how exactly is electricity created and why are there so many ways to do it (ie hydro, coal, nuclear,etc)
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An electric motor uses electrical power to spin a shaft attached to the motor. A room fan is a simple example. You can also generate electricity by instead spinning the shaft of the motor. There’s many ways to spin the shaft with a force. Again with the room fan, you can blow high pressure air across the fan and the motor will generate electricity. Wind power. Or you can spin the fan blades with high pressure water. Hydropower. Or you can use high pressure steam to spin the fan blades (water heated by burning coal or natural gas or using radioactivity). The bigger the fan blades and the motor, the more electrical power you can produce.
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