The primary source of electricity generation in Punjab is thermal power plants. Thermal power plants use heat to generate electricity. The heat can come from burning coal, natural gas, or oil. Thermal power plants are the most common type of power plant in the world. They are also the most polluting type of power plant.
Hydroelectric power plants use the power of moving water to generate electricity. Hydroelectric power plants are a clean and renewable source of energy. However, they can only be built in certain locations where there is a lot of water flowing.
Renewable energy sources include solar, wind, and geothermal power. Renewable energy sources are clean and do not produce greenhouse gases. However, they are not always available, and they can be expensive to build.
Nuclear power plants use the heat from nuclear fission to generate electricity. Nuclear power plants are a clean and efficient source of energy. However, they produce radioactive waste, and there is a risk of accidents.
The correct answer is: a) Thermal power plants.