One of the main problems with power shortage is that all communications (the Internet, satellite communications, even cables) around the world require power supply at both ends.
Without communication, it is difficult to start the process of regaining power to any organization or country. In the case of EMP, there are few problems as in @ XandarTheZenon's comment. Many servers around the world depend on individual principles. This basically means that the server has very cheap parts that can be easily discarded when they start to wear.
It is easy to replace damaged parts by EMP, we basically fill the warehouse with parts
This means some way to recover it. Basically it is possible to obtain small household appliances using diesel generators, so a considerable amount of this is not a big problem. Most reactors require a cold start generator that is not damaged by explosion. Cold start Nuclear power plant is not the easiest thing, but this is another problem
You may know that there is no electricity for a while. We did this before. In most cases, humans form a closely interwoven community and concentrate in specific areas.
In the long term there is no reason not to develop agriculture on a large scale, there is infrastructure, honestly small farmers may continue normal work there.
There is no danger of death in the humanities. We have most of our short food and necessary supplies. But what does daily life look like in the long run?
Production on small farms is easiest to raise the most caloric plants such as potatoes. The reason behind this is that the amount of space we can maintain without the drones and advanced satellite images is still large.
So far, humans are truncated. Assuming that it takes more than ten years to establish and operate a communication network, we form a small village consisting of several people and their relatives. At dawn of this disaster, everyone must bear their weight.
There is no reason to say why cars that do not depend on computers mainly do not work. Every standard will function correctly. Because it is difficult to obtain, our fuel may be more conservative.
Imagine a world without electricity. Computers and electronic equipment will not function and the Internet will disappear suddenly. This is not just the premise of a science fiction TV program like a revolution, but it can also happen in the real world, especially when it is called corona mass emissions (CME) where heavy solar radiation bursts collide with the earth. Our planet has been shelled by sun particles and radiation, but usually the Earth's magnetic field can absorb and dissipate it, resulting in the emergence of beautiful light at high latitudes, sometimes called auroras. However, occasionally a massive plasma from the sun strikes the Earth and floods the magnetic field, so that the geomagnetism storm can have devastating consequences for us living on the surface.
Electricity is actually the flow or movement of electrons through a substance. Power plants usually utilize magnetic conduction for electrical conduction. This occurs when many wires rotate in the magnetic field and move electrons (that is, current flows). In a power plant, the potential energy of various types of fuel (fossil fuel, nuclear energy, or renewable energy) is converted to another type of energy (usually mechanical or thermal). This energy is used to rotate the fan blades in the turbine. These blades are attached to the shaft. When the blades in the turbine start to rotate, the shaft starts to rotate. This causes the wire in the magnetic field arranged in the generator to rotate. The resulting electron flow is electric