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2:01 pm - Thursday February 22, 2018

Bijli Bacho: Switch to DC with no power shortage

Agencies, New Delhi

If you are tired of paying high power bills, a new formula of Solar DC Inverterless system has been carved out by IIT Madras students.

Center for Decentralized Power Systems (CDPS) at IIT Madras took the bold step of conversion of in-home power distribution from 230V AC to 48V DC, so as to directly power DC appliances and directly tap roof-top solar power. It resulted into most energy-efficient solution for homes and offices.

With the maturing of electronic technology, electrically powered home and office appliances are becoming far more energy efficient, by using only direct current (DC).

To power them using existing AC power lines, each such device needs an AC-to-DC converter which adds to the losses, cost and unreliability, said Prof. Ashok Jhunjhunwala, Faculty In-Charge, IIT Madras Research Park and Professor, IIT Madras.

India is fortunate to be blessed with good solar availability, making the sun a promising renewable energy resource. Roof-top solar photovoltaics, when directly used to power a DC line, offers the lowest-cost decentralized source of electricity to supplement power from the grid. With the addition of modestly sized batteries, the system promises energy delivery even during load shedding and long power-outages.

Solar-DC is also a viable and cost-effective solution for powering homes in remote off-grid areas, due to its reliability, affordability and its operation without dependency on grid.

 

Posted in: Business

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