Question

List 5 types of non-carbon alternative electric power systems. For each system, briefly describe the power generation mechanism. Non-carbon electric power systems may not always be environmentally friendly. Is this statement true? Support your answer using 2 types of non- carbon electric power systems from your list with detailed arguments.

Please help. Thanks

Answer 1

the 5 types of non carbon alternative electric power systems can be :-

1. Solar energy : this type of energy is produced by the sun which is a natural source of energy. in this we plant solar panels which converts energy of the sun into electricity. they work by absorbing photons from the sunlight and then knocking electrons free from atoms generating electricity.

2. Wind energy : this type of energy is produced by the moving winds we place large winmills having fans which are connected to a turbine so when wind moves the fan the turbine produces the electricity.

3. Nuclear energy :   this type of energy is produced in the nuclear reactors by the process of fission when a radioactive element is splitted it releases huge amount of energy then this energy is used as a form a heat which then rotates the turbine by steam and then producing electricity.

4. Hydro energy : this type of energy is produced by building dams across the rivers storing huge amount of water then making the water flow through turbine the electricity is produced.

5. Tidal energy : this type of energy uses the kinetic energy of the waves when the waves are affected by the pull of moon and sun which helps to refill the reserviour (unlike hydroelectric dam)

yes they are not always environmentally friendly

take hydro energy, we need a huge amount of space to store water and due to that a large amount of forest area is cleared also the aquatic life is affected by building dams

secondly take nuclear power plants they produces radioactive waste which is very harmjul for all the lifes on the earth also there is always a danger of leaking of radiation (take an example of chernobyl) which hugely affect the whole area around it