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Solar Thermal For Domestic Hot Water (DHW) Market CAGR Outlook And Future Development
The market size for solar thermal for domestic hot water (DHW) has demonstrated significant expansion in recent years. It is anticipated to expand from $4 billion in 2025 to $4.33 billion in 2026, showing a compound annual growth rate (CAGR) of 8.2%. This historical growth can be attributed to several factors, including the decrease in solar collector manufacturing expenses, an increasing dependence on fossil fuels, governmental incentive programs for solar water heating, the rise in urban residential building, and enhanced consumer knowledge of renewable hot water alternatives.
The solar thermal for domestic hot water (DHW) market is poised for significant expansion in the coming years, with projections indicating a rise to $5.98 billion by 2030, demonstrating a compound annual growth rate (CAGR) of 8.4%. This anticipated growth throughout the forecast period stems from the widespread adoption of electrified heating systems in households, enhanced thermal storage efficiency technologies, the incorporation of hybrid heating solutions within buildings, more stringent energy efficiency regulations in residential infrastructure, and progress in next-generation evacuated tube collector performance. Noteworthy trends for the forecast period include the hybrid integration of solar thermal systems with auxiliary heating technologies, increasing prevalence of thermosiphon-based passive water heating systems in residential buildings, an upswing in rooftop retrofit installations for existing housing infrastructure, breakthroughs in high-efficiency vacuum tube collector technologies, and a growing consumer demand for modular plug-and-play solar hot water kits designed for quick deployment.
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Solar Thermal For Domestic Hot Water (DHW) Market Growth Backed By Core Demand Fundamentals
The increasing number of green building certifications is anticipated to boost the expansion of the solar thermal for domestic hot water (DHW) market in the future. These certifications officially acknowledge structures that adhere to criteria for sustainability, energy efficiency, and minimized environmental footprint. The rise in green building certifications stems from an increasing desire for sustainable, energy-efficient constructions, prompting developers to embrace environmentally friendly methods. Solar thermal for domestic hot water (DHW) contributes to achieving green building certifications by offering a renewable, energy-efficient method for water heating, which lowers a building’s carbon footprint and overall energy use. As an illustration, in July 2024, the Green Building Council, a US-based non-profit organization, reported that more than 46,000 residential projects received LEED green building certification, indicating an approximate 5% increase in new registrations compared to 2023. Consequently, the growing prevalence of green building certifications is stimulating the growth of the solar thermal for domestic hot water (DHW) market.
Solar Thermal For Domestic Hot Water (DHW) Market Segmentation And Category Overview
The solar thermal for domestic hot water (dhw) market covered in this report is segmented –
1) By Component: Solar Storage Tanks, Heat Exchangers, Circulation Pumps, System Controllers, Expansion Tanks, Anti-Freeze Solutions, Mounting Structures And Racking
2) By System Type: Passive Solar Water Heating Systems, Active Closed-Loop Systems, Active Open-Loop Systems, Drainback Solar Water Heating Systems, Thermosiphon Solar Water Systems, Forced Circulation Solar Systems
3) By Capacity: Small Capacity Systems, Medium Capacity Systems, Large Capacity Systems
4) By Distribution Channel: Direct Sales, Distributors, Online Sales, Other Distribution Channels
5) By End User: Residential, Commercial, Industrial
Subsegments:
1) By Solar Storage Tanks: Pressurized Solar Storage Tanks, Non Pressurized Solar Storage Tanks, Single Coil Solar Storage Tanks, Double Coil Solar Storage Tanks, Integrated Collector Storage Tanks
2) By Heat Exchangers: Shell And Tube Heat Exchangers, Plate Heat Exchangers, Coil Type Heat Exchangers, Double Wall Heat Exchangers, External Heat Exchangers
3) By Circulation Pumps: Single Speed Circulation Pumps, Variable Speed Circulation Pumps, High Efficiency Circulation Pumps, Direct Current Powered Pumps, Alternating Current Powered Pumps
4) By System Controllers: Differential Temperature Controllers, Programmable Logic Controllers, Smart Digital Controllers, Timer Based Controllers, Multi Function Controllers
5) By Expansion Tanks: Diaphragm Expansion Tanks, Bladder Expansion Tanks, Open Expansion Tanks, Closed Expansion Tanks, Vertical Expansion Tanks
6) By Anti Freeze Solutions: Glycol Based Solutions, Propylene Glycol Solutions, Ethylene Glycol Solutions, Corrosion Inhibited Solutions, High Temperature Resistant Fluids
7) By Mounting Structures And Racking: Roof Mounted Structures, Ground Mounted Structures, Tilted Mounting Structures, Adjustable Angle Racking Systems, Fixed Angle Mounting Systems
Solar Thermal For Domestic Hot Water (DHW) Market Competitive Overview And Top Companies
Major companies operating in the solar thermal for domestic hot water (dhw) market are Rheem Manufacturing Company, A. O. Smith Corporation, Ariston Holding N. V., Vaillant Group, Himin Solar Energy Group Co. Ltd, Solimpeks Solar Energy Corp., Racold Thermo Limited, Jiangsu Sunrain Solar Energy Co. Ltd, Inter Solar Systems Private Limited, GREENoneTEC Solarindustrie GmbH, SunEarth Inc., Sonnenkraft Solar Systems GmbH, Sunerg Solar S. r. l., Solar Therm UK Ltd, Termosolar Energia Solar S. A., Heliodyne Inc., Ritter Energie und Umwelttechnik GmbH & Co. KG, Solahart Industries Pty Ltd, Rinnai Corporation, Nobel International EAD, Dimas Solar S. A., Termicol Energia Solar S. L.
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Solar Thermal For Domestic Hot Water (DHW) Market Top Region: Where Does Most Revenue Come From?
Asia-Pacific was the largest region in the solar thermal for domestic hot water (DHW) market in 2025. Asia Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the solar thermal for domestic hot water (DHW) market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East and Africa.
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Wasay has over a decade of experience in market research, data modelling, and analytics, with prior experience at GlobalData and Decision Tree Consulting Services. At The Business Research Company , he leads research operations across syndicated studies, customized consulting engagements, and the Global Market Model platform. His professional experience includes supporting organizations such as Boston Consulting Group, KPMG, and Ernst & Young. Wasay holds a degree in Electronics and Communications Engineering, postgraduate management qualifications from International Management Institute Belgium and Indian School of Business and Entrepreneurship, and completed the Integrated Program in Business Analytics from Indian Institute of Management Indore.
