Tim Theiss

Tim has been on the staff at Oak Ridge National Laboratory (ORNL) since 1987 as a research development staff member, a program manager, and a group leader. He has over 20 years of experience in program development and program management at ORNL in various technical areas, primarily related to bioenergy and biofuels, power systems, and reciprocating engine-based power generation.

Since October 2011, Tim has been serving as the laboratory relationship manager or program manager for the U.S. Department of Energy (DOE) Office of Energy Efficiency and Renewable Energy’s Bioenergy Technologies Office. This applied bioenergy program includes research on feedstock supply and logistics, biomass conversion technologies, and the strategic analysis and sustainability of bioenergy.

From 2008 to 2012, Tim led ORNL’s Fuels and Engines Research Group, one of the larger comprehensive internal combustion engine research and development groups in the DOE system. He has a master’s degree in engineering mechanics from Virginia Tech and a bachelor’s degree in engineering science and mechanics from Tennessee Tech.

Meet our other bloggers ►
Return to Bioprose blog ►

Contributed Content

Displaying 1 - 4 of 4

Computational Modeling Scales Renewable Chemical Process 1,000x in a Single Step

Scientists from ORNL, Pyran, and RPD Technologies pose in front of the pilot-scale reactor testbed. Photo courtesy of ORNL.

Startup firm Pyran recently took a huge leap forward in the development of its technology to make renewable industrial chemicals, achieving an extraordinary 1,000-times scaleup of its reactor in a single step.

Anchors Aweigh: Examining Biofuels for Maritime Shipping

Scientist placing a mechanism into one of three clear jars.

A multi-lab team of scientists led by ORNL studies the feasibility of using biofuels to meet new emissions regulations for cargo ships

Scientists Develop Plant-Based Materials to Grow Nation’s Bioeconomy

Bioprose Blog: ORNL scientists researched the complexities of lignin structure to develop new bioadvantaged materials.

One Fish Model Study Leads to Three Wins for the Environment

A drawn photo of a fish leaping out of a small pond, with trees in the background.

Bioprose Blog: PNNL, ORNL, & USFS have been modeling to understand the costs and benefits of thinning forests and the potential for improving habitat.