Global Solar Thermal Market Growth, Share, Size, Trends and Forecast (2025 - 2031)

The global solar thermal market is segmented by collector type into glazed collectors and unglazed collectors, each catering to specific applications and environments. Glazed collectors feature a transparent cover, usually made of glass, which enhances heat absorption and retention. These collectors are well-suited for applications requiring higher temperatures, such as space heating systems and industrial process heat. In contrast, unglazed collectors lack a transparent cover and are typically used in low-temperature applications such as swimming pool heating and preheating ventilation air in buildings. The versatility of glazed and unglazed collectors allows them to address a wide range of heating needs across various sectors.

In terms of applications, the solar thermal market encompasses space heating systems, domestic hot water systems, and other specialized applications. Space heating systems utilize solar thermal energy to provide heating for residential, commercial, and industrial buildings, reducing reliance on conventional heating fuels and lowering carbon emissions. Domestic hot water systems harness solar thermal energy to heat water for household use, including bathing, washing, and cooking, offering a renewable and cost-effective alternative to electric or gas water heaters. Solar thermal technology finds applications in niche sectors such as agricultural heating, desalination, and solar cooling, contributing to the diversification of the market.

Geographically, the global solar thermal market spans North America, Europe, Asia Pacific, Middle East and Africa, and Latin America, each region exhibiting unique market dynamics and growth opportunities. North America and Europe have been early adopters of solar thermal technology, driven by favorable regulatory policies, government incentives, and growing environmental awareness. In contrast, the Asia Pacific region, particularly countries like China and India, presents immense growth potential fueled by rapid urbanization, increasing energy demand, and supportive government initiatives to promote renewable energy adoption. Similarly, the Middle East and Africa region is witnessing growing interest in solar thermal technology to address energy access challenges and reduce dependence on fossil fuels. Latin America also offers promising opportunities for solar thermal market expansion, driven by favorable solar radiation levels, economic development, and rising environmental consciousness.

Over the forecast period from 2020 to 2030, the global solar thermal market is expected to witness steady growth, driven by advancements in technology, expanding applications, and supportive regulatory frameworks. Glazed and unglazed collectors will continue to play pivotal roles in meeting heating requirements across various sectors, while space heating systems, domestic hot water systems, and specialized applications will drive market demand. With geographical expansion and increasing market penetration in emerging economies, the global solar thermal market is poised for significant development, contributing to the transition towards sustainable and renewable energy sources on a global scale.

Global Solar Thermal Segment Analysis

In this report, the Global Solar Thermal Market has been segmented by Collector Type, Application, End-Use, and Geography.

Global Solar Thermal Market, Segmentation by Collector Type

The Global Solar Thermal Market has been segmented by Collector Type into Glazed Collector and Unglazed Collector.

In the global solar thermal market, collector types play a pivotal role in harnessing solar energy for various applications. One of the primary categories is glazed collectors, which feature a transparent cover, typically made of glass or plastic, to trap solar radiation and create a greenhouse effect within the collector. Glazed collectors are highly efficient in capturing solar energy and are commonly used in applications requiring higher temperatures, such as water heating and space heating systems. Their ability to maintain higher temperatures makes them suitable for use in colder climates or during periods of reduced sunlight.

In contrast, unglazed collectors do not feature a transparent cover and are primarily used for lower-temperature applications such as pool heating and air heating systems. These collectors consist of an absorber plate typically made of metal or polymer, which directly absorbs solar radiation and transfers heat to the circulating fluid. Unglazed collectors are simpler in design and more cost-effective than glazed collectors, making them popular for applications where lower temperatures suffice, such as residential swimming pool heating systems or preheating ventilation air for buildings.

The choice between glazed and unglazed collectors depends on various factors, including the intended application, climate conditions, and budget considerations. Glazed collectors offer higher efficiency and temperature output, making them suitable for applications requiring higher temperatures or where space constraints limit the collector area. On the other hand, unglazed collectors are more cost-effective and easier to install, making them ideal for applications where lower temperatures are acceptable, or where cost considerations are paramount.

The selection of collector type, whether glazed or unglazed, depends on the specific requirements of the solar thermal system and the desired balance between efficiency, cost-effectiveness, and performance. Both glazed and unglazed collectors play important roles in the global solar thermal market, catering to a wide range of applications and contributing to the transition towards renewable energy and sustainable heating solutions.

Global Solar Thermal Market, Segmentation by Application

The Global Solar Thermal Market has been segmented by Application into Space Heating Systems, Domestic Hot Water Systems and Others.

The global solar thermal market sees diverse applications, with space heating systems, domestic hot water systems, and other uses standing out prominently. Space heating systems leverage solar thermal technology to provide warmth to residential, commercial, and industrial spaces, reducing reliance on traditional heating sources and lowering carbon emissions. By harnessing solar energy to heat indoor spaces, these systems offer sustainable heating solutions that align with energy efficiency and environmental conservation goals.

Domestic hot water systems represent another significant application of solar thermal technology, catering to the heating needs of households, hotels, hospitals, and other facilities. These systems use solar collectors to heat water for various domestic purposes, including bathing, cooking, and cleaning. By utilizing solar energy to heat water, they reduce energy costs, minimize reliance on fossil fuels, and contribute to the transition to renewable energy sources in the residential and commercial sectors.

Beyond space heating and domestic hot water, solar thermal technology finds applications in a range of other areas, including industrial processes, agricultural operations, and swimming pool heating. Industrial processes may utilize solar thermal systems for tasks such as steam generation, drying, and preheating feedwater, enhancing energy efficiency and reducing operational costs. In agriculture, solar thermal technology can be employed for crop drying, greenhouse heating, and livestock warming, supporting sustainable farming practices and improving productivity. Solar thermal systems are utilized to heat swimming pools, providing comfortable water temperatures while reducing energy consumption and operational expenses for pool owners.

The global solar thermal market encompasses a diverse array of applications, including space heating systems, domestic hot water systems, and various other uses across residential, commercial, industrial, and agricultural sectors. These applications leverage solar thermal technology to deliver sustainable heating solutions, reduce energy costs, and contribute to environmental sustainability efforts on a global scale. As the demand for renewable energy solutions continues to grow, solar thermal technology is expected to play an increasingly vital role in meeting heating needs across various industries and applications.

Global Solar Thermal Market, Segmentation by End-Use

The Global Solar Thermal Market has been segmented by End-Use into Residential, Commercial, and Industrial.

The global solar thermal market is categorized based on end-use applications into three key segments: residential, commercial, and industrial. This segmentation helps in understanding the varied adoption patterns, technological advancements, and demand dynamics across different sectors. The residential sector primarily consists of household applications such as water heating, space heating, and, in some cases, cooling. Homeowners across the world are increasingly adopting solar thermal systems to reduce electricity bills, lower their carbon footprint, and achieve energy independence. Countries with favorable government incentives and subsidies, such as Germany, China, and India, have witnessed significant growth in residential solar thermal installations. Additionally, advancements in technology, such as improved collectors and heat storage systems, have made solar thermal solutions more efficient and affordable for homeowners.

The commercial segment of the solar thermal market includes applications in businesses, hotels, hospitals, schools, and other commercial establishments that require large-scale heating solutions. Commercial buildings have substantial energy needs, especially for water heating, space heating, and in some cases, air conditioning through absorption cooling systems. Many hotels and hospitals, for example, have turned to solar thermal energy to meet their hot water demands while reducing operational costs. Similarly, educational institutions and corporate offices are incorporating solar thermal solutions as part of their sustainability initiatives. The commercial sector benefits from economies of scale, meaning larger installations often yield better cost savings and return on investment. Government policies promoting green energy adoption in commercial spaces further boost the growth of this segment.

The industrial segment is one of the most promising sectors for solar thermal technology due to the high energy demands of manufacturing and processing industries. Industrial applications include process heating, drying, desalination, and steam generation. Industries such as food and beverage processing, textiles, paper, and chemicals heavily rely on heat for various production processes. Traditionally, these industries have depended on fossil fuels for heating needs, but rising fuel costs and stringent environmental regulations have pushed industries to explore cleaner alternatives like solar thermal energy. High-temperature solar thermal technologies, such as concentrating solar power (CSP) and parabolic trough systems, have enabled industries to generate heat at temperatures suitable for industrial applications. Additionally, solar thermal energy helps industries lower their carbon emissions, making them more compliant with global sustainability goals and regulatory frameworks.

Each of these segments plays a crucial role in shaping the global solar thermal market. While the residential sector drives mass adoption through decentralized installations, the commercial sector enhances market penetration by integrating solar thermal into large-scale buildings. Meanwhile, the industrial segment showcases the potential of solar thermal energy in replacing traditional fossil fuel-based heating systems in energy-intensive industries. The continuous development of more efficient solar collectors, storage solutions, and hybrid systems combining solar thermal with other renewable technologies is further strengthening the market’s growth. Additionally, supportive government policies, tax benefits, and incentives across various regions encourage the adoption of solar thermal systems

Global Solar Thermal Market, Segmentation by Geography

In this report, the Global Solar Thermal Market has been segmented by Geography into five regions; North America, Europe, Asia Pacific, Middle East and Africa and Latin America.

Global Solar Thermal Market Share (%), by Geographical Region, 2024

The global solar thermal market is poised for significant growth across various regions from 2020 to 2030. In North America, increased awareness of renewable energy solutions and government initiatives promoting clean energy adoption are expected to drive market expansion. Favorable regulatory policies and financial incentives, coupled with technological advancements in solar thermal technology, are likely to spur investment in solar thermal projects across the region.

Europe is anticipated to witness substantial growth in the solar thermal market during the forecast period. The European Union's ambitious renewable energy targets and efforts to decarbonize the economy are driving the deployment of solar thermal systems for heating and cooling applications. Stringent energy efficiency regulations and building codes further incentivize the adoption of solar thermal technology in residential, commercial, and industrial sectors across Europe.

In the Asia Pacific region, rapid urbanization, industrialization, and increasing energy demand are driving the demand for clean and sustainable energy solutions. Countries like China, India, and Australia are investing in solar thermal projects to diversify their energy mix and reduce dependence on fossil fuels. Supportive government policies, technological advancements, and declining costs of solar thermal systems are expected to fuel market growth in the Asia Pacific region.

In the Middle East and Africa, abundant solar resources and growing awareness of the benefits of solar thermal technology present significant opportunities for market expansion. Countries in the region are investing in solar thermal projects to meet rising energy demand, enhance energy security, and drive economic development. Initiatives to address water scarcity and desalination projects are driving the adoption of solar thermal technology for water heating and desalination applications in the Middle East and Africa.

This report provides an in depth analysis of various factors that impact the dynamics of Global Solar Thermal Market. These factors include; Market Drivers, Restraints and Opportunities.

Drivers, Restraints and Opportunity

Drivers:

• Energy Security and Independence
• Government Support and Incentive Programs
• Technological Advancements and Cost Reductions

• Energy Efficiency and Building Standards:The growing emphasis on energy efficiency in building design and construction codes has led to increased demand for solar thermal systems across residential, commercial, and industrial sectors. Solar thermal technology plays a crucial role in helping buildings meet stringent energy efficiency standards and green building certifications by providing renewable heating and cooling solutions. By integrating solar thermal systems into building designs, property developers and owners can reduce reliance on conventional heating and cooling methods powered by fossil fuels, thereby lowering energy consumption and carbon emissions.

  Solar thermal systems offer renewable heating and cooling solutions that align with sustainability objectives and energy efficiency goals in building construction. By harnessing solar energy to generate heat for water heating, space heating, and industrial process heating, solar thermal technology reduces reliance on non-renewable energy sources and contributes to decarbonizing building operations. Solar thermal collectors can be integrated into building envelopes and HVAC (Heating, Ventilation, and Air Conditioning) systems, providing efficient and environmentally friendly heating and cooling solutions that enhance indoor comfort and occupant satisfaction.

  Solar thermal systems help buildings comply with green building certifications such as LEED (Leadership in Energy and Environmental Design), BREEAM (Building Research Establishment Environmental Assessment Method), and ENERGY STAR by demonstrating commitment to sustainability and environmental stewardship. Buildings equipped with solar thermal technology earn points towards green building certifications, as they demonstrate reduced environmental impact, improved energy efficiency, and increased use of renewable energy resources. As a result, solar thermal systems are increasingly integrated into building designs as part of holistic sustainability strategies aimed at achieving green building certifications and enhancing property value.

  Solar thermal systems offer long-term cost savings and environmental benefits to building owners and occupants by reducing energy costs, minimizing utility bills, and lowering carbon footprint. While upfront investment in solar thermal technology may be higher compared to conventional heating and cooling systems, the long-term return on investment (ROI) through energy savings and reduced operational expenses justifies the initial capital outlay. Solar thermal systems contribute to environmental conservation by reducing greenhouse gas emissions, mitigating climate change impacts, and promoting the transition to a clean and sustainable energy future.

Restraints:

• High Initial Investment Costs
• Intermittent Nature of Solar Energy
• Competition from Other Renewable Energy Sources

• Limited Awareness and Market Education:Limited awareness and understanding of the benefits and capabilities of solar thermal technology among consumers, businesses, and policymakers pose significant challenges to market growth. In many regions, there is a lack of comprehensive market education and outreach efforts to effectively communicate the advantages of solar thermal systems. As a result, potential users may harbor misconceptions or skepticism about the reliability, efficiency, and cost-effectiveness of these systems, hindering their adoption and market penetration.

  Addressing the issue of limited awareness and market education requires concerted efforts from industry stakeholders, government agencies, and advocacy groups to promote the benefits of solar thermal technology. Comprehensive educational campaigns, targeted marketing initiatives, and outreach programs can help raise awareness about the advantages of solar thermal systems, dispel misconceptions, and build confidence among consumers, businesses, and policymakers. By providing accurate information and real-world examples of successful solar thermal installations, stakeholders can foster greater understanding and acceptance of these technologies.

  Enhancing market education about solar thermal technology involves highlighting its various applications, including water heating, space heating, and industrial process heating, across different sectors. By showcasing the versatility and adaptability of solar thermal systems in meeting diverse heating needs, stakeholders can demonstrate the potential for cost savings, energy efficiency, and environmental sustainability. Educational initiatives should emphasize the long-term benefits and positive environmental impact of solar thermal technology, aligning with broader sustainability goals and climate change mitigation efforts.

  In parallel, policymakers play a crucial role in promoting market education and awareness by implementing supportive policies, incentives, and regulations that encourage the adoption of solar thermal systems. By offering financial incentives, rebates, and tax credits for solar thermal installations, governments can stimulate market demand and facilitate the transition to renewable heating technologies. Incorporating solar thermal requirements or incentives into building codes and regulations can help mainstream these technologies in new construction projects and building renovations, driving market growth and accelerating the transition to a clean energy future.

Opportunities:

• Technological Advancements and Innovation
• Integration with Energy Storage Systems
• Expansion into Emerging Markets

• Government Incentives and Support Programs:Supportive government policies, incentives, and financial support programs play a crucial role in stimulating market demand for solar thermal technology. Governments worldwide are increasingly recognizing the importance of transitioning to renewable energy sources to mitigate climate change and reduce dependence on fossil fuels. As part of their renewable energy strategies, governments implement various measures to encourage the adoption of solar thermal systems. These measures often include subsidies, tax incentives, feed-in tariffs, and grants aimed at reducing the upfront costs and financial barriers associated with solar thermal installations.

  In addition to financial incentives, governments can also implement policy measures such as renewable energy mandates, net metering policies, and building energy codes to drive market growth for solar thermal technology. Renewable energy mandates set targets for the percentage of energy generation from renewable sources, creating a market demand for solar thermal systems and other renewable energy technologies. Net metering policies allow solar thermal system owners to sell excess electricity generated back to the grid, providing a financial incentive for investment in solar thermal installations. Building energy codes may require or incentivize the incorporation of solar thermal systems in new construction projects or building renovations, further driving market adoption.

  Supportive government policies can facilitate market development by creating a stable and predictable regulatory environment for solar thermal technology. Clear and transparent regulations help reduce uncertainty for investors and stakeholders, encouraging greater investment in solar thermal projects. Governments can also establish industry standards, certification requirements, and quality assurance mechanisms to ensure the reliability, safety, and performance of solar thermal systems. By fostering a conducive policy environment, governments can unlock the full potential of solar thermal technology and accelerate the transition to a sustainable energy future.

  Government incentives and support programs are essential drivers of market growth for solar thermal technology, providing the necessary financial incentives, regulatory frameworks, and market signals to spur investment, innovation, and deployment. As governments continue to prioritize renewable energy and climate action, the role of supportive policies in promoting solar thermal technology will remain critical in realizing its full economic, environmental, and societal benefits.

Key players in Global Solar Thermal Market include:

• Sunrain
• Greenonetec Solarindustrie GmbH
• TE solar Co.,Ltd
• LINUO RITTER INTERNATIONAL CO. LTD
• Photon Energy Systems Limited (Photon)
• HTP Comfort Solutions LLC
• Viessmann Manufacturing Company Inc

In this report, the profile of each market player provides following information:

• Company Overview and Product Portfolio
• Key Developments
• Financial Overview
• Strategies
• Company SWOT Analysis