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Fundamental and Computational Sciences Directorate

Staff information


Meredydd Evans

Joint Global Chg Research Inst
Earth Scientist


Meredydd Evans is an energy policy and finance expert with over 20 years of international experience. She has worked on energy efficiency and clean energy policies and projects in numerous countries. She is a senior staff scientist at the Pacific Northwest National Laboratory, where she is managing a program on international sustainable energy, including efforts on building energy efficiency, policies and mechanisms to reduce short-lived forcers, and energy data for policy and clean energy investments, among others. Her work covers both global assessments as well as country-specific research in China, India, Vietnam, Russia and elsewhere. She began working at PNNL in 1994, and she was seconded to the International Energy Agency in Paris from 2002-2006. While at the IEA, she served as Acting Head of the Non-Member Country Division and she wrote two books on energy policy. Both works have been used by national governments in designing policies, laws and regulatory systems. Meredydd is fluent in five languages and has published numerous books and articles.

Education and Credentials

  • B.A. from Barnard College, Columbia University
  • M.S. from Harvard University

PNNL Publications


  • Dharmala N., N. Kholod, V. Chaturvedi, P. Ghosh, R. Mathur, S. Bali, and A. Behera, et al. 2022. "Win-Win Transportation Strategies for India: Linking Air Pollution and Climate Mitigation." Energy and Climate Change 3. PNNL-SA-167189. doi:10.1016/j.egycc.2022.100072
  • Durga S., M. Evans, L. Clarke, and R. Banerjee. 2022. "Developing New Pathways for Energy and Environmental Decision-making in India: a review." Environmental Research Letters 17, no. 6:Art. No. 63004. PNNL-SA-167233. doi:10.1088/1748-9326/ac6f13
  • Durga S., S.J. Smith, M. Evans, J. Sampedro Martinez de Estivariz, and S. Yu. 2022. Air Quality Analysis and Tools For Policy. PNNL-32558. Richland, WA: Pacific Northwest National Laboratory. Air Quality Analysis and Tools For Policy
  • Kholod N., C.P. Wejnert-Depue, M. Evans, and A.R. Mott. 2022. Policies to Decarbonize District Heating: International Best Practices. PNNL-32709. Richland, WA: Pacific Northwest National Laboratory. Policies to Decarbonize District Heating: International Best Practices
  • Mott A.R., A. Delgado, and M. Evans. 2022. "What, why, and when to go virtual: An international analysis of early adopters of virtual building energy codes inspections." Energy Research and Social Science 94. PNNL-SA-174900. doi:10.1016/j.erss.2022.102874
  • Pressburger L.D., M. Evans, S. Yu, Y. Cui, A. Somani, and G.C. Iyer. 2022. A Comprehensive Economic Coal Transition in South Asia. PNNL-32383. Richland, WA: Pacific Northwest National Laboratory. A Comprehensive Economic Coal Transition in South Asia



  • Kholod N., M. Evans, R. Pilcher, V. Roshchanka, F. Ruiz, M. Coté, and R. Collings. 2020. "Global methane emissions from coal mining to continue growing even with declining coal production." Journal of Cleaner Production 256. PNNL-SA-147476. doi:10.1016/j.jclepro.2020.120489
  • Zhou Y., M. Evans, S. Yu, X. Sun, and J. Wang. 2020. "Linkages between Policy and Business Innovation in the Development of China’s Energy Performance Contracting Market." Energy Policy 140. PNNL-SA-142724. doi:10.1016/j.enpol.2019.111208


  • Evans M., S. Yu, A.J. Staniszewski, L. Jin, and A. Denysenko. 2018. "The International Implications of National and Local Coordination on Building Energy Codes: Case Studies in Six Cities." Journal of Cleaner Production 191. PNNL-SA-127197. doi:10.1016/j.jclepro.2018.04.142
  • Paladugula A., N. Kholod, V. Chaturvedi, P. Ghosh, S. Pal, L.E. Clarke, and M. Evans, et al. 2018. "A Multi-Model Assessment of Energy and Emissions for India’s Transport Sector through 2050." Energy Policy 116. PNNL-SA-127815. doi:10.1016/j.enpol.2018.01.037
  • Srinivasan S., N. Kholod, V. Chaturvedi, P. Ghosh, R. Mathur, L.E. Clarke, and M. Evans, et al. 2018. "Water for Electricity in India: A Multi-Model Study of Future Challenges and Linkages to Climate Change Mitigation." Applied Energy 210. PNNL-SA-122615. doi:10.1016/j.apenergy.2017.04.079
  • Yu S., M. Evans, P. Kyle, L.D. Vu, Q. Tan, A. Gupta, and P.L. Patel. 2018. "Implementing Nationally Determined Contributions: Building Energy Policies in India’s Mitigation Strategy." Environmental Research Letters 13, no. 3:Article Number 034034. PNNL-SA-124403. doi:10.1088/1748-9326/aaad84


  • Evans M., N. Kholod, T. Kuklinski, A. Denysenko, S.J. Smith, A.J. Staniszewski, and W. Hao, et al. 2017. "Black carbon emissions in Russia: A critical review." Atmospheric Environment 163. PNNL-SA-120649. doi:10.1016/j.atmosenv.2017.05.026
  • Evans M., V. Roshchanka, and P. Graham. 2017. "An International Survey of Building Energy Codes and Their Implementation." Journal of Cleaner Production 158. PNNL-SA-118463. doi:10.1016/j.jclepro.2017.01.007
  • Liu B., M. Evans, S. Yu, V. Roshchanka, S. Dukkipati, and A. Sreenivas. 2017. "Effective Energy Data Management for Low-carbon Growth Planning: An Analytical Framework for Assessment." Energy Policy 107. PNNL-SA-119736. doi:10.1016/j.enpol.2017.03.059
  • Roshchanka V., M. Evans, F. Ruiz, and N. Kholod. 2017. "A Strategic Approach to Selecting Policy Mechanisms for Addressing Coal Mine Methane Emissions: A Case Study on Kazakhstan." Environmental Science & Policy 78. PNNL-SA-119429. doi:10.1016/j.envsci.2017.08.005
  • Yu S., Q. Tan, M. Evans, P. Kyle, L.D. Vu, and P.L. Patel. 2017. "Improving Building Energy Efficiency in India: State-level Analysis of Building Energy Efficiency Policies." Energy Policy 110. PNNL-SA-120611. doi:10.1016/j.enpol.2017.07.013


  • Kholod N., and M. Evans. 2016. "Reducing Black Carbon Emissions from Diesel Vehicles in Russia: An Assessment and Policy Recommendations." Environmental Science & Policy 56. PNWD-SA-10528. doi:10.1016/j.envsci.2015.10.017
  • Kholod N., M. Evans, and T. Kuklinski. 2016. "Russia’s black carbon emissions: focus on diesel sources." Atmospheric Chemistry and Physics 16, no. 17:11267-11281. PNNL-SA-118567. doi:10.5194/acp-16-11267-2016
  • Kholod N., M. Evans, and V. Roshchanka. 2016. Energy Efficiency as a Resource: Energy Efficiency’s Role in Meeting Ukraine’s Energy Needs. PNNL-24498 Final. Richland, WA: Pacific Northwest National Laboratory. Energy Efficiency as a Resource: Energy Efficiency’s Role in Meeting Ukraine’s Energy Needs
  • Kholod N., M. Evans, E. Gusev, S. Yu, V. Malyshev, S. Tretyakova, and A. Barinov. 2016. "A Methodology for Calculating Transport Emissions in Cities with Limited Traffic Data: Case Study of Diesel Particulates and Black Carbon Emissions in Murmansk." Science of the Total Environment 547. PNWD-SA-10525. doi:10.1016/j.scitotenv.2015.12.151
  • Roshchanka V., and M. Evans. 2016. "Scaling up the Energy Service Company (ESCO) Business: Market Status and Company Feedback in the Russian Federation." Journal of Cleaner Production 112, no. 5:3905-3914. PNNL-SA-103008. doi:10.1016/j.jclepro.2015.05.078


  • Evans M., N. Kholod, V. Malyshev, S. Tretyakova, E. Gusev, S. Yu, and A. Barinov. 2015. "Black carbon emissions from Russian diesel sources: Case study of Murmansk." Atmospheric Chemistry and Physics 15, no. 14:8349-8359. PNWD-SA-10408. doi:10.5194/acp-15-8349-2015
  • Kholod N., M. Evans, and V. Malyshev. 2015. "Minimizing the Black Carbon Emission of Mine Dump Trucks." Mining Industry 3, no. 121:72-76. PNWD-SA-10537.
  • Liu B., M. Evans, L.E. Clarke, S.T. Waldhoff, and S. Yu. 2015. Decarbonizing India’s Power Sector: Preliminary Synthesis of Project Results from the U.S.-India Model Intercomparison. PNNL-24736. Richland, WA: Pacific Northwest National Laboratory. Decarbonizing India’s Power Sector: Preliminary Synthesis of Project Results from the U.S.-India Model Intercomparison


  • Evans M., and V. Roshchanka. 2014. "Russian Policy on Methane Emissions in the Oil and Gas Sector: A Case Study in Opportunities and Challenges in Reducing Short-Lived Forcers." Atmospheric Environment 92. PNNL-SA-98619. doi:10.1016/j.atmosenv.2014.04.026
  • Evans M., S. Yu, B. Song, Q. Deng, J. Liu, and A. Delgado. 2014. "Building Energy Efficiency in Rural China." Energy Policy 64. PNNL-SA-95787. doi:10.1016/j.enpol.2013.06.040
  • Roshchanka V., and M. Evans. 2014. "Incentives for Methane Mitigation and Energy-Efficiency Improvements in Case of Ukraine’s Natural Gas Transmission System." Earth's Future 2, no. 6:321-330. PNNL-SA-98618. doi:10.1002/2013EF000204
  • Yu S., J. Eom, M. Evans, and L.E. Clarke. 2014. "A long-term, integrated impact assessment of alternative building energy code scenarios in China." Energy Policy 67. PNNL-SA-99677. doi:10.1016/j.enpol.2013.11.009
  • Yu S., J. Eom, Y. Zhou, M. Evans, and L.E. Clarke. 2014. "Scenarios of Building Energy Demand for China with a Detailed Regional Representation." Energy 67. PNNL-SA-99762. doi:10.1016/
  • Yu S., M. Evans, B. Guo, and J. Zhang. 2014. "Market Transformation for Urban Energy Efficiency in China." In China Environment Series, edited by JT Turner. 102-109. Washington, Dc:Woodrow Wilson International Center for Scholars. PNWD-SA-9432.


  • Evans M. 2009. "Natural Gas Regulation in Transition: The Effects of Geopolitics and Prerequisites for Change in Transition Economies." International Journal of Public Policy 4, no. Nos. 1/2:32-50. PNNL-SA-55742. doi:10.1504/IJPP.2009.021546
  • Evans M., B. Shui, and A. Delgado. 2009. "Comparison of International Building Energy Standards." In Energy Conservation Building Code User Guide. H1 - H4. New Delhi:Bureau of Energy Efficiency. PNNL-18314.


  • Caspery G., M. Evans, and L. Buxtorf. 2007. "Stabilising energy-related greenhouse gas emissions: Making “technology wedges” feasible." Renewable Energy 32, no. 5:713-726. PNNL-SA-55743.
  • Evans M. 2007. "Energy Prices, Tariffs, Taxes and Subsidies in Ukraine." Energy Prices and Taxes. PNNL-SA-55800.


  • Evans M., and H. Geller. 2002. "Energy Efficiency in the United States (L’éfficacité énergétique aux Etats-Unis)." Les Cahiers de Global Chance 16. PNNL-SA-37109.


  • Evans M. 2001. "Demand-side energy efficiency and the Kyoto mechanisms: Forging the link in countries in transition." In Further than ever from Kyoto? : Rethinking Energy Efficiency can get us there: Proceedings of the 2001 ECEEE Summer Study, Paper 6.126, 499-508. Paris:European Council for an Energy Efficient Economy. PNNL-SA-34476.


  • Evans M. 2000. "Tapping the Potential for Energy Efficiency: The Role of ESCOs in the Czech Republic, Ukraine and Russia." In 2000 ACEEE Summer Study on Energy Efficiency in Builidings Proceedings, Panel 5. Washington, Dc:The American Council for an Energy-Efficient Economy. PNNL-SA-34707.
  • Evans M., S.L. Legro, and I.M. Popov. 2000. "The Climate for Joint Implementation: Case Studies from Russia, Ukraine and Poland." Mitigation and Adaptation Strategies for Global Change 5, no. 4:319-336. PNNL-SA-33359.


  • Evans M. 1999. "Transportation in Transition Economies: a Key to Carbon Management." In eceee 1999 Summer Study, Energy efficiency and CO2 reduction: the dimensions of the social challengeFrance, Panel 5. Stocklholm:European Council on an Economic Economy. PNWD-SA-5391.

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