In order to optimize the global new energy power supply structure and solve the intermittent and unstable problems of photovoltaic and wind power generation, major economies have accelerated the layout of solar thermal power generation projects in 2026. Different from photovoltaic power generation, solar thermal power generation converts solar light energy into heat energy through heat-absorbing materials, stores heat through heat-storage materials, and drives steam turbines to generate electricity, which has the advantages of stable power output, adjustable power generation and no power generation intermittence. It is an important stable clean power source in the global new energy power system, and the industrial scale continues to expand rapidly.
Heat-absorbing and heat-storage materials are the core core of solar thermal power stations, and their photothermal conversion efficiency, high-temperature resistance and cycle stability directly determine the power generation efficiency, service life and operation cost of power stations. Traditional solar thermal power stations mostly use metal alloy and molten salt ceramic heat storage materials. Metal materials have low heat storage density, serious high-temperature oxidation and short service life, and need frequent replacement. Molten salt ceramic materials have poor thermal conductivity, low photothermal conversion efficiency, and are prone to thermal fatigue damage after long-term high-temperature cycle operation, resulting in reduced power station operation efficiency and increased maintenance costs.
High-performance composite graphite heat-absorbing and heat-storage materials have become the optimal material for modern high-efficiency solar thermal power stations by virtue of their unique performance advantages. Graphite materials have ultra-high thermal conductivity, excellent photothermal conversion performance and ultra-stable high-temperature resistance, and can work stably in a high-temperature environment above 800℃ for a long time without oxidation and performance attenuation. After composite modification treatment, graphite materials have ultra-high heat storage density and excellent thermal cycle stability, which can efficiently absorb and store solar heat energy, realize stable heat release and power generation in cloudy days and night, and greatly improve the full-cycle power generation efficiency of solar thermal power stations.
In recent years, with the continuous technological progress of the global solar thermal power industry, high-end graphite photothermal materials have been comprehensively popularized in tower-type and trough-type high-efficiency solar thermal power stations. The application of graphite heat-absorbing and heat-storage materials has increased the photothermal conversion efficiency of power stations by more than 20%, extended the service life of heat storage systems by more than 3 times, and greatly reduced the annual operation and maintenance cost of power stations. Industry data shows that the global market scale of solar thermal graphite materials will maintain a steady growth rate of 11.8% in the next five years, with broad market prospects.
The R&D and production of solar thermal special graphite materials have high technical requirements. The materials need to have ultra-high purity to avoid high-temperature impurity decomposition and performance attenuation, excellent anti-oxidation performance to adapt to long-term high-temperature air environment operation, and balanced thermal conductivity and heat storage density to ensure efficient photothermal conversion and stable heat storage and release. In addition, the materials need to have excellent thermal shock resistance to adapt to the temperature difference alternating environment of day and night operation of power stations, with extremely strict comprehensive performance indicators.
Focusing on the development needs of the global solar thermal power industry, Jincheng Graphite has independently developed a full range of high-performance composite graphite heat-absorbing and heat-storage materials for photothermal power generation through targeted technical research. The enterprise adopts high-purity graphite raw material purification and special high-temperature anti-oxidation modification technology to optimize the thermal conductivity, heat storage density and cycle stability of materials. The developed photothermal graphite materials have ultra-high photothermal conversion efficiency, excellent high-temperature oxidation resistance and thermal shock resistance, and can operate stably for a long time in complex power station working environments.
Jincheng Graphite's solar thermal graphite product series includes graphite heat-absorbing plates, high-temperature heat-storage graphite blocks, photothermal conversion composite components and thermal insulation graphite materials, which can provide one-stop material supporting solutions for tower-type, trough-type and disc-type solar thermal power stations. After practical verification of international photothermal projects, the enterprise's products can effectively improve the power generation efficiency of power stations, reduce equipment failure rate and extend the service life of heat storage systems, with comprehensive performance leading the industry level.
At present, Jincheng Graphite has reached long-term strategic cooperation with many global solar thermal power project developers and equipment manufacturers, and its products have been applied in large-scale photothermal power projects in the Middle East, North Africa and Europe. With the continuous expansion of the global solar thermal power industrial scale, Jincheng Graphite will continue to optimize the formula and process of photothermal graphite materials, further improve power generation supporting performance, and provide reliable core material support for the stable development of the global clean thermal power industry.
