Research Staff

Photo of Achilles Karagiozis

Achilles Karagiozis

Building Technologies and Science Center Director

Achilles Karagiozis is the director of NREL’s Building Technologies and Science Center. He manages a multidisciplinary team of approximately 150 researchers within the laboratory’s buildings, concentrating solar power, and geothermal technologies groups.

Photo of Roderick Jackson

Roderick Jackson

Laboratory Program Manager - Building Technologies R&D

Roderick Jackson is NREL's laboratory program manager for buildings research. He works with senior laboratory management to set the strategic agenda for the buildings portfolio, including research, development, and market implementation activities that improve the energy efficiency of building materials and practices.

Bruno Grunau

Bruno Grunau

Regional Director ARCEE-Sustainable Buildings

Bruno Grunau is regional director of NREL's Cold Climate Housing Research Center in Fairbanks, Alaska. He oversees the center's work in building science, energy policy, and demonstration of healthy, affordable, durable shelter and infrastructure in extreme environments.

Photo of David Roberts

Dave Roberts

Manager, Residential Buildings Research Group

Dave Roberts leads a group of talented engineers and scientists leveraging computer modeling, lab experimentation, and field validation to conduct research and develop innovations furthering residential building energy efficiency.

Photo of Judith Vidal

Judith Vidal

Group Manager, Building Energy Science

Judith Vidal has established an international reputation for cutting-edge work on molten salts. She is a joint faculty member at the Colorado School of Mines and has diversified expertise and capabilities in technologies such as water splitting electrolysis, fuel cells, thermoelectrics, and biofuels.

Photo of Michael Deru

Michael Deru

Group Manager, Advanced Buildings Equipment Research

Michael Deru manages the Systems Performance section of NREL's Commercial Buildings Research Group. He leads projects on the development and testing of novel HVAC systems, building performance simulations, performance metrics for sustainability, source energy and emissions factors, water, and the U.S. Life Cycle Inventory Database.

Stacey Rothgeb

Stacey Rothgeb

Manager | Residential Buildings Solutions and Scaling

Stacey Rothgeb leads a group of talented engineers and professionals focused on residential system integration solutions and scaling, working closely with industry on analysis, market transformation, and workforce development.

Photo of Marcus Bianchi

Marcus Bianchi

Acting Group Manager, Commercial Buildings

Marcus is a senior research engineer with the Building Energy Science Group. He is a thermal energy expert and employs his background to conduct research in thermal sciences modeling, analysis, and testing of advanced building envelope components and systems to improve the energy performance of buildings.

Photo of Kim Trenbath

Kim Trenbath

Acting Group Manager, Communities and Urban Science

Dr. Kim Trenbath is the innovation lead for systems technology research and development in the Building Technologies and Science Center at the National Renewable Energy Laboratory (NREL).

Name Position Email Phone
Adhikari, Rajendra Researcher III-Software Development 303-275-3955
Allen, Amy Researcher III-Mechanical Engineering 303-275-4271
Ball, Brian Engineering 303-275-4569
Benne, Kyle Researcher V-Software Engineering 303-275-4603
Bernal Heredia, Willy Electrical and Mechanical Engineer 303-384-7404
Bianchi, Carlo Researcher III-Mechanical Engineering 303-275-3648
Bianchi, Marcus Acting Group Manager, Commercial Buildings 303-384-6756
Blair, Aileen Project Manager III-Research Support 303-384-7364
Bonnema, Eric Researcher IV-Mechanical Engineering 303-384-6185
Booten, Chuck Senior Engineer 303-275-3167
Bowyer, Chris Project Manager III-Research 303-275-4844
Brossman, Jes Researcher II-Mechanical Engineering 303-384-7141
Bulk, Alex Researcher III-Mechanical Engineering 303-384-6358
Burkett, Lena Building Science Research Engineer 202-488-2232
CaraDonna, Christopher Researcher III-Mechanical Engineering 303-275-4535
Charan, Tanushree Researcher III-Mechanical Engineering 303-384-7249
Charoonsophonsak, Chan Researcher I ARCEE-Building Science 907-615-6262
Chinde, Venkatesh Researcher III-Mechanical Engineering 303-275-4825
Chintala, Rohit Researcher III-Electrical Engineering 303-275-4286
Chlupp, Thorsten Project Manager III ARCEE-Research 907-615-6263
Christensen, Dane Manager - Cybersecurity System Analysis Group 303-384-7437
Cindrich, Nick Researcher II-Mechanical Engineering 303-275-4947
Coakley, Milena Research Technician II ARCEE-Building Science 907-615-6264
Coleman, Tim Researcher IV-Cyber Security & Resilience 303-275-3743
Cooke, Aaron Project Manager III ARCEE-Research 907-615-6265
Cu, Khanh Nguyen Researcher II-Mechanical Engineering 303-384-7156
Dahlhausen, Matthew Researcher III-Mechanical Engineering 303-384-7543
Dennehy, Conor Researcher III ARCEE-Building Science 907-615-6267
Deru, Michael Group Manager, Advanced Buildings Equipment Research 303-384-7503
Dombrovski, Kelsea Researcher III - Community Energy Researcher 303-275-4362
Earle, Lieko Senior Research Engineer 303-275-4355
El Kontar, Rawad Researcher III-Mechanical Engineering 303-275-3705
Faramarzi, Ramin Researcher V-Mechanical Engineering 303-384-7330
Field-Macumber, Kristin Researcher III-Mechanical Engineering 303-384-7376
Fleming, Katherine Researcher V-Software Engineering 303-275-4331
Fontanini, Anthony Researcher IV-Model Engineering 303-275-3286
Frank, Steve Instrumentation & Controls Engineer 303-275-4249
Garber-Slaght, Robbin Researcher IV ARCEE-Building Science 907-615-6270
Georgeson, Allison Professional II-Project Controller 303-630-5260
Goetsch, Heather Researcher III-Mechanical Engineering 303-275-4708
Goldwasser, David Researcher IV-Software Engineering 303-275-3785
Grunau, Bruno Regional Director ARCEE-Sustainable Buildings 907-615-6273
Harris, Chioke Researcher IV-Model Engineering 303-275-3904
Hebert, John Research Advisor I ARCEE NEX 907-615-6274
Henze, Gregor Contingent Worker 303-384-6408
Horowitz, Scott Senior Research Engineer 303-384-7560
Horsey, Ry Researcher III-Software Engineering 303-275-4919
Houssainy, Sammy Researcher III-Mechanical Engineering 720-602-5875
Huang, Ransisi Researcher III-Mechanical Engineering 303-384-6552
Jackson, Roderick Laboratory Program Manager - Building Technologies R&D 303-275-4809
James, Nelson Researcher III-Mechanical Engineering
Jewett, Christian Researcher III-Mechanical Engineering 303-384-7467
Jin, Xin Researcher V-Control Engineering 303-275-4360
Karagiozis, Achilles Building Technologies and Science Center Director 303-384-7521
Kaufman, Zoe Buildings Research Engineer 303-384-7636
Kim, Janghyun Researcher III-Mechanical Engineering 303-384-7459
Kishore, Ravi Researcher III-Mechanical Engineering 303-384-7538
Kochevar, Emily Professional II-Project Controller 303-384-6633
Kozubal, Eric Sr. Mechanical Engineer 303-384-6155
Langner, Rois Researcher V-Mechanical Engineering 719-648-4597
Lantonio, Nicole Researcher III-Mechanical Engineering 303-384-6355
Leach, Matt Researcher IV-Mechanical Engineering 303-384-7987
Lee, Edwin Researcher IV-Mechanical Engineering 303-275-3110
Ling, Jiazhen Researcher IV-Mechanical Engineering 303-630-5343
Liu, Lixi Researcher III-Mechanical Engineering 303-384-7230
Livingood, Bill Laboratory Program Manager I-Partnership Development 303-384-7490
Long, Nicholas Researcher V-Software Engineering 303-384-6183
Lou, Yingli Researcher III-Model Engineering 303-630-5041
Maguire, Jeff Researcher IV-Model Engineering 303-275-4309
Marsik, Tom Research Advisor I ARCEE NEX 907-450-1785
Marzullo, Thibault Researcher III-Mechanical Engineering 303-275-3237
Mayernik, Jack Project Manager IV-Research Support 202-488-2209
Merket, Noel Researcher IV-Model Engineering 303-275-3156
Meyer, Paul Researcher III-Chemistry 303-275-4770
Mitchell, Matt Researcher III-Model Engineering 303-384-6845
Moe, Allison Project Manager III-Research 303-630-2372
Moore, Nathan Research Engineer 303-275-3072
Munankarmi, Prateek Researcher III-Electrical Engineering 303-275-4359
Munk, Jeff Researcher V-Mechanical Engineering 907-615-6280
Muthumanickam, Naveen Kumar Researcher III-Mechanical Engineering 303-630-5423
Nam, Dareum Researcher III-Software Engineering 303-630-2457
Odukomaiya, Wale Researcher IV-Mechanical Engineering 303-630-2420
Park, Ben Building Science Research Engineer 303-275-3285
Parker, Andrew Researcher V-Mechanical Engineering 303-275-4568
Petersen, Anya Senior Software Engineer 303-275-4598
Phillips, Lucas WPC Integrator 303-384-6482
Pless, Shanti Researcher V-Mechanical Engineering 303-384-6365
Polly, Ben Senior Research Engineer 303-384-7429
Praprost, Marlena Researcher III-Mechanical Engineering 303-275-3909
Present, Elaina Researcher III-Mechanical Engineering 303-275-4324
Ramaraj, Sugirdhalakshmi Researcher III-Mechanical Engineering 303-384-7764
Rettig, Molly Communications Lead 907-615-6282
Reyna, Janet Researcher IV-Mechanical Engineering 303-275-3218
Rippy, Kerry Researcher III-Chemistry 303-275-4166
Roberts, Dave Manager, Residential Buildings Research Group 303-384-7496
Robertson, Joe Research Engineer 303-275-4575
Romero, Rachel Senior Engineer and Project Lead 303-275-3908
Rothgeb, Stacey Manager | Residential Buildings Solutions and Scaling 303-275-4361
Ryan, Taylor Project Manager II-Research 303-384-6481
Schott, Marjorie Project Manager II NEX-Research 303-275-3913
Shoukas, Greg Researcher III-Mechanical Engineering 303-384-6690
Shrestha, Prateek Research Engineer 303-275-3861
Sparn, Bethany Senior Research Engineer 303-384-7442
Speake, Andrew Buildings Researcher - Software Engineering 303-275-3253
Sprik, Sam Researcher V-Mechanical Engineering 303-275-4431
Steen, Matt Researcher III-Software Engineering 303-384-6486
Stenger, Katelyn Researcher III-Mechanical Engineering 303-630-5521
Stevens, Vanessa Project Manager III ARCEE-Research 907-615-6283
Stout, Sherry Laboratory Program Manager I-Policy Analysis 303-275-4281
Studer, Danny Program Manager IV-Research Support 303-275-4368
Sullivan, Julia Researcher III-Civil Engineering 303-630-5357
Swindler, Alex Researcher IV-Software Engineering 303-275-3265
Torcellini, Paul Principal Engineer 303-384-7528
Trenbath, Kim Acting Group Manager, Communities and Urban Science 303-275-3710
Truitt, Sarah Project Manager V-Research 303-275-4684
Tuttle, Robin Project Manager III-Research 303-384-6958
Van Dyke, Barbara Business Support II-Administrative Associate 303-384-7440
Van Sant, Amy Researcher II-Mechanical Engineering 303-384-6806
Vidal, Judith Group Manager, Building Energy Science 303-275-4290
Wang, Jing Researcher III-Mechanical Engineering 303-384-7810
Wheeler, Grant Researcher IV-Mechanical Engineering 303-275-4577
White, Philip Researcher III-Mechanical Engineering 303-630-5435
Wijesuriya, Sajith Postdoctoral Researcher-Mechanical Engineering 303-630-5493
Wilson, Eric Senior Research Engineer 303-275-4676
Wiltse, Nathan Group Manager I ARCEE-Research 907-615-6288
Winkler, Jon Senior Buildings Researcher 303-275-4356
Woldekidan, Korbaga Researcher IV-Data Science 303-275-4310
Woods, Jason Researcher V-Mechanical Engineering 303-384-6189
Xiong, Jie Researcher III-Mechanical Engineering 303-275-3924
Zeng, Yi Postdoctoral Researcher-Mechanical Engineering 303-275-4033
Zhou, Yueyue Researcher II-Mechanical Engineering 303-384-7510