Solar District Heating Global Market Report 2026

Solar district heating systems involve thermal collectors that capture solar heat to generate hot water. In this system, the thermal collector captures energy from the sun and transfers it to a thermal transfer fluid. This fluid is then transported to the mechanical room, where the heated water circulates through pipes, transferring heat as a utility to customers, residents, and other users.

There are different types of systems in solar district heating, categorized into small systems and large systems. Small solar heating district systems are those with less than 1000 m2 of solar collector area and less than 1000 m3 of seasonal thermal energy storage volume. Solar district heating systems find widespread applications in residential, commercial, and industrial settings.

Note that the outlook for this market is being affected by rapid changes in trade relations and tariffs globally. The report will be updated prior to delivery to reflect the latest status, including revised forecasts and quantified impact analysis. The report's Recommendations and Conclusions sections will be updated to give strategies for entities dealing with the fast-moving international environment.

Tariffs are impacting the solar district heating market by increasing costs of imported thermal collectors, steel piping, heat exchangers, insulation materials, and control systems used in small and large-scale installations. European regions are most affected due to dependence on imported solar thermal components, while Asia-Pacific faces cost pressures on collector manufacturing. These tariffs are raising capital expenditure for municipal heating projects and extending deployment timelines. However, they are also encouraging local manufacturing of thermal components, regional supplier development, and domestic engineering capabilities for solar heating networks.

The solar district heating market research report is one of a series of new reports from The Business Research Company that provides solar district heating market statistics, including solar district heating industry global market size, regional shares, competitors with a solar district heating market share, detailed solar district heating market segments, market trends and opportunities, and any further data you may need to thrive in the solar district heating industry. This solar district heating market research report delivers a complete perspective of everything you need, with an in-depth analysis of the current and future scenario of the industry.

The solar district heating market size has grown rapidly in recent years. It will grow from $4.15 billion in 2025 to $4.63 billion in 2026 at a compound annual growth rate (CAGR) of 11.6%. The growth in the historic period can be attributed to early adoption of centralized heating infrastructure, expansion of urban district heating networks, availability of solar thermal collector technologies, rising fossil fuel heating costs, public sector renewable heating initiatives.

The solar district heating market size is expected to see rapid growth in the next few years. It will grow to $7.01 billion in 2030 at a compound annual growth rate (CAGR) of 10.9%. The growth in the forecast period can be attributed to increasing investments in low-carbon district heating, rising energy efficiency regulations, expansion of renewable heating mandates, growing deployment of large-scale thermal storage, increasing focus on urban decarbonization. Major trends in the forecast period include expansion of large-scale solar thermal collector fields, increasing integration with district heating networks, rising deployment of seasonal thermal energy storage, growing use of hybrid solar heating systems, enhanced focus on heat loss reduction.

The increasing adoption of sustainable energy is driving the growth of the solar district heating market. Governments, residents, and industries worldwide are focusing on embracing sustainable energy to reduce reliance on conventional energy sources and enhance the use of clean energy such as solar, wind, hydropower, and bioenergy. This rising trend is expected to boost the implementation of solar district heating systems, which provide the most cost-effective heating solutions for commercial, residential, and industrial customers compared to existing heating options. For example, in April 2023, a report from the National Renewable Energy Laboratory (NREL), a US-based research organization dedicated to advancing renewable energy and energy efficiency technologies, revealed that global photovoltaic (PV) installations reached 231 gigawatts of direct current (GWdc) in 2022, totaling 1.2 terawatts of direct current (TWdc) cumulatively. Annual installations are projected to exceed 300 GW by 2023 and surpass 400 GW by 2025. Therefore, the increasing adoption of sustainable energy is anticipated to enhance the utilization of solar district heating during the forecast period.

Leading companies in the solar district heating market are focusing on developing large-scale solar thermal solutions to decarbonize heating, reduce dependence on fossil fuels, and enhance energy efficiency in urban areas. Large-scale solar thermal solutions use extensive solar collector fields to capture and store solar heat for centralized district heating or industrial processes, providing renewable and efficient thermal energy on a citywide or industrial scale. For example, in December 2025, Kosovo Energy Corporation j.s.c.a., a Kosovo-based energy company, launched the largest solar thermal district heating project in the Western Balkans. The project includes a 40.6 MW solar collector field paired with a 408,000 m3 seasonal heat storage facility, allowing solar heat captured in summer to be stored and used during winter. The system will serve approximately 38,000 residential consumers in Pristina, reduce reliance on coal-based heating, and cut around 47,000 tonnes of CO2 emissions annually.

In March 2023, Solar, a Europe-based company, acquired a 51% stake in ThermoNova A/S, a Denmark-based company specializing in high-capacity heat pumps for heating buildings. This acquisition is expected to accelerate the green transition in both small and large companies, particularly in the industrial sector, by offering energy-efficient heating solutions to replace traditional gas and oil-based systems. ThermoNova A/S's expertise in producing heat pumps aligns with the broader objective of advancing energy-efficient solutions in the solar district heating market.

Major companies operating in the solar district heating market are DESMI A/S, Goteborg Energi AB, Keppel District Heating and Cooling Services Pte. Ltd., Korea District Heating Corporation, LOGSTOR A/S, Arcon-Sunmark A/S, Savosolar Oyj, Solvis GmbH, S. O. L. I. D. GmbH, Sunamp Ltd., WOLF GmbH, Aalborg CSP A/S, Absolicon Solar Collector AB, Institut fur Nachhaltige Technologien, BrightSource Energy Inc., CitrinSolar GmbH, Energie Solaire SA, Frenell GmbH, Heliodyne Inc., Industrial Solar GmbH, Sunlumo Technology GmbH, Sunoptimo SA, Suntrix Company Limited, TSK Flagsol Engineering GmbH, TVP Solar SA, Viessmann Werke GmbH & Co. KG, Wagner Solar GmbH, Institute for Sustainable Technologies, KBB Kollektorbau GmbH, Alfa Laval AB

Western Europe was the largest region in the solar district heating market in 2025.Asia-Pacific is expected to be the fastest-growing region in the solar district heating market share during the forecast period. The regions covered in the solar district heating market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa.

The countries covered in the solar district heating market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain

The solar district heating market includes revenues earned by entities by providing services such as thermal energy storage, district heating system, and seasonal storage with the aid of solar thermal collectors and flat-plate collectors. The market value includes the value of related goods sold by the service provider or included within the service offering. Only goods and services traded between entities or sold to end consumers are included.

The market value is defined as the revenues that enterprises gain from the sale of goods and/or services within the specified market and geography through sales, grants, or donations in terms of the currency (in USD unless otherwise specified).

The revenues for a specified geography are consumption values that are revenues generated by organizations in the specified geography within the market, irrespective of where they are produced. It does not include revenues from resales along the supply chain, either further along the supply chain or as part of other products.

Solar District Heating Market Global Report 2026 from The Business Research Company provides strategists, marketers and senior management with the critical information they need to assess the market.

This report focuses solar district heating market which is experiencing strong growth. The report gives a guide to the trends which will be shaping the market over the next ten years and beyond.

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Where is the largest and fastest growing market for solar district heating ? How does the market relate to the overall economy, demography and other similar markets? What forces will shape the market going forward, including technological disruption, regulatory shifts, and changing consumer preferences? The solar district heating market global report from the Business Research Company answers all these questions and many more.

The report covers market characteristics, size and growth, segmentation, regional and country breakdowns, total addressable market (TAM), market attractiveness score (MAS), competitive landscape, market shares, company scoring matrix, trends and strategies for this market. It traces the market's historic and forecast market growth by geography.

• The market characteristics section of the report defines and explains the market. This section also examines key products and services offered in the market, evaluates brand-level differentiation, compares product features, and highlights major innovation and product development trends.
• The supply chain analysis section provides an overview of the entire value chain, including key raw materials, resources, and supplier analysis. It also provides a list competitor at each level of the supply chain.
• The updated trends and strategies section analyses the shape of the market as it evolves and highlights emerging technology trends such as digital transformation, automation, sustainability initiatives, and AI-driven innovation. It suggests how companies can leverage these advancements to strengthen their market position and achieve competitive differentiation.
• The regulatory and investment landscape section provides an overview of the key regulatory frameworks, regularity bodies, associations, and government policies influencing the market. It also examines major investment flows, incentives, and funding trends shaping industry growth and innovation.
• The market size section gives the market size ($b) covering both the historic growth of the market, and forecasting its development.
• The forecasts are made after considering the major factors currently impacting the market. These include the technological advancements such as AI and automation, Russia-Ukraine war, trade tariffs (government-imposed import/export duties), elevated inflation and interest rates.
• The total addressable market (TAM) analysis section defines and estimates the market potential compares it with the current market size, and provides strategic insights and growth opportunities based on this evaluation.
• The market attractiveness scoring section evaluates the market based on a quantitative scoring framework that considers growth potential, competitive dynamics, strategic fit, and risk profile. It also provides interpretive insights and strategic implications for decision-makers.
• Market segmentations break down the market into sub markets.
• The regional and country breakdowns section gives an analysis of the market in each geography and the size of the market by geography and compares their historic and forecast growth.
• Expanded geographical coverage includes Taiwan and Southeast Asia, reflecting recent supply chain realignments and manufacturing shifts in the region. This section analyzes how these markets are becoming increasingly important hubs in the global value chain.
• The competitive landscape chapter gives a description of the competitive nature of the market, market shares, and a description of the leading companies. Key financial deals which have shaped the market in recent years are identified.
• The company scoring matrix section evaluates and ranks leading companies based on a multi-parameter framework that includes market share or revenues, product innovation, and brand recognition.

Scope

• Markets Covered:1) By System: Small System; Large System
• 2) By Technology: Flat-Plate Collectors; Evacuated Tube Collectors; Concentrated Solar Thermal Systems
• 3) By Application: Residential; Commercial; Industrial
• Subsegments:
• 1) By Small System: Residential Solar District Heating; Community Solar Heating Systems
• 2) By Large System: Industrial Solar District Heating; District Heating Networks; Combined Heat And Power (CHP) Systems
• Companies Mentioned: DESMI A/S; Goteborg Energi AB; Keppel District Heating and Cooling Services Pte. Ltd.; Korea District Heating Corporation; LOGSTOR A/S; Arcon-Sunmark A/S; Savosolar Oyj; Solvis GmbH; S. O. L. I. D. GmbH; Sunamp Ltd.; WOLF GmbH; Aalborg CSP A/S; Absolicon Solar Collector AB; Institut fur Nachhaltige Technologien; BrightSource Energy Inc.; CitrinSolar GmbH; Energie Solaire SA; Frenell GmbH; Heliodyne Inc.; Industrial Solar GmbH; Sunlumo Technology GmbH; Sunoptimo SA; Suntrix Company Limited; TSK Flagsol Engineering GmbH; TVP Solar SA; Viessmann Werke GmbH & Co. KG; Wagner Solar GmbH; Institute for Sustainable Technologies; KBB Kollektorbau GmbH; Alfa Laval AB
• Countries: Australia; Brazil; China; France; Germany; India; Indonesia; Japan; Taiwan; Russia; South Korea; UK; USA; Canada; Italy; Spain
• Regions: Asia-Pacific; South East Asia; Western Europe; Eastern Europe; North America; South America; Middle East; Africa
• Time Series: Five years historic and ten years forecast.
• Data: Ratios of market size and growth to related markets, GDP proportions, expenditure per capita,
• Data Segmentations: country and regional historic and forecast data, market share of competitors, market segments.
• Sourcing and Referencing: Data and analysis throughout the report is sourced using end notes.
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