How does it work? (function)

Power plants make electricity 24-7. Though they need lots of power and fuels to power the powerplants. Coal and oil are used at powerplants. Most of the coal we use now lived or grew in swamps. Coal is used 2.2% of the time. While electricity os used 91.7%. You can get coal in two main ways, surface and underground mining. The method of surface mining is called strip mining.