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Abstract: The paper investigates the causality relationships among energy consumption, carbon dioxide (CO2) emissions and income in India using a dynamic modeling approach. The paper also utilises an innovation accounting method to investigate profiles of the macroeconomic variables persisting from an unanticipated shock in innovation. Our results provide evidence of the existence of bi-directional Granger causality between energy consumption and CO2 emissions in the long-run but neither CO2 emissions nor energy consumption causes movements in real income. There is no causality relationship between energy consumption and income in any direction in the long-run implying that India could follow energy conservation and efficiency improvement policies without impeding economic growth. This will allow India to reduce CO2 emissions without affecting its economic growth and contribute significantly towards combating global warming as well. [Copyright &y& Elsevier]

Abstract: India has a very large potential for harnessing renewable energy sources. However, there is a large gap between the estimated potential and the cumulative achievements made so far. A variety of reasons are attributed to the current low levels of dissemination of renewable energy technologies in India as against their respective estimated potentials. Several of these attributes could, one way or the other, be related to the current status of development of the technology, its appropriateness and dissemination strategies adopted for their diffusion and deployment. Results of an attempt to assess the current status of some renewable energy technologies in India are briefly presented in this paper. The main findings of a structured questionnaire based survey undertaken for eliciting views of different categories of stakeholders on various issues affecting dissemination of renewable energy technologies in India are presented in this paper. [Copyright &y& Elsevier]

Solar Tower technology has gained considerable momentum over the past decade. Unlike the parabolic trough, Solar Tower has a lot of variants in terms of type of receivers, working fluids, power cycles, size of heliostats, etc. Most of the literature available on this technology does not address in great depths, details of various parameters associated with tower technology. A detailed examination of plant parameters is required in order to perform a potential assessment, design basis or feasibility analysis. This paper aims to assess the principal parameters of existing plants, namely, solar to electric conversion efficiency, mirror and land area per MW e of equivalent capacity, packing density, field layout configuration, receiver size, tower height and gross costs of plants, wherever data is available. Based on this global review of existing plants, it is observed that, the annual solar to electric conversion efficiencies has an average value of 16% and the packing density has an average value of about 20%. Since most of the existing plants have been constructed for demonstration purposes, the true potential of this technology has not yet been realised. Using this assessment as a basis, the technical, financial and policy drivers and barriers for adopting tower technology in India are discussed. It is seen that based on indigenisation prospects, tower technology with external cylindrical or cavity receivers with storage could be adopted. The role and significance of this technology is brought out in the context of the Jawaharlal Nehru National Solar Mission (JNNSM) in order to achieve grid-connected solar power. It is estimated that around 1800 MW of grid connected Solar Tower plants could come up under this mission by 2022. [ABSTRACT FROM AUTHOR]

Abstract: In the past two decades, ground source heat pump (GSHP) system has made good impact on energy saving in the Western and European countries in heating/cooling and industrial applications. Their potential for reduction in CO2 emission has been very well utilized by these countries to contribute to a green environment. In this paper an attempt is made to give an overview about how India can benefit from this technology. The economic growth of India has huge impact on energy and environment of the country. Though Indian building sector is growing in multifold, still there is a demand for electricity to meet the needs of people. Any technology to reduce energy consumption will have great impact on people's life and economy. In this way a study has been carried out to estimate, to what extend the ground source heat pump technology can help India to reduce its energy demand and also save the environment. This study covers 10 provinces of northern part of India which require both heating and cooling. Based on the topography of the states, they are classified into severe winter states and moderate winter states for heating requirement. During winter period the conventional electric heaters consume electricity between 1416 and 7085GW annually and for the same heating load GSHP consumes only 471–1416GW. In summer months the electricity consumed by conventional air conditioner ranges between 5506 and 27,532GW and by GSHP it varies from 4811 to 14,440GW. The annual CO2 emission by the conventional systems used for heating and cooling vary between 5270 and 26,352millionkg of CO2. In the case of GSHP CO2 emission lies between 4022 and 12,071millionkg. It is estimated that by employing GSHP technology India can save annually a minimum electricity of 1639–18,700GW and CO2 emission of 1.3–14.2 million tons. [Copyright &y& Elsevier]

Abstract: This paper discusses the potential of renewable energy, investment and CO2 mitigation by renewable energy technologies. Currently, India's per-capita emissions are around one tonne of CO2/year. The present energy scene offers India a window of opportunity to invest in renewable energy. The annual turnover of renewable energy industry has reached $12.3 billion in 2011, which is 36% higher than 2010 investment of $7.5 billion. Increasing the share of renewable energy in overall energy mix is an effective option to mitigate CO2 emission. Presently, the share of renewable energy is around 12% in the energy mix. The present study estimated CO2 mitigation potential of Indian renewable energy sector about 203milliontonnes with an installed capacity of 24GW in 2012. However, enormous potential identified in renewable energy sector with favorable CO2 mitigation the government is compromising with limited financial resources. However, policy efforts need to be strengthened to encourage a massive scale-up of renewable technologies to build sustained low carbon economy. [Copyright &y& Elsevier]

Abstract: The future economic growth for India is likely to result in rapid and accelerated surge in energy demand, with expected shortages in terms of supply. Many of its current policies and strategies are aimed at the improvement and possible maximization of energy production from the renewable sector. It is also clear that while energy conservation and energy efficiency can make an important contribution, renewable energies will be essential to the solution and are likely to play an increasingly important role for providing enhanced energy access, reducing consumption of fossil fuels, and helping India pursue its low-carbon progressive pathway. However, most of the states in India, like the northernmost state of Jammu and Kashmir, have experienced an energy crisis over a sustained period of time and the government both at center and state level has to embark upon with these pressing issues in a more sustainable manner and accordingly initiate various renewable energy projects within these states. This paper will provide a broad-spectrum view about the energy situation within Jammu and Kashmir and will highlight the current policies along with future strategies for the optimal utilization of renewable energy resources. [Copyright &y& Elsevier]