Feds Have a Plan For Catastrophic Solar Flares (digitaljournal.com)

New submitter Steve Sacco, referencing the newly released National Space Weather Strategy and the National Space Weather Action Plan, written in anticipation of large-scale disruptions from a solar flare or similar event, writes: Released on October 28, 2015, the White House plan involves the coordination of agencies from the federal level, state level, and including emergency managers, academia, the media, the insurance industry, nonprofit organizations and the private sector, all in preparation for the worst-case scenario possible, such as the Carrington Event that took place in 1859.

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Re:Is preparation a problem

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This.

The electrical grids consist of cables that are strewn over long distances. They act like giant antennas that pick up the EM radiation from the flare and its interaction with the Earth's magnetic field. To protect the grid, you disconnect portions of it from each other, so that instead of a few giant "antennas", you have many more small ones. The current induced in the smaller "antennas" is much lower and far less harmful. And this is why prediction is so important: the early warning allows grid-operators to disconnect the grid in time to avoid catastrophic damage.

Satellites are also vulnerable because they can suffer deep static-charging that burns out electrical components. Unfortunately, forecasting doesn't help as much for this. The best you can do is study the magnitudes of expected events, engineer as well as you can against them, and plan for redundancy and replacement of the satellites as needed.