Boiler Retrofit and Energy Efficiency Upgrades Drive Global Demand
Boiler Retrofit and Energy Efficiency Upgrades Drive Global Demand
As decarbonization targets tighten worldwide and the transition toward more flexible, support role for thermal power accelerates-1, the boiler retrofit and replacement market is experiencing rapid growth. According to market research, the boiler retrofit services market is projected to expand from $0.95 billion in 2025 to $1.08 billion in 2026, at a compound annual growth rate of 13.7%. Around 73% of total heating demand globally is driven by replacement activity, rising to over 90% in mature markets-. This growth is being fueled by aging industrial boiler infrastructure, tightening environmental emission norms, and increasing investments in energy efficiency improvements-.
In June 2026, a major policy initiative was launched: China's National Development and Reform Commission and four other ministries jointly issued a three-year action plan for energy-saving and carbon-reduction retrofits targeting nine key industries, including steel, electrolytic aluminum, cement, and coal-fired power-. The plan requires accelerating the upgrade of boilers, steam turbines, transformers, and other energy-consuming equipment. For coal-fired power units, promoted technologies include high-efficiency combustion, cold-end optimization, waste heat utilization, and intelligent control-. Eligible retrofitting projects may receive central government investment subsidies of up to 20% of total investment-. Meanwhile, regional policies are pushing forward the clean replacement of coal-fired boilers, with the complete phase-out of coal-fired boilers of 10 tons of steam per hour and below.
The integration of artificial intelligence into boiler operations is another transformative trend. In July 2026, China's National Energy Administration released a high-value scenario list for "AI + Energy," which includes five high-value scenarios in the thermal power sector: intelligent fuel management for thermal power units and intelligent optimization control for boiler combustion. Early adopters are using AI to transition power plant production management from "experience-driven, variable-controlled" to "data-driven, intelligent control". For example, advanced visual sensing systems installed inside boilers now enable real-time monitoring and quantification of slagging and ash accumulation-problems that previously could only be estimated indirectly by operators-1. One plant achieved annual steam savings of 136,000 yuan per boiler and reduced equipment losses by 160,000 yuan through intelligent, on-demand soot-blowing. Another facility achieved a 2 g/kWh reduction in comprehensive coal consumption through coordinated control of air, coal, and water. AI is also enabling "multi-unit, single-control" integrated management, moving from point-based applications to full-system integration.
Biomass boiler adoption continues to expand as an alternative to coal. Recent projects include a 50-ton/hour biomass boiler project with a total investment of 240 million yuan, a 40-ton/hour biomass boiler project with an investment of 58.3 million yuan-, and a 90-ton/hour biomass boiler project incorporating wet desulfurization, wet electrostatic precipitation, and flue gas waste heat recovery systems. Additional projects include converting existing coal-fired boilers to biomass units, with capacities ranging from 8 to 40 tons/hour.
As boiler systems become more sophisticated and retrofit activity accelerates, the demand for high-quality pressure vessels-including cryogenic storage tanks, heat exchangers, and custom-engineered process equipment-continues to rise. The global power plant boiler market alone is expected to grow from $26.18 billion in 2025 to $37.24 billion by 2031, at a 6.05% CAGR-. Manufacturers with comprehensive capabilities in design, fabrication, installation, and after-sales support are essential partners for industrial clients undertaking modernization projects. The global push for energy efficiency and emissions reduction is creating sustained demand for reliable, code-compliant pressure vessel solutions across multiple industries, including energy, chemical, metallurgical, food processing, and healthcare.
