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Energy and Environment Directorate

Mark Weimar

Mark Weimar

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 372-4906


Dr. Weimar, Chief Economist at Pacific Northwest National Laboratory, has over 40 years of experience in economics. He has been at the laboratory since 1993. Dr. Weimar has developed program and project-specific economics and financial analyses for a number of public agencies, primarily for the United States Department of Energy (DOE), California Energy Commission, ISO New England, US Department of Defense (DoD), Federal Highway Administration (FHWA), Montana Department of Transportation, Internal Revenue Service (IRS), United States Department of Homeland Security, United States Department of Transportation (US DOT), National Cooperative Highway Research Program (NCHRP), and the California Energy Commission.

His professional career includes a broad range of experience from agricultural policy to energy policy using the modeling of systems. He has worked on a variety of projects associated with nuclear power, wind power, solar PV, solar thermal, geothermal, landfill gas, biomass, hydrogen, and fossil fuel. I have also worked on valuing frequency regulation services for the California ISO and the New England ISO. I have also used economics to track and identify tax avoidance perpetrators. In addition, I have worked programs associated with detecting weapons of mass destruction, and cyber security.

Currently he is working on valuing resilience in the face of increasing severe weather for the Federal Energy Management Program, Building Technology Office, Office of Electricity and the Solar Energy Technology Office, valuing pumped storage hydro, evaluating the financial feasibility of geothermal electricity, costing and valuing small modular nuclear reactors, streamlining the Defense Logistics Agency’s procurement processes, costing and valuing marine energy projects and evaluating rare metal extraction from seawater.

Research Interests

  • Econometric Modeling
  • Financial Modeling
  • Market Assessment
  • Cost Benefit Analysis
  • Return on Investment
  • Chemical and Biological Weapons Non-proliferation
  • Signature Development and Visualization

Education and Credentials

  • B.S., Agricultural and Resource Economics, Oregon State University
  • Ph.D., Iowa State University, Department of Economics

PNNL Publications


  • Balducci P.J., M.R. Weimar, X. Ma, D. Wu, J. Kwon, A. Schliefer, and V. Koritarov, et al. 2023. "New Tool Evaluates the Financial Viability of Pumped Storage Hydropower." IEEE Power & Energy Magazine 21, no. 6:98-109. PNNL-SA-189844. doi:10.1109/MPE.2023.3308240



  • Balducci P.J., K. Mongird, and M.R. Weimar. 2021. "Understanding the value of energy storage for power system reliability and resilience applications." Current Sustainable/Renewable Energy Reports 8, no. 3:131 - 137. PNNL-SA-159847. doi:10.1007/s40518-021-00183-7


  • Bender S.R., J.M. Niemeyer, M.R. Weimar, and T.D. Hardy. 2019. "Considerations for Commercial Building Participation in a Transactive Energy System." In IEEE Power & Energy Society Innovative Smart Grid Technologies Conference (ISGT 2019), February 18-21, 2019, Washington DC. Piscataway, New Jersey:IEEE. PNNL-SA-137666. doi:10.1109/ISGT.2019.8791602


  • Weimar M.R., A. Somani, P.V. Etingov, L.E. Miller, Y.V. Makarov, C. Loutan, and W. Katzenstein. 2018. "Benefit Cost Analysis of Improved Forecasting for Day-Ahead Hourly Regulation Requirements." In IEEE Power & Energy Society General Meeting (PESGM 2018), August 5-10, 2018, Portland, OR, 1-5. Piscataway, New Jersey:IEEE. PNNL-SA-130142. doi:10.1109/PESGM.2018.8586106


  • Balducci P.J., M.E. Alam, V.V. Viswanathan, D. Wu, A.J. Crawford, K. Mongird, and M.R. Weimar, et al. 2017. "An Economic Assessment of Portland General Electric's Salem Smart Power Center Energy Storage System." In Electrical Energy Storage Applications and Technologies (EESAT 2017), October 11-13, 2017, San Diego, CA. Albuquerque, New Mexico:Sandia National Laboratories. PNNL-SA-129062.
  • Balducci P.J., M.E. Alam, V.V. Viswanathan, D. Wu, A.J. Crawford, K. Mongird, and M.R. Weimar, et al. 2017. The Salem Smart Power Center: An Assessment of Battery Performance and Economic Potential. PNNL-26858. Richland, WA: Pacific Northwest National Laboratory. doi:10.2172/1406263.The Salem Smart Power Center: An Assessment of Battery Performance and Economic Potential


  • Chick L.A., M.R. Weimar, G.A. Whyatt, and M.R. Powell. 2015. "The Case for Natural Gas Fueled Solid Oxide Fuel Cell Power Systems for Distributed Generation." Fuel Cells 15, no. 1:49-60. PNNL-SA-98735. doi:10.1002/fuce.201400103


  • Brooks K.P., K.L. Simmons, and M.R. Weimar. 2014. "Systems Engineering of Chemical Hydrogen Storage, Pressure Vessel and Balance of Plant for Onboard Hydrogen Storage." In 2014 Progress Report for the DOE Hydrogen and Fuel Cells Program. 30-35. Washington Dc:U.S. Department of Energy. PNNL-23498.


  • Lu N., M.R. Weimar, Y.V. Makarov, and C. Loutan. 2011. "An Evaluation of the NaS Battery Storage Potential for Providing Regulation Service in California." In IEEE/PES Power Systems Conference & Exhibition (PSCE 2011), March 20-23, 2011, Phoenix, Arizona. Piscataway, New Jersey:Institute of Eletrical and Electronics Engineers. PNNL-SA-75415. doi:10.1109/PSCE.2011.5772494


  • Kreyling S.J., A.J. Brothers, S.M. Short, J.R. Phillips, and M.R. Weimar. 2010. "AN ANALYTICAL FRAMEWORK FOR ASSESSING RELIABLE NUCLEAR FUEL SERVICE APPROACHES: ECONOMIC AND NON-PROLIFERATION MERITS OF NUCLEAR FUEL LEASING." In Proceedings of the 51st Annual Meeting of the Institute of Nuclear Materials Management, July 11-15, 2010, Baltimore, Maryland. Deerfield, Illinois:INMM. PNNL-SA-73364.
  • Lu N., M.R. Weimar, Y.V. Makarov, F. Rudolph, S. Murthy, J. Arseneaux, and C. Loutan. 2010. "An Evaluation of the Flywheel Potential for Providing Regulation Service in California." In 2010 IEEE Power and Energy Society General Meeting. Piscataway, New Jersey:Institute of Electrical and Electronics Engineers. PNNL-SA-69780. doi:10.1109/PES.2010.5590114
  • Phillips J.R., S.J. Kreyling, S.M. Short, and M.R. Weimar. 2010. "Economic and Nonproliferation Analysis Framework for Assessing Reliable Nuclear Fuel Service Arrangements." In Pacific Northwest International Conference (PNIC) on Global Nuclear Security -- the Decade Ahead, April 11-16, 2010, Portland, OR. Deerfield, Illinois:Institute of Nuclear Materials Management. PNNL-SA-72040.
  • Weimar M.R., D.S. Daly, and T.W. Wood. 2010. "Using Economic Input/Output Tables to Predict a Country's Nuclear Status." In Proceedings of the 51st Annual Meeting of the Institute of Nuclear Materials Management, July 11-15, 2010, Baltimore, Maryland. Deerfield, Illinois:INMM. PNNL-SA-73279.


  • Short S.M., M.R. Weimar, S.J. Kreyling, Z.N. Gastelum, J.R. Phillips, and T.W. Wood. 2009. "NUCLEAR FUEL LEASING - AN ASSESSMENT OF ECONOMIC AND NONPROLIFERATION BENEFITS." In Global 2009: The Nuclear Fuel Cycle: Sustainable Options and Industrial Perspectives, September 6-11, 2009, Paris, France, INIS-FR--09-1167, Paper No. 9350. Vienna:IAEA. PNNL-SA-65277.


  • Solana A.E., J.C. States, W.D. Chvala, M.R. Weimar, and D.R. Dixon. 2008. "Renewable Energy Opportunities for the Army." In Proceedings of the World Energy Engineering Congress. Lilburn, Georgia:Farmont Press Inc. PNNL-SA-61859.


  • Wood T.W., B.A. Reichmuth, M.R. Weimar, R.F. O'Brien, and M.D. Milazzo. 2007. "Identification of High Risk Intermediaries in Global Networks Transferring Sensitive Technology and Information." In Addressing Verification Challenges: Proceeding of an International Safeguards Symposium on Addressing Verification Challenges, October 16-20, 2006, Vienna, Austria, 41-46. Vienna:International Atomic Energy Agency. PNNL-SA-51706.


  • Weimar M.R., T.W. Wood, B.A. Reichmuth, and W.L. Johnson. 2004. "Using A High-Temperature Hydrogen Co-Generation Reactor To Optimize Both Economic and Environmental Performance." In Proceedings of 15th Annual U.S. Hydrogen Conference and Hydrogen Expo USA, 123-139. Washington, Dc:National Hydrogen Association. PNNL-SA-41460.
  • Whitney P.D., M.R. Weimar, and A.J. Calapristi. 2004. "Exploratory Analysis of Transaction Data." In Proceedings of MLMTA'04 - The 2004 International Conference on Machine Learning; Models, Technologies and Applications, Volume 2, 973-976. Bogart, Georgia:CSREA Press. PNNL-SA-40960.


  • Balducci P.J., J.M. Roop, L.A. Schienbein, J.G. DeSteese, and M.R. Weimar. 2003. "Electric Power Interruption Cost Estimates for Individual Industries, Sectors and the U.S. Economy." In Proceedings of 25th National Industrial Energy Technology Conference, 109-118. Houston, Tx:Texas A&M. PNNL-SA-37958.
  • Weimar M.R., T.W. Wood, B.A. Reichmuth, and W.L. Johnson. 2003. "Optimizing a High-Temperature Hydrogen Co-generation Reactor for Both Economic and Environmental Performance." In Global 2003: Atoms for Prosperity: Updating Eisenhowers Global Vision for Nuclear Energy, November 16-20, 2003, New Orleans, LA, United States, 1499-1508. La Grange Park, Illinois:American Nuclear Society. PNNL-SA-39404.


  • Jaksch J.A., M.R. Weimar, J.K. Young, W.J. Taylor, P.T. Furlong, R.D. Feldman, and R. Diprinzio. 2001. "Privatization: The Use of Risk, Economic and Finance Models to Ensure Its Success." The Journal of Structured Finanace 6, no. 4:37-48. PNNL-SA-33995.

Energy and Environment

Core Research Areas