Solar energy is the renewable electrical energy that is converted from the Sun’s light and heat through technological means such as solar photovoltaics (PV) cells. Unlike other forms of energy, such as coal, solar energy produces no pollutants and has no negative environmental impact.
A majority of our planet’s electricity supply is being generated from fossil fuels such as coal, oil and natural gas. These energy sources are staring at irreversible and damaging issues, including rising prices, security concerns, over dependence on imports from a limited number of countries and growing environmental concerns about the climate. Topping this list is the fact that these resources are finite and are depleting fast. It’s not a question of ‘if’, it’s a question of ‘when’.
Today, the time has come when humanity has to tackle two critical challenges – meeting the ever growing global energy needs and fighting global warming for a better tomorrow. So, how can we do this?
Researchers have pointed out that if a small chunk of the Sahara Desert (an area of 254 km x 254 km) is used to generate electricity through solar power, it would be enough to meet the total electricity demand of the world.