Category Archives: Renewable Energy

Schoolboy uses windmill power to light up trains

Fifteen-year-old Tripura schoolboy Parinaha Chakraborty has come up with an innovative way of using a windmill to generate electricity that can light up bulbs inside a moving train. Parinaha came up with the idea after travelling on a meter gauge train that did not have electricity, water or toilet facilities — even though such trains cover distances upto 200 km, often at night.

“The conventional energy mechanism is obsolete in these trains,” says Parinaha, who travelled with his parents from Agartala to Dharmanagar on the northern end of Tripura last year sitting in one such train in pitch darkness.

That’s when he started thinking how to improve the lighting. Last December, he hit upon the solution — an incredibly simple and effective one — that involves installing a windmill in front of the train. Using the speed of the train, the windmill produces mechanical energy which can easily be converted into electrical energy that can light up low voltage bulbs inside the train.



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Solar powered car smashes world speed record

Cars & Bikes Renewable Energy

A solar-powered car which produces the same amount of energy as a household toaster has smashed the world speed record for a solar vehicle. The Sunswift IVy car clocked an average speed of 88.8 kph (55.2 mph) at a navy base in New South Wales, Australia.

The car, which has an array of 400 silicon cells, was designed and built by a team of students from the Faculty of Engineering at Sydney’s University of New South Wales. In completing the challenge, the team estimate that the car used around 1050 watts — the same amount of energy you’d need to lightly toast a slice or two of bread. The new speed beats the previous record (78.3 kph) for cars powered by silicon solar cells set by the General Motors Sunraycer in 1988.

The Sunswift IVy is roughly the same size as an average family car, but is one-tenth of the weight thanks to its carbon fiber frame. It has a top speed of 115 kph (71.5 mph) and cost $280,000 AUD to develop. In 2009, the car won the World Solar Challenge — a 3,000-kilometer race across Australia from Darwin to Adelaide — which is considered one of the most prestigious competitions of its kind and regularly attracts entries from some of the world’s top universities.

Sunswift Ivy

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Volkswagen “Bio-Bug” New Beetle runs on poo-power!

Renewable Energy

The UK’s first people-powered VW Beetle has taken to the streets of Bristol in what has been hailed as a breakthrough in the drive to encourage sustainable power. The Bio-Bug runs on methane gas generated during the sewage treatment process. Waste flushed down the toilets of just 70 homes in Bristol is enough to power the Bio-Bug for a year, based on an annual mileage of 10,000 miles.


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IIT boys draw power & water from sewage

Renewable Energy

This article appeared in Times of India dated November 16th 2009. I really liked their concept, and hope they are able to make it happen.

Five students from IIT Kharagpur – Manoj Mandelia, a fourth year student of biotech engineering, Prateek Jain (agriculture and food engineering department), Shobhit Singhal (electrical engineering), Pulkit Anand (energy engineering) and Mohan Yama (PhD student of biotechnology) alongwith renowned biotech faculty member Debabrata Das are working on a simple idea initially thought over by Manoj. They have developed a bio-cell that can not only treat sewage water but also generate electricity a that could offer a one-stop solution to the water and energy crises. Their bio-product has won them rave accolades from the ministry of science and technology and a cash award to carry their research forward.

The idea is simple. The specially designed bio cell (LOCUS) will be set up in the form of a plant, through which the sewage water of a housing complex would be flowed in. The genius of this invention which is awaiting patent lies in the design of the cell that will automatically grow millions of anaerobic bacteria that multiply through respiration. The bacteria clean up the sewage water and in the process generate free electrons. If harnessed, these electrons can generated electricity.

The cell, at this stage, can clean up 50,000 litres of sewage water, about the amount generated by 100 flats in a day. The water produced this way can be compared with that supplied provided by a civic body, the students say. “The purified water has been tested and has been certified to be clean and fit for household use. It is, however, not fit for drinking,” Mandelia explained.

The IIT-Kgp team has even produced electricity with the bio cell. “A township of 100,000 people needs about 2.3 megawatts of electricity a day. It will be years before we reach that stage. But we have already been able to generate electricity. By next year, we aim to generate 350 units, enough to meet 50% of the demand of a 100-flat complex. When we say this we are not taking airconditioners into consideration,” said Prateek.

Original Article can be found at :

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Why this category?

Renewable Energy

Off late, I have been following this industry a lot, and feel that this is the future where every one can contribute in his/her own way. Solar Energy, Wind, Renewable energy from drainage water – the list is going on. And most of this are from natural resources. Since I am following a lot on this, I thought I will post my thoughts on my blog – maybe it will be useful to me somewhere in the future. Renewable energy as a new business proposition – why not? It is a possibility to start something on this field, with like-minded people. So if you are interested, do write to me.

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