Second wind | Life | Times Crest
Popular on Times Crest
  • In This Section
  • Entire Website
  • From murgh biryani to McChicken
    July 13, 2013
    Daryaganj, on the cusp of old and new Delhi, is changing - it is now no longer just the home of tandoori and korma. Over this summer, fast food…
  • Cover your hairs, shameless
    July 13, 2013
    She changed her picture on Twitter. And the abuse began to flow.
  • Minute to burn it
    July 13, 2013
    Bored by long workouts? Just seven fast and furious minutes can produce results.
More in this Section
Leaving tiger watching to raise rice Ecologist Debal Deb, who did his post-doctoral research from IISc in…
The crorepati writer He's the man who gives Big B his lines. RD Tailang, the writer of KBC.
Chennai-Toronto express Review Raja is a Canadian enthusiast whose quirky video reviews of Tamil…
Don't parrot, perform Maestro Buddhadev Dasgupta will hold a masterclass on ragas.
A man's man Shivananda Khan spent his life speaking up for men who have sex with men.
Bhowmick and the first family of Indian football At first glance, it would be the craziest set-up in professional football.
From Times Blogs
The end of Detroit
Jobs in Detroit's car factories are moving to India.
Chidanand Rajghatta
How I love the word ‘dobaara’...
Can ‘bindaas’ or ‘jhakaas’ survive transliteration?
Shobhaa De
Anand marte nahin...
India's first superstar died almost a lonely life.
Robin Roy

Second wind


For renewable energy consultant Adarsh Vansey, creating a clean energy system in his own home was a no-brainer. When he designed and built his 2, 500 square feet independent house in south Bangalore's JP Nagar in 2006, he was clear that his home, which he shares with his parents, would be run largely on electricity generated through solar panels and a wind turbine.

Vansey specialises in wind energy and has helped clients across India set up solar-plus-wind systems that reduce dependence on grid power. Unlike most homeowners who opt for the more popular solarpowered stand-alone systems, Vansey opted for a dual system (with solar and a micro wind-energy system) to fully utilise the favourable windspeed his rooftop is exposed to, to generate power during the night. He installed imported 640-watt solar panels (he clarifies that the number of panels have nothing to do with the quantum of energy generated as long as the total surface area remains the same;it is more scientific to refer to the optimal power generation from the panels) and a 650-watt wind turbine made by a Punebased company called Unitron. The total set-up cost around Rs 3. 5 to 4 lakh at the time. "The costs have reduced considerably now because solar panels have become cheaper, from Rs 220 per watt (when I installed these) to Rs 60-75 per watt now, " Vansey explains.

In the Vansey home, the energy generated using the dual units is about 4-5 kilowatthours (kWh) of power every day (one kWh is what we commonly refer to as one 'unit' of power). This is enough to run CFL and LED lights, fans, the TV, washing machine, microwave and refrigerator. The family's hot water needs are taken care of by a solar water heater - a feature that has become increasingly common on the city's rooftops in the past few years.

Part of the solar and wind generating systems are a set of batteries and an inverter. "Solar photovoltaic cells work on the principle of converting light energy to electric energy, " explains Vansey. "This energy is generated in DC (direct current) mode. The wind turbine is simpler;it converts wind energy to electric energy, again in DC mode. This current charges the batteries, which stores it for future use. The current from the batteries is supplied to the house via the inverter. " The household usually has back-up power for two days and is 85 per cent off the grid. Electricity bills are "in the lower hundreds".

So why don't more people adopt this inexhaustible source? Vansey shrugs: "Maybe people are deterred by the high initial costs, but if you're spending upwards of Rs 50 lakh on a house, setting up a renewable energy system isn't even 10 per cent of that. And potentially, you could run a whole city on this!"

Reader's opinion (3)

Sumer JainAug 20th, 2012 at 15:35 PM

Superb!!!This type of articles always attractme. Please tell me what is maintenance cost? Can a non technical maintain it.

Himanshu AgarwalAug 5th, 2012 at 15:44 PM

I want to know more about that.

Manoj Kumar SinghAug 4th, 2012 at 18:59 PM

another interesting green initiative

Other Times Group news sites
The Times of India | The Economic Times
इकनॉमिक टाइम्स | ઈકોનોમિક ટાઈમ્સ
Mumbai Mirror | Times Now
Indiatimes | नवभारत टाइम्स
महाराष्ट्र टाइम्स
Living and entertainment
Timescity | iDiva | Bollywood | Zoom
| Technoholik |


itimes | Dating & Chat | Email
Hot on the Web
Book print ads | Online shopping | Business solutions | Book domains | Web hosting
Business email | Free SMS | Free email | Website design | CRM | Tenders | Remit
Cheap air tickets | Matrimonial | Ringtones | Astrology | Jobs | Property | Buy car
Online Deals
About us | Advertise with us | Terms of Use and Grievance Redressal Policy | Privacy policy | Feedback
Copyright© 2010 Bennett, Coleman & Co. Ltd. All rights reserved. For reprint rights: Times Syndication Service