For fiction books featuring the use of EMPs that lead to partial or complete loss of electricity, often leading to a post-apocalyptic setting (though not always).

Books that feature extensive solar storms or flares that destroy, knock out or cause major damages in the electrical systems are also welcome on the list.

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An electromagnetic pulse (EMP), also sometimes called a transient electromagnetic disturbance, is a short burst of electromagnetic energy. Such a pulse may occur in the form of a radiated electric or magnetic field or conducted electrical current depending on the source, and may be natural or man-made...EMP interference is generally damaging to electronic equipment, and at higher energy levels a powerful EMP event such as a lightning strike can damage physical objects such as buildings and aircraft structures...The damaging effects of high-energy EMP have been used to create EMP weapons. These are typically divided into nuclear and non-nuclear devices. Such weapons, both real and fictional, are gaining awareness from the public by means of popular culture. (Wiki)