Ad Here  
Reality Check Star studded city Hey Chitti! please take my order State VAT leads to inflation: a study Safe Trac-keeps track on your safety Meters return to the metro Chennai airport to become solar-powered A praiseworthy peer recognition Engineering colleges lose lustre Chennaites lose 7 crore to debit card frauds International conference on saving energy, environment Maruti Suzuki wins NIQR award A new technique to treat dry sewage Planning the right energy Outlays and outcome – the long gap He made Ranganathan Street so crowded... Chennai teachers rank low Pocket Therapist finds mention in Forbes Is Chennai now the accident capital? Vanakkam Chennaiyin FC Force Motors’ two new SUVs Mexico opens Consulate in Chennai Tamil Nadu Premier League launched Coimbatore backs up for Chennai 377 yet young Must visit of 2014 Metro mania Talk your way and land in a job Presto! Bravo! Water woes Read before you buy... Colourful welcome at the Saidapet station Nilam threatens the city Cricket comes calling to Chennai Green energy, not really green? Bewailing monsoons the new fad A budget that butted into deficit Chennai Silks in flames Prithika Yashini takes charge... Working space for women by woman Self-sufficiency in dredging... A feast for book worms Apollo targets a third of CV tyre market Kollywood’s Mahabharatha Murugappas-focus on consolidation The auto gets a remake City Corner Tambaram tracks…. Water wars begin Raj Bhavan opened the gates for public Technologists to rescue 60 years of cultural and economic ties Perplexing communications India’s first 3D Museum Chennai soon to get an Aerospace Park It’s so cool! Hawker’s paradise gets a permanent place Chevrolet Sail U-VA Launched Thrills for the holiday season The sweet killer Doing business is not so easy in Chennai A sweet marketing splash by Pattappas TTV stumps all Black outs will be knocked out The 20-year itch of Hindujas ends When Chennai became Venice Yes, you are safe! A skinny affair An industry institution link… Online approval of layout plans SGRI – a global research centre for building materials Realty bytes Yamaha in the news Frontier Mediville attracts Japanese investments Book your water tanker K7’s Entrepreneurial Odyssey Aviation sector to grow three times... It is not only your noodle... Million landmark and Rs. 200 crore influx by Yamaha City Corner Sathyabhamasat propels ahead Know the start-ups in the city Chennai, the noisiest city Metro chugs through the city The curious case of Evgenii Berdnikov Indian media-operators of democracy City Corner - Chennai North Chennai booms Need for an integrated approach to medicine How to roast 45 human beings alive Chennai Metro looking for revival City Corner-June Overflowing garbage The sunshine and the shadow side of this digital era Chennai gets its Imax Indian of the Year This dabba has a cure for all your ailments Boozing and driving India’s first online-only bicycle brand The underground don zips through Car-free Bessy Arnold visits Chennai Paranjoy on crony capitalism Ennore Port excels Building highs and lows The sweet tooth of the city The worst is yet to come Missing, but not missing the top spot Education a cause of concern Metro chugs the green way When Marina became the Tahrir Square CMRL takes off till airport I know nothing else but cinema... Technology handshakes with sanitation Chennai to Bengaluru as quick as pizza delivery Keep in touch, anytime anywhere Medical miracle! When the crowd will miss the roar Two friends trigger a change From trash land to tourist spot Google street view’s India competitor
Black outs will be knocked out

With summer fast approaching, power black outs loom in the horizon. The electrical man, Ashok Jhunjhunwala, the head of the department of Electricals at IIT-Madras enthralled the audience with a rather simple solution. “All our appliances use only DC power. Since our input is AC power, we lose about 20 per cent to 50 per cent in conversion of DC to AC power. In the future, refrigerators, air conditioners and washing machines will all run on DC power,” said Jhunjhunwala at the Extra Mural Lecture series.

    The research team at IIT led by Jhunjhunwala has designed a simple switching mechanism, which when senses a voltage  drop in grid supply, will automatically switch the input power to DC mode. With this 10 per cent DC power, 2 fans, light and a mobile charger can be powered comfortably. An additional 50 watt solar power generator at the roof top will comfortably power the house.

    The Extra Mural Lecture series which is now on its 30th year, is a yearlong event that brings people from different walks of life to address the students. This is now being extended to other colleges in and around

the city. The average power consumption by DC fans and lights is less than half the power consumed by AC devices. Jhunjhunwala suggested a 38 volt DC line at homes is absolutely safe and shock free.

He stated that solar power panels of 50 watt that cost around Rs 25,000, if erected on each roof top, can meet the demand of the house and the DC power generated by the solar panel, if directly used without being converted to AC current, can save a lot of energy. An estimate made by the researchers point out that all households use roof top solar power, it will off set a load of 190,000 GWH per year which is almost equal to the annual total domestic consumption.

Jhunjhunwala anticipates India would become free from power cuts in 5 years and in next 15 years 50 per cent of power could be from solar.

Author :
Reported On :
Sector :
Shoulder :
IE, the business magazine from south was launched in 1968 and pioneered business journalism in south. Through the 45 years IE has been focusing on well-presented and well-researched articles. When giants in the industry stumbled to keep pace with the digital revolution, IE stayed affixed embracing technology.
Read more
Economist Communications Ltd is committed to ensuring that your privacy is protected.
Read more
You agree that your use of this Website and the purchase of the magazine will be governed by these terms and conditions.
Read more
S-15, Industrial Estate,
Chennai - 600 032.
PHONE: +91 44 22501236