructure is built these days.
Sig Battery depleted. Reverting to safe mode.
basically a global EMP
I was starting to think I was on the wrong website, I had to read down this far before someone finally understands the threat is more than a just a mess of power line knocked down in a storm. Sure humans were built to survive without electricity, but not in the vast numbers created by our invention of civilization. The numbers supported by a civilization are directly related to its technology level. Without electricity we will be metaphorically back in the 1920's with 7X the number of people on our little rock requiring food and shelter.
If the damage takes too long to fix civil war and mass migration is a likely outcome, which will be hard to believe for people who think that drought has nothing to do with the Syrian war.
And did you exchange a walk on part in the war for a lead role in a cage? - Pink Floyd.