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Tuesday, March 27, 2018

Power grid security

IF WE ARE GOING TO SPEND THE MONEY ANYWAY, LET’S SPEND IT TO HARDEN THE ELECTRIC GRID FROM AN EMP (ELECTROMAGNETIC PULSE)


Electricity
The HVTs are vulnerable to four types of attacks:
  1. EMP- An Electromagnetic Pulse is generated as a result of a nuclear bomb. It is a burst of electromagnetic energy that damages electrical equipment, such as the Supervisory Control and Data Acquisition (SCADA) systems regulating the voltage in HVTs. If the SCADA systems go down, the HVTs go down.
  2. CME- The sun is perhaps the most dangerous adversary of the electric grid. A Coronal Mass Ejection from the Sun would have the same effect as an EMP, but on a global scale. A CME is an ejection of particles from the sun, also known as a solar flare. These happen quite often. The last major CME event to hit the Earth was in 1859. When it hit, there were reports of sparks shooting off telegraph wires in telegraph stations. A CME event today could shut down electronic devices worldwide.
  3. Cyber- As we saw with Stuxnet, SCADA systems are vulnerable to cyber-attacks. Attacking the SCADA systems that run the electric grid could cause severe physical damage and shutdown significant portions of the system.
  4. Physical- Since 2013 there have been two attacks on electric substations. One in Metcalf, California and another in rural Utah. In both attacks the HVTs were targeted with rifles and caused temporary shutdowns.
Clearly the electric grid is the most important of the sixteen infrastructure sectors the Department of Homeland Security declared critical. Without electricity the banking system fails, without electricity the healthcare industry becomes non-existent, and without electricity there is no way to pump water to homes and businesses.

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