19 July 2026

Impact of solar storms on power grids

The topic provides technical context on space weather risks to critical energy infrastructure, which is relevant for disaster management and infrastructure security, though it lacks a direct Indian policy or event focus.

Questions

1. Explain the mechanism by which geomagnetic storms impact power grid infrastructure. How does the recent discovery of prolonged current induction challenge existing monitoring frameworks? 150 words
   Attempt this — 150 words in 8 min

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2. As nations increasingly transition toward electrified economies and interconnected power grids, the vulnerability to space weather poses a significant challenge to energy security. Discuss the implications of geomagnetic storms for critical infrastructure and suggest policy measures to enhance grid resilience. 250 words
   Attempt this — 250 words in 11 min

   0 / 250 words 11:00 Reset

Prelims

1. What is the primary cause of geomagnetically induced currents (GICs) in power grids?

   1. A Temporary disturbances in the Earth's magnetic field caused by charged solar particles
   2. B Interconnection of national power grids leading to voltage instability
   3. C Solar flares interacting with the Earth's atmosphere
   4. D Fluctuations in the ionospheric current wedge due to human-made electromagnetic interference

2. In the context of geomagnetic storms, what does the parameter 'H'' represent?

   1. A The conductivity of the local ground surface
   2. B The duration of the current flow through a transformer
   3. C The intensity of the ring current in space
   4. D The rate of change of the Earth's horizontal magnetic field