Global Cooling Efficiency Program

2021

Park, Won Young, Nihar Shah, Edward L. Vine, Patrick Blake, Brian Holuj, James Hyungkwan Kim, and Dae Hoon Kim. "Ensuring the climate benefits of the Montreal Protocol: Global governance architecture for cooling efficiency and alternative refrigerants." Energy Research & Social Science Volume 76 (2021).

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   PDF (2.15 MB)
Shah, Nihar, EE Task Force, and UNEP TEAP. Montreal protocol on substances that deplete the ozone layer report of the technology and economic assesment panel volume 4: decision XXXI/7 - continued provision of information on energy-efficient and low-global-warming-potential technologies.. Nairobi, Kenya: United Nations Environment Programme, 2021.

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   PDF (3.34 MB)
Shah, Nihar, Won Young Park, and Chao Ding. "Trends in best-in-class energy-efficient technologies for room air conditioners." Energy Reports 7 (2021): 3162-3170.

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   1-s2.0-s2352484721002948-main.pdf (1.66 MB)

2020

Dreyfus, G, N. Borgford-Parnell, J. Christensen, D.W. Fahey, B. Motherway, T. Peters, R. Picolotti, Nihar Shah, Y. Xu, M. Molina et al. Assessment of Climate and Development Benefits of Efficient and Climate-Friendly Cooling., 2020.

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Purohit, Pallav, Lena Höglund-Isaksson, John Dulac, Nihar Shah, Max Wei, Peter Rafaj, and Wolfgang Schöpp. "Electricity savings and greenhouse gas emission reductions from global phase-down of hydrofluorocarbons." Atmospheric Chemistry and Physics 20, no. 19 (2020): 11305-11327.

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Karali, Nihan, Chao Ding, Won Young Park, Nihar Shah, and Jiang Lin. Energy-Efficiency Improvement Potential of Multi-split Air Conditioning Systems in China., 2020.

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Karali, Nihan, Nihar Shah, Won Young Park, Nina Khanna, Chao Ding, Jiang Lin, and Nan Zhou. "Improving the energy efficiency of room air conditioners in China: Costs and benefits." Applied Energy 258 (2020): 114023.

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   PDF (1.29 MB)
Shah, Nihar, EE Task Force, and UNEP TEAP. Montreal Protocol on Substances that Deplete the Ozone Layer, Report of the Technology and Economic Assessment Panel, Volume 2 Decision XXXI/7 - Continued Provision of Information on Energy-Efficient and Low Global Warming Potential Technologies In UNEP Report of the Technology and Economic Assessment Pane. United Nations Environment Programme, 2020.

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   PDF (3.11 MB)

2019

Shah, Nihar, Max Wei, Virginie E. Letschert, and Amol A. Phadke. Benefits of Energy Efficient and Low-Global Warming Potential Refrigerant Cooling Equipment., 2019.

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   PDF (2.06 MB)
Park, Won Young, Nihar Shah, Chao Ding, and Yi Qu. Challenges and Recommended Policies for Simultaneous Global Implementation of Low-GWP Refrigerants and High Efficiency in Room Air Conditioners. Berkeley, CA: Lawrence Berkeley National Laboratory, 2019.

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Park, Won Young, Nihar Shah, and Amol A. Phadke. "Enabling access to household refrigeration services through cost reductions from energy efficiency improvements." Energy Efficiency (2019).

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   PDF (2.5 MB)
Khanna, Nina, Chao Ding, Won Young Park, Nihar Shah, and Jiang Lin. Market Assessment of Multi-split Air Conditioning Systems in the Chinese and Global Market., 2019.

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   PDF (1.01 MB)
Park, Won Young, Nihar Shah, Brian Holuj, Noah Horowitz, and Alex Hillbrand. Model Regulation Guidelines for Energy-Efficient and Climate-Friendly Air Conditioners. Paris: UN Environment, 2019.

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   PDF (1.02 MB)   Supporting Information (1.99 MB)
Shah, Nihar, EE Task Force, and UNEP TEAP. Montreal Protocol on Substances that Deplete the Ozone Layer, Volume 3: Decision XXX/5 Task Force Final Report on Cost and Availability of Low-GWP Technologies/Equipment that Maintain/Enhance Energy Efficiency In UNEP Report of the Technology and Economic Assessment Panel. Vol. 3. Nairobi, Kenya: United Nations Environment Programme, 2019.

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   PDF (1.83 MB)
Shah, Nihar, EE Task Force, and UNEP TEAP. Montreal Protocol on Substances that Deplete the Ozone Layer, Volume 4: Decision XXX/3 Task Force Report on Cost and Availability of Low-GWP Technologies/Equipment that Maintain/Enhance Energy Efficiency (Advance Copy) In UNEP Report of the Technology and Economic Assessment Panel. Vol. 4. Nairobi, Kenya: United Nations Environment Programme, 2019.

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   PDF (3.27 MB)

2018

Shah, Nihar, EE Task Force, and UNEP TEAP. Decision XXIX/10 Task Force Report on Issues Related to Energy Efficiency While Phasing Down Hydrofluorocarbons In UNEP Report of the Technology and Economic Assessment Panel. Vol. 5. Nairobi, Kenya: United National Environment Programme, 2018.

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Shah, Nihar, Scientific Assessment Panel, and et al.. Scientific Assessment of Ozone Depletion: 2018 - Report and Executive Summary In Global Ozone Research and Monitoring Project. World Meteorological Organization, 2018.

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   Executive Summary (4.39 MB)

2017

Shah, Nihar, Stephane de la Rue du Can, Dietram Oppelt, Ana Maria Carreno, Nicole Kearney, and et al.. Accelerating the Global Adoption of Energy-Efficient and Climate-Friendly Air Conditioners In U4E Policy Guide Series. Paris, France: UN Environment, (U4E) Economy Division Energy, Climate, and Technology Branch, 2017.
Park, Won Young, Nihar Shah, and Brian F. Gerke. Assessment of commercially available energy-efficient room air conditioners including models with low global warming potential (GWP) refrigerants. Berkeley, CA: Lawrence Berkeley National Lab, 2017.

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   PDF (2.18 MB)   Presentation (1.41 MB)
Shah, Nihar, Nina Khanna, Nihan Karali, Won Young Park, Yi Qu, and Nan Zhou. Opportunities for Simultaneous Efficiency Improvement and Refrigerant Transition in Air Conditioning., 2017.

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   Report PDF (3.51 MB)   Presentation PDF (789.73 KB)

2016

Shah, Nihar, Nikit Abhyankar, Won Young Park, Amol A. Phadke, Saurabh Diddi, Deepanshu Ahuja, P.K. Mukherjee, and Archana Walia. Cost-Benefit of Improving the Efficiency of Room Air Conditioners (Inverter and Fixed Speed) in India., 2016.

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   PDF (885.61 KB)   PPT (777.89 KB)

2015

Shah, Nihar, Max Wei, Virginie E. Letschert, and Amol A. Phadke. Benefits of Leapfrogging to Superefficiency and Low Global Warming Potential Refrigerants in Room Air Conditioning., 2015.

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   PDF (1.61 MB)   PDF Presentation (1.54 MB)
Shah, Nihar, Nikit Abhyankar, Amol A. Phadke, and Girish Ghatikar. "Considerations in Standardization for Demand Response Ready Air Conditioners in India." In India Smart Grid Week 2015. Bangalore, India, 2015.

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   PDF (406.21 KB)   PPT (3.99 MB)