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Energy and Environment Directorate

Joshua McIntosh

Joshua McIntosh

Pacific Northwest National Laboratory
PO Box 999
Richland, WA 99352
(509) 375-4484


Mr. McIntosh joined PNNL as an Intern in May of 2016 in support of the PNNL's Solid State Lighting Advanced Lighting Research & Development Program and the PNNL Energy Efficient Lab Homes Program. He quickly became very interested in LED product controls, testing and component assemblies as well as residential energy efficient technologies performance assessment. He is proficient with a wide range of data acquisition and control systems and enjoys hands-on, in-field\lab test work. He is experienced with 3D printing, Solidworks modelling, sensor control and electrical power monitoring as well as data analysis via R and Excel.

Since December 2016, Mr. McIntosh has been an Associate Mechanical Test Engineer at PNNL. He primarily provides technical expertise, leadership and support to the research being performed in PNNL's Lighting Metrology Laboratory and the PNNL Energy Efficient Lab Homes Test Facility. Mr. McIntosh is the test engineer responsible for setting up and conducting a wide range of research that has included a wide range of performance assessments in the advanced lighting, heat pump water heater, non-Intrusive load monitoring, cellular shades and connected homes research areas.

Research Interests

  • Lighting Energy Efficiency and Sustainability
  • Field\Lab Based Performance Testing, Research and Analysis
  • 3D modelling and Printing
  • Integrated Building Control and Power Monitoring systems
  • Building Efficiency, Evaluation and Energy Analysis
  • Energy Efficiency Technology Analysis & Performance Assessment

Education and Credentials

  • B.S., Mechanical Engineering, Washington State University – 2016
  • M.S., Mechanical Engineering, Washington State University – (In Progress - anticipated completion 2020)

PNNL Publications


  • Cort K.A., J.A. McIntosh, G. Sullivan, T.D. Ashley, C.E. Metzger, and N. Fernandez. 2018. Testing the Performance and Dynamic Control of Energy-Efficient Cellular Shades in the PNNL Lab Homes. PNNL-27663 Rev 1. Richland, WA: Pacific Northwest National Laboratory.


  • Widder S.H., C.E. Metzger, J.M. Petersen, and J.A. McIntosh. 2017. Interaction between Heat Pump Water Heaters or Other Internal Point Source Loads and a Central Heating System. PNNL-26447. Richland, WA: Pacific Northwest National Laboratory.

Energy and Environment

Core Research Areas