CLIR News & Events

ClearSign Technologies announces that, in conjunction with the U.S. Department of Energy's National Energy Technology Laboratory, under its Small Business Innovation Research program, it has completed the testing of its ClearSign Core Flexible Fuel, 100% Hydrogen Capable process burner branded as ClearSign Core 2. "We are very pleased to publicly report the success of this flexible fuel burner development project," said Jim Deller, CEO. "We are thankful for the SBIR program funding that allowed us to develop and demonstrate a technology designed to meet the real-world needs of U.S. refineries and chemical processing facilities. This technology enables compliant and cost-effective use of fuels ranging from 100% hydrogen, the full gamut of petrochemical and refinery hydrocarbon fuel gas blends, and natural gas in industrial heating operations. We believe that these ultra-low NOx results and ease of use are unmatched by any other burner that we know of in the market." ClearSign's "Flexible Fuel Ultra-Low NOx Process Burner" project, which is nearing its scheduled completion and marking a significant 2.5-year effort, resolves this issue by facilitating fuel flexibility without compromising emissions compliance with the simple replacement of burner technology. This innovative technology allows industrial facilities to enhance operational flexibility, reduce costs associated with fuel procurement and regulatory emissions compliance, and reduce disruptions to operations - all of which may provide Americans with more affordable energy. The ClearSign Core burner, scaled to 8 million British thermal units per hour, has demonstrated consistent performance across a range of fuel compositions, including 100% hydrogen, natural gas and various intermediate blends. This technology has also achieved NOx emissions that are consistently below 5 parts per million across this entire range of fuel gas blends. This is accomplished through integrated features such as internally induced flue gas recirculation, fuel-lean premixing and a patented distal flameholder, all contained within a compact burner head designed for easy retrofitting into existing heater infrastructure.

ClearSign Technologies Corporation received an engineering order for a fifth low-emission retrofit flare burner and the other components of the enclosed system from an energy company for deployment in California.

"We are pleased to report preliminary record quarterly and full-year results," said Jim Deller, CEO. "Our fourth quarter performance was strengthened by the completion of a significant 26 burner order for installation at a U.S. Gulf Coast facility operated by a petrochemical company client. While we are encouraged by the successful completion of this large order, we are equally glad to see meaningful revenue contributions across multiple product lines and sales channels. Fourth quarter revenues also included testing, engineering, flares, and service work, underscoring the continued progression of ClearSign and the growing diversity of our solutions and product mix. As we enter 2026, we believe that our expanded portfolio of low-NOx burners, including our latest Department of Energy-tested, 100% hydrogen-capable flexible fuel process burners, and our new 'M' Series burner line, along with our advanced flares and flame sensors, strongly positions us in the market. As a result, we believe that, with the increase in traction in the industries we serve and the backlog and pipeline of orders we currently have, we are well-positioned to sustain or exceed this growth trajectory in 2026."