Federal News
DOE Awards ClearSign $1.65M SBIR for Low-NOx Burner
March 12, 2026
ClearSign Technologies Corporation has completed successful Department of Energy (DOE) testing of its ClearSign Core 2 flexible-fuel burner, achieving ultra-low NOx emissions below 5 ppm across multiple fuel blends including 100% hydrogen at an 8 million BTU/hr scale. This milestone was supported by a $1.65 million DOE Small Business Innovation Research (SBIR) Phase II award in 2026, administered through the National Energy Technology Laboratory (NETL). The technology enhances fuel flexibility and emissions compliance for industrial heating applications such as refineries and chemical plants, with commercial field installations planned.
- Why this matters: Procurement professionals should note DOE's continued investment in clean energy technologies that support decarbonization and regulatory compliance in industrial sectors.
- The award signals opportunities for contractors specializing in advanced burner technologies and emissions control systems.
- Organizations serving U.S. refineries and chemical plants may find increased demand for flexible-fuel combustion solutions that meet stringent environmental standards.
- Companies can leverage this development to align with federal clean energy initiatives and position for future DOE funding or procurement opportunities.
NETL's investment in ClearSign's technology is opening up significant operational advantages for the industry.
— Drew O'Connell, NETL federal project manager
We are very pleased to publicly report the success of this flexible fuel burner development project.
— Jim Deller, Ph.D., CEO of ClearSign
Agencies
U.S. Department of Energy, National Energy Technology Laboratory
Vendors
ClearSign Technologies Corporation
Contracts
$1.65 million
Locations
Sources
- ClearSign hits sub-5ppm NOx in DOE burner tests | CLIR Stock News · Stock Titan · Mar 11
- ClearSign Completes DOE Testing of Hydrogen-Capable Low-NOx Burner · Fuel Cells Works · Mar 12