Students will be able to
- understand what causes changes in demand for electricity over the course of a day and over the course of a year,
- understand that some power stations are kept below maximum operating power so that they can speed up quickly if the demand suddenly increases,
- understand how quickly or slowly a power station can start up or turn off for the different main types of power stations: coal-fired, gas-fired, nuclear, and hydroelectric dam,
- understand that when the electrical power is transmitted across electricity networks, it is transmitted at a high voltage and a low current.