E1 destroys small micro chips like those in computers and phones . Which in itself would be problematic from both a civilian and military standpoint . E2 I honestly do not know about . E3 can melt electrical coils in things such as transformers and anything else connected to an electrical transmission line . -- Some people think they have hardened their home electrical systems and I will not try to argue the point . The thing is the hardening is likely based on the Starfish Prime experiment and the expected strength of an EMP . Since then super EMP capabilities have been developed which can direct an EMP blast in the target's direction similar to an shaped explosive device . These new EMP devises are smaller but much more potent than those that scientist thought was bad back during the Starfish Prime days . --- I have mentioned before but it appears governments have worked hard to keep the peasants ignorant in order to keep them calm and docile . This concerns hostile governments putting EMP devises in Satellites that can be detonated at the hostile countries discretion . The internet has been scrubbed of this information .Well finally this information just resurfaced via the video I posted . It appears even the hermit country North Korea has " two " satellites that cross over the United States as well as other countries " twice " each day . These two satellites have " never " sent out a signal of any kind , but just sit silently over our heads . Yes they are orbiting at the desired altitude for an EMP . --- We can expect a minimum of two years of gaining electricity back and that is a very optimistic estimation by the experts . First the attacking country can easily make sure the needed new transformers and such or either never built or never arrive . Second we can expect governments to try to get their favorite part of their country back up and running and leave rural prepper oriented areas in the dark . The areas where people don't vote right .