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energetica-india-55

ENERGY EFFICIENCY MR. GURUPRAKASH SASTRY REGIONAL MANAGER – INFRASTRUCTURE, INFOSYS Infosys: Front-runner in energy efficiency- A Case Study Focused efforts on smart buildings systems, retrofits, new building designs with an efficient envelope, and renewable energy, have significantly reduced Infosys’s per capita energy consumption in the last seven years. The high performance buildings built by Infosys have demonstrated that with today’s technology we can design buildings which will consume one third of the energy of normal buildings at no extra capital costs. Over the last seven years, the company has been able to avoid consumption of over 880 million units of electricity, reducing their per capita energy consumption by 46 percent as compared to the 2008 levels. Energy is a precious resource, playing a pivotal role in shaping our country’s social and economic development. Energy access, energy security, and climate change pose enormous challenge to India’s goal of achieving inclusive economic growth. There is a huge dependency on fossil fuels to meet the energy needs. India is dependent on crude oil imports, about $125 billion annually, to meet its energy demands, even as 300 million of the population is without electricity. In the face of rising energy demands and limited energy supply, the role of energy efficiency in bridging the energy gap cannot be undermined. Energy efficiency improvements have the potential to accelerate economic growth and benefit the society at large. It yields benefits across different levels of an economy including, increased energy security, carbon emission mitigation, reduced energy related expenditure, poverty alleviation, improved health and well-being, industrial productivity, and so on. Building sector accounts for over 30% of the total energy consumed in India. We have estimated that, out of this, more than 40% of energy use is taken up by heating and cooling systems. As corporates need continuous power supply to run their business operations, intervening in these areas draws attractive reductions in energy use and costs. In the recent past, energy efficiency is gaining momentum among many corporates. Push towards renewable energy, energy efficient lighting, cooling, and heating system, etc. is being witnessed in India. Infosys is leading from the front in this area. It has made its buildings and operations the most efficient ones and is still continuing to do more with less. Focused efforts on smart buildings systems, retrofits, new building designs with an efficient envelope, and renewable energy, have significantly reduced Infosys’s per capita energy consumption in the last seven years. The high performance buildings built by Infosys have demonstrated that with today’s technology we can design buildings which will consume one third of the energy of normal buildings at no extra capital costs. Over the last seven years, the company has been able to avoid consumption of over 880 million units of electricity, reducing their per capita energy consumption by 46 percent as compared to the 2008 levels. All Infosys buildings are designed to achieve the new performance benchmarks (see table 1). Infrastructure required for 1 million sq.ft is in table 2. Infosys has achieved significant energy savings by 1. Developing super-efficient new buildings, 2. Retrofitting existing buildings, 3. Pushing boundaries and innovating, and 4. Continuous monitoring to achieve highest levels of efficiency. Super-efficient building designs Many buildings have over-designed systems due to use of thumb-rule calculation methodology, change of usage pattern, etc. leading to inefficient operations. Infosys has recognized that intervening in these areas can help fetch great results. Thus, Infosys focuses on bringing efficiency right from the design stage to eliminate inefficiencies. Infosys buildings are designed with a super-efficient envelope having appropriate north-south orientation, insulated walls and roof, optimized window-wall ratio of less than 30%, narrow floor plate, and high performance glazing with adequate shading. Window TABLE 1 Performance metric Infosys new design Energy Performance Index 75 kWh/m2/year Lighting design 0.48 W/sq.ft Air-conditioning design (Reduction in heat load) 750 sqft per TR Total building electrical design 3.5 W/sq.ft TABLE 2 System Description Units Infosys new designs Conventional designs Total electrical load MW 3.5 10.0 Transformer capacity MVA 4.0 12.0 DG set capacity MVA 5+2.5 15+3 Annual energy consumption Million kWh 7.5 25 48 energética INDIA · JAN | FEB16


energetica-india-55
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