Thermal efficiency technology progress: Geely and Nissan’s innovative breakthroughs
Introduction
Thermal efficiency is a key indicator of engine performance, which represents the efficiency of the engine in converting fuel chemical energy into mechanical energy. In recent years, as global requirements for energy efficiency and environmental protection continue to increase, major automobile manufacturers have conducted a large amount of research and development work to improve engine thermal efficiency. This article will focus on the latest breakthroughs in thermal efficiency technology by Geely Automobile and Nissan Motor.
Milestone in Geely engine thermal efficiency certification
On April 14, 2026, it was reported thatOne of Geely Auto’s engines has received thermal efficiency certification. This certification is not only a recognition of Geely Automobile's technical strength, but also an important step for the Chinese automobile industry in the field of high-efficiency engines. The improvement in thermal efficiency means that vehicles can travel longer distances with the same fuel consumption, thereby reducing fuel consumption and emissions, which is of great significance to environmental protection.
Third-generation update of Nissan’s e-Power technology

at the same time,Nissan also announced a third-generation update of its e-Power technology in late 2025, one of the most striking achievements was the achievement of a thermal efficiency of 42%. This Nissan technology not only has ultra-high thermal efficiency, but also has an ultra-high compression ratio turbine engine of 13.0:1. This shows that while Nissan is promoting electric vehicle power systems, it is also continuing to innovate in traditional internal combustion engine technology, striving to achieve higher energy efficiency without sacrificing performance.
The Importance of Thermal Efficiency Technology
The improvement of thermal efficiency is crucial to the automotive manufacturing industry. In addition to directly reducing fuel consumption and emissions, efficient engines can improve overall vehicle performance and reduce operating costs. This is a huge attraction for consumers and also helps manufacturers meet various stringent environmental regulations. In China, with the gradual introduction of relevant policies and changes in market demand, improving engine thermal efficiency has become one of the important goals pursued by automobile manufacturers.
China’s key breakthrough in alternative fuel engines

According to a report by Xinde Maritime Network on February 12, 2025,China has made several key breakthroughs in alternative fuel engines. These breakthroughs include but are not limited to the application of new fuels, optimization of engine combustion chamber design, and technological innovations in engine management systems. These achievements not only help improve the thermal efficiency of engines, but also inject new vitality into China's automotive industry, demonstrating China's innovation capabilities and market potential in this field.
in conclusion
Geely and Nissan's recent achievements in thermal efficiency technology demonstrate the global automotive industry's trend toward becoming more efficient and environmentally friendly. China's key breakthroughs in the field of alternative fuel engines further prove China's active participation and contribution in technological innovation as one of the world's important automotive markets. With the continuous advancement of technology, we have reason to believe that future cars will be more efficient and environmentally friendly, bringing users a better travel experience.
📰 Reference source
- Geely engine obtains thermal efficiency certification- Mobile Sina (2026-04-14)
- Nissan e-Power third generation technology analysis: a thermal efficiency of 42% and an ultra-high compression ratio turbine engine of 13.0:1!- automachi.com (2025-12-30)
- China achieving several key breakthroughs in alternative fuel engines- Sindh Maritime (2025-02-12)
FAQ
What is thermal efficiency and why is it important for engines?
Thermal efficiency is a key indicator of engine performance and represents the efficiency with which the engine converts chemical fuel energy into mechanical energy. Improved thermal efficiency means that under the same fuel consumption, vehicles can travel longer distances, thus reducing fuel consumption and emissions, which is of great significance to environmental protection. In addition, high-performance engines can improve the overall performance of the vehicle and reduce operating costs.
Which Geely engines have Thermal Efficiency Certification?
According to reports, one of Geely's engines was certified for thermal efficiency on April 14, 2026. This certification is a recognition of Geely's technical strength and an important step for China's automotive industry in the field of high-performance engines.
What are the biggest features of Nissan's third-generation e-Power technology?
One of the biggest features of the third-generation e-Power technology announced by Nissan is the achievement of a thermal efficiency of 42%, while also having an ultra-high compression ratio turbine engine of 13.0: 1. This technology demonstrates Nissan's efforts to achieve greater energy efficiency without sacrificing performance.
What are the benefits to consumers and manufacturers of improving the thermal efficiency of engines?
For consumers, improved engine thermal efficiency means lower fuel costs and better vehicle performance. For manufacturers, this helps to meet stringent environmental regulations and enhance brand image and market competitiveness.
How is China progressing in the field of alternative fuel engines?
According to a report by Sindh Maritime Network on February 12, 2025, China has made a series of key breakthroughs in the field of alternative fuel engines, including the application of new fuels, the optimization of engine combustion chamber design, and technological innovations in engine management systems. These achievements have improved the thermal efficiency of the engine, demonstrating China's active participation and contribution in automotive technology innovation.