Mechanical and Thermal Engineering Sciences
The Mechanical and Thermal Engineering Sciences (MTES) directorate at NREL drives technological innovation in the areas of energy efficiency, sustainable transportation, and renewable power.
We provide engineering and scientific expertise to a variety of federal agencies, including the Department of Energy Office of Energy Efficiency and Renewable Energy, Office of Science, and ARPA-E as well university and industry partners. The directorate is led by Associate Laboratory Director Dr. Johney Green Jr.

Identifying and developing advanced materials and processes that drive the impact of new energy technologies

Increasing energy efficiencies in residential and commercial buildings that save money and add stability to the grid

Innovative buildings design, research, and deployment in extreme and rural environments

Advancing innovative technologies that capture sunlight and store heat to provide electricity on demand 24/7

Accelerating widespread adoption of high-performance, low-emission, energy-efficient vehicles