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A whole new era of buildings

Chandrashekar Hariharan

THERE were some 30 people around the table. Many of them were heads of construction companies doing at least $ 20 million of business each. They shared a single commitment: to change the way in which we impact energy, water and waste management in the country.

The first national executive meeting of the CII India Green Business Council was being held in the recesses of the Lonavala hills in Maharashtra on a winter weekend. For the businessmen present here was an opportunity not only to reduce the pressure on the planet’s resources, but also to run their companies more profitably.

Like someone said, “If Copenhagen simply concentrated on governance of the construction industry, the world would drop a chunky 25 per cent of its energy use every year.”

Helping industry leaders come to terms with new realities were planners, researchers and some very senior bureaucrats. There was news that was quietly being shared on the future that is set to unfold in India in the coming months.

“Every government building to be built will be only a green building,” said the Director-General of Central Public Works Department (CPWD), B K Chugh. The minimum rating would have to be three stars by energy efficiency standards.

There are 1,200 universities set to open their doors in India under the stewardship of Sam Pitroda, the current head of the Knowledge Commission.

There are eight innovation universities that are being cleared by the government. There are 580 special economic zones (SEZs) that have been permitted by the government and nearly 400 of them are ready.

All these will follow green construction norms. SEZs will have to conform to guidelines specially formulated for them. The Director-General of SEZs in India, has worked over the past six months on a set of norms that every SEZ has to adhere to.

Consider more. The glazing industry has a society that is presided over by a professional who is concerned about the high use of sand in glass manufacture.

“Every square meter of 5 mm glass weighs about 12 kg, and 40 per cent of this is sand. So what are the options to optimise use of this precious natural resource that is rapidly vanishing from our river beds?” he asked.

There are big challenges ahead of the construction industry if it wants to save itself, straddle business growth and make for urban development that does not accelerate CO2 emission.

A cubic meter of concrete uses about 300 kg of cement. Every million square feet of any construction means a staggering 40,000 cubic metres of concrete, or 12 million carbon kg of emission!

How do government and industry turn to sunshine, wind, water, and waste to bolster energy efficiency, accommodate population growth and thrive without accelerating the release of carbon into the atmosphere? San Francisco has already made it a crime not to compost food and wet waste in a bid to cut landfill use to zero. Barcelona has now brought in regulation that says all new and renovated buildings are required to install solar collector panels for a big part of their water-heating needs. Rajkot has made mandatory the installation of solar heating systems for sanction plans for individual homes and for residential builder projects.

Beginning January 2010 commercial buildings in India will never be the same again. The Bureau of Energy Efficiency has brought in a simple regulation under a set of rules called the Energy Conservation Building Code (ECBC). In the last two years the ECBC was merely a set of guidelines that office buildings could use voluntarily. It is no longer so. The rules have to be followed.

The earlier guidelines were applicable only for commercial buildings that consumed over 500 KVA of energy. The new guidelines-turned-rules mandate that every commercial building that uses over 100 KVA will have to be governed by the ECBC.

Not enough support systems

As the President of the India Green Building Council, Raghupathi reflected at the Lonavala conclave, “There are not enough professionals who can audit water and energy practices. There are not enough professionals who can offer solutions into this new realm of building language.”

The head of a building major said, “Architects have to learn to respond to needs that go beyond space, home, aesthetics and volume.”

The world of consultants who have traditionally offered solutions for water management under the quaintly termed ‘public health engineering’ practices, now have to recalibrate their understanding of water, of land, and of groundwater retention. Electrical consultants and engineers have to move away from the traditional supply-side management of solutions to a whole new sphere of demand-side strategies for energy. There are not enough practitioners of waste management. Technologies for any of these systems are still a little primitive with technocrats still not savvy enough on business management or on brand management. So, the good ones remain unknown. The conventional consulting professionals continue to offer solutions that are not reflective of these new concerns and challenges.

There are no testing labs for innovations in building material. Testing for energy and for structural stability is something that will gain prominence rapidly in the next two or three years. The MNRE, the BEE, USAID and many other industry bodies and government agencies are working toward creating such testing infrastructure that can help industry de-risk potential failures in building management systems and building materials in the long run.

India is clearly leading the world today in this major movement toward building green. Today we have over 321 million square feet of certified buildings that makes India the second largest in the world, only after the US. The quality of such energy efficiency in India is superior to what the US has achieved since 1994 when the green building movement actually began there. The CII India Green Building Council is determined to achieve one billion square feet of such certified green commercial buildings by 2012. This is two years from now.

The interesting other trend is that in the residential building sector, too, India has made rapid strides to become the second largest in the world at 100 million square feet of green residential buildings.

But there is much that is needed from industry and technologists.There are no more than 90 green building products and equipment that are available just now in the Indian building market. This is against about 2,000 on offer in the US. The need for simple innovation with high market acceptance and reliability of performance needs hardly needs to be emphasised.

Spreading the good word

If this movement has to gain in strength evangelists have to spread the good word and secure enrolment from every stakeholder.

There is the need for rating systems and certification. Today in India we have three building rating systems with only one of them, the CII IGBC, having made some tangible inroads into organised dissemination of information. The IGBC today has nine chapters, all of them manned and driven by voluntary effort from business leaders who have nothing to gain but the satisfaction of addressing these larger concerns of the planet.

GRIHA and the Pune-based Eco-Housing System are the other two systems that have still not gained adequate visibility on the national urban horizon. The government and its officers at the senior echelons are still to fathom the consequences of the host of technologies, directions, voluntary and regulatory standards, and the building management systems, data and analytics that make for energy efficiency in buildings.

The myth of higher cost

Green buildings don’t cost more than conventional ones – only the demands are different and need a better understanding of the resources that go to make a building. Architects are usually blamed for bad practices, but it will be sobering to remember that no more than two per cent of all buildings in the country are actually designed and driven by architects. The unorganised sector is far too large for effective monitoring of regulations and implementation. That will be the big challenge before us in the next five years.

Advertising campaigns are needed to deter home-owners from buying what is not certified. Smalltime contractors have to be sensitised. The cement industry has to reinvent itself into not manufacturing pure cement but looking for structurally sound solutions that use a blend of waste materials like fly-ash from thermal power stations and slag from steel plants.

Consumers must realise that every kg of cement equals one kg of carbon. A mere cubic meter of concrete uses 300 kg of cement and weighs 700 kg, with the rest of the weight being made up of sand and stone which are essential for concrete but which deplete natural resources in the periphery of every city and town. Every ton of steel depletes about 280 tons of rich forest resource for the iron ore that needs to be mined.

Can our cities become self-dependent without having to gorge these rich resources of ecosystems outside our cities? Can our cities stop feeding on rivers for power, water, and timber? Can our mineral resources be stopped from being pillaged at the frightening pace at which they are being exhausted now?

As I stepped out into the cool thin air of Lonavala that late evening, it was difficult not take a hard deep breath and savour it. How long will these silent forests continue to take this vandalism from civilized people? I looked at the brightly lit winter sky. The stars stared inscrutably back.

The writer is CEO, BCIL, the Bangalore-based green buildings pioneer.

January 2010 Edition
 
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by :Virendra Varma On : 1/30/2010 5:24:50 PM


There is already a consciousness amongst the industry to use energy efficient designs and materials, which is exemplified by the efforts of companies like BCIL. I really appreciate these initiatives. However, if we expect radical changes in the building industry, it can happen only if the people prefer, and then gradually demand, the sensible option of Green Homes, as in energy efficient homes, to the ones that are energy-inefficient. Kudos to BCIL and its dedicated team for their exemplary efforts.






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