Madhu Vajrakarur, a 23-year-old electrical engineering student from Andhra Pradesh, has built a wind turbine that can generate electricity and clean drinking water.
The two-in-one wind turbine produces an average of 30KW power and 80-100 liters of water per day. This means it can meet the electricity demands of about 25 households.
The 15ft tall structure was made using plastic pipes, iron rods and some other elements. He started making the turbine in the first week of October 2020 and finished it within 15 days.
The young inventor took help from welders to make the fan, and his friends helped him deploy the structure. It cost him a total of Rs 1 lakh, which was provided by his parents and from his own savings.
There is a vent in the centre of the fan attached to the wind turbine, through which air is taken in. It is then cooled with the help of a cooling compressor. In this way, the water vapor present in the moist air is converted into water, which is sent through copper pipes down to storage tanks for filtration and purification.
The local administration has already acknowledged the budding talent’s work. Very soon, Madhu will be noticed at the national level too.
Ironically, Prime Minister Narendra Modi was heavily trolled in October by Rahul Gandhi and netizens for claiming wind turbines can produce water.
Rahul had tweeted: “The real danger to India isn’t that our PM doesn’t understand. It’s the fact that nobody around him has the guts to tell him.”
The youth had a tough childhood when he was deprived of both clean drinking water and electricity. Hence, he decided to work on a solution that would eliminate the problem of several rural villages across the country.
“I was born and brought up in Vajrakarur village. Here, the main source of water supply is through borewells and water tankers. The water drawn from the borewells is heated and then used for consumption. When there are no rains, the groundwater level drops and we are dependent on purchasing drinking water from tankers. My father is a farmer and my mother is a housewife, so their income is low. On some occasions we could not afford to buy the water while other times we would depend on borrowing from neighbours,” he said.
India is the world’s fourth-largest wind energy market and the government intends to add around 100GW wind energy capacity by 2030.
According to the World Health Organization, billions of people around the world continue to lack access to pure drinking water, sanitation and electricity. Although water and electricity supply has significantly increased in India, many people still lack access to these basic facilities.
The 17 Sustainable Development Goals set by the UN in 2015 intended to be achieved by 2030, include availability of clean drinking water (Goal 6) and affordable and clean energy (Goal 7).
Amid changing climate and desperate need to “go green”, Madhu’s invention may prove to be a boon for the country.