Sunday, December 27, 2015

India's carbon future: the design of buildings

This article by Charu Bahri, of IndiaSpend.com outlines how India can save a lot on the energy consumed within its buildings by good building design practice.

Some quotes:

In 1971, residential and commercial buildings accounted for 15% of all the electricity consumed in India. By 2005, that share had doubled, and it has stayed at about 30% since.
...In absolute terms, however, the electricity consumed by buildings is rising, and is poised to rise 700% over 2005 levels by 2050, says a study by Rajan Rawal, executive director of the Centre for Advanced Research in Building Science and Energy, CEPT University, Ahmedabad.
...Unless energy use is curbed, domestic consumption of electricity in India is projected to grow 800% between 2005 and 2050, according to Rawal’s research.
...Enforcing the Energy Conservation Building Code, an energy-saving code designed for commercial establishments, in residential buildings, could reduce residential energy consumption up to 57% and curtail rise in consumption to 300% over 2005 levels, over the same period, said Rawal.   “It would also make buildings so much more comfortable to live in,” he said.
....With more than half of commercial building stock needed by 2030 yet to be constructed, the country has a huge opportunity to get its act right and construct better. In recent decades, India seems to have been doing the opposite.
 Example:
Prior to 2008, Infosys, India’s second-largest IT company, developed some of the country’s most iconic glass buildings. Then, something changed.
...So far, Infosys has cut per capita electricity consumption by 46% from 2008 levels. Despite doubling employee numbers from 2008, its energy needs have grown only 13%.
 

Comments (4)

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I wonder how much of the increased power consumption is due to domestic air conditioners, use of which has exploded in the last 15-20 years in India, and will continue to rise.

The current construction technology (RCC buildings) is unsuited to the Indian climate (hot and humid). There has been virtually no innovation in India on building materials appropriate to Indian conditions.
1 reply · active 480 weeks ago
Sorry for the broken link, should be fixed now. Yes, a good proportion of increased domestic consumption is due to air conditioners.

Info about the Energy Conservation Building Code can be found here: http://www.eco3.org/ecbc/
Even RCC buildings can have insulation added, that helps with energy efficiency with respect to cooling (or heating).
Sharad Joshi's avatar

Sharad Joshi · 477 weeks ago

When did the last major innovation take place in India since the Indian mathematicians invented the zero?
1 reply · active 477 weeks ago
See, for example, the Kerala school of mathematics: https://en.wikipedia.org/wiki/Kerala_school_of_as...

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