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    Solar Water Heater Market

    ID: MRFR/E&P/5666-HCR
    111 Pages
    Priya Nagrale
    October 2025

    Solar Water Heater Market Research Report Information By Collector Type (Evacuated Tube Collector, Flat Plate Collector, Unglazed Water Collector), By Type (Integral Collector Storage, Thermosyphon), And By Region (North America, Europe, Asia-Pacific, And Rest Of The World) – Market Forecast Till 2035

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    Solar Water Heater Market Infographic
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    Solar Water Heater Market Summary

    As per MRFR analysis, The Global Solar Water Heater Size was estimated at 4.35 USD Billion in 2024. The solar water heater industry is projected to grow from 4.672 USD Billion in 2025 to 9.551 USD Billion by 2035, exhibiting a compound annual growth rate (CAGR) of 7.41 during the forecast period 2025 - 2035.

    Key Market Trends & Highlights

    The Global Solar Water Heater is poised for substantial growth driven by technological advancements and increasing consumer awareness.

    • North America remains the largest market for solar water heaters, driven by robust regulatory support and consumer demand.
    • The Asia-Pacific region is currently the fastest-growing market, reflecting a surge in urbanization and energy needs.
    • The Thermosyphon segment holds the largest market share, while the Integral Collector Storage segment is experiencing rapid growth.
    • Rising energy costs and environmental concerns are key drivers propelling the adoption of solar water heaters globally.

    Market Size & Forecast

    2024 Market Size 4.35 (USD Billion)
    2035 Market Size 9.551 (USD Billion)
    CAGR (2025 - 2035) 7.41%

    Major Players

    Rheem (US), A.O. Smith (US), Bosch Thermotechnology (DE), Viessmann (DE), SolarWorld (DE), Himin Solar (CN), Sunrain (CN), Sungrow (CN), Tata Power Solar (IN), Rinnai (JP)

    Solar Water Heater Market Trends

    The Global Solar Water Heater is currently experiencing a transformative phase, driven by increasing awareness of renewable energy sources and the need for sustainable solutions. As environmental concerns gain prominence, consumers and businesses alike are gravitating towards solar water heating systems, which offer an eco-friendly alternative to traditional energy sources. This shift is further supported by government initiatives promoting the adoption of renewable technologies, which appear to be fostering a favorable regulatory environment. Moreover, advancements in technology are enhancing the efficiency and affordability of solar water heaters, making them more accessible to a broader audience. In addition to technological improvements, The Global Solar Water Heater is witnessing a rise in consumer demand for energy-efficient products. This trend is likely influenced by rising energy costs and a growing emphasis on reducing carbon footprints. As a result, manufacturers are increasingly focusing on developing innovative solutions that cater to the evolving needs of consumers. The market landscape is thus characterized by a dynamic interplay of technological advancements, regulatory support, and shifting consumer preferences, all of which are shaping the future of solar water heating solutions.

    Technological Advancements

    Recent innovations in solar water heating technology are enhancing system efficiency and performance. Manufacturers are integrating smart technologies, such as IoT capabilities, to optimize energy usage and improve user experience. These advancements are likely to attract a wider customer base, as they promise greater convenience and cost savings.

    Regulatory Support

    Government policies and incentives are playing a crucial role in promoting the adoption of solar water heaters. Various countries are implementing subsidies and tax benefits to encourage consumers to invest in renewable energy solutions. This regulatory backing appears to be a significant driver of market growth.

    Consumer Awareness and Demand

    There is a noticeable increase in consumer awareness regarding the benefits of solar water heating systems. As individuals become more environmentally conscious, the demand for sustainable energy solutions is rising. This trend suggests a shift in consumer behavior towards energy-efficient products, further propelling market expansion.

    The increasing adoption of solar water heating systems is indicative of a broader shift towards renewable energy solutions, driven by both environmental concerns and economic incentives.

    U.S. Department of Energy

    Solar Water Heater Market Drivers

    Rising Energy Costs

    The increasing cost of conventional energy sources is a pivotal driver for The Global Solar Water Heater Industry. As energy prices continue to rise, consumers and businesses are seeking alternative solutions to mitigate their energy expenses. Solar water heaters present a cost-effective option, allowing users to harness solar energy for heating water, thereby reducing reliance on expensive fossil fuels. In many regions, the cost of solar water heating systems has decreased significantly, making them more accessible. According to recent data, the average payback period for solar water heaters has improved, often falling within 3 to 7 years, depending on local energy prices and incentives. This economic advantage is likely to propel the adoption of solar water heaters, as more consumers recognize the long-term savings associated with these systems.

    Environmental Concerns

    Growing environmental awareness is a crucial factor influencing The Global Solar Water Heater Industry. As climate change and environmental degradation become increasingly pressing issues, consumers and governments alike are prioritizing sustainable energy solutions. Solar water heaters, which utilize renewable energy, contribute to reducing greenhouse gas emissions and reliance on non-renewable resources. The shift towards eco-friendly technologies is evident, with many countries implementing policies to promote renewable energy adoption. For instance, various nations have set ambitious targets for reducing carbon footprints, which often include incentives for solar energy systems. This trend suggests that as environmental concerns continue to rise, the demand for solar water heaters will likely increase, positioning them as a viable solution for both residential and commercial applications.

    Increasing Urbanization

    The trend of increasing urbanization is a significant driver for The Global Solar Water Heater Industry. As urban populations grow, the demand for energy-efficient solutions in residential and commercial buildings intensifies. Urban areas often face challenges related to energy supply and environmental sustainability, making solar water heaters an appealing option. The integration of solar water heating systems in urban infrastructure can help alleviate pressure on conventional energy sources while promoting sustainable living. Moreover, many urban centers are implementing building codes that encourage or require the use of renewable energy technologies, including solar water heaters. This urban shift towards sustainability is expected to create substantial opportunities for market players, as more consumers and developers seek to incorporate solar solutions into their projects.

    Technological Innovations

    Technological advancements play a significant role in shaping The Global Solar Water Heater Industry. Innovations in solar technology, such as improved photovoltaic cells and enhanced thermal storage systems, have led to more efficient and reliable solar water heaters. These advancements not only increase the efficiency of solar water heating systems but also reduce installation and maintenance costs. For example, the integration of smart technology allows users to monitor and control their systems remotely, optimizing energy use. Furthermore, the development of hybrid systems that combine solar with traditional energy sources offers flexibility and reliability, appealing to a broader consumer base. As technology continues to evolve, it is anticipated that the market will witness a surge in innovative products, further driving the adoption of solar water heaters.

    Government Incentives and Policies

    Supportive government policies and incentives are instrumental in propelling The Global Solar Water Heater Industry. Many governments worldwide are recognizing the importance of renewable energy in achieving sustainability goals and are implementing various programs to encourage the adoption of solar technologies. These initiatives often include tax credits, rebates, and grants for consumers who invest in solar water heating systems. Additionally, regulatory frameworks that mandate the use of renewable energy in new constructions are becoming more common. Such policies not only lower the initial investment barrier for consumers but also create a favorable market environment for solar water heater manufacturers. As these incentives continue to evolve, they are likely to stimulate market growth and enhance the overall attractiveness of solar water heating solutions.

    Market Segment Insights

    By Type: Thermosyphon (Largest) vs. Integral Collector Storage (Fastest-Growing)

    In The Global Solar Water Heater, the Thermosyphon segment stands out as the largest contributor, leveraging its efficient heat transfer capabilities and reliability. This segment's established presence is reflective of strong consumer preference, particularly in regions where thermal energy utilization is maximized. Conversely, the Integral Collector Storage (ICS) system is the fastest-growing segment, gaining traction due to its cost-effectiveness and simplicity in design, appealing especially to residential consumers seeking affordable solutions. The growth trends in the Type segment are influenced by increased awareness of renewable energy and sustainability practices. Thermosyphon systems continue to enjoy widespread adoption owing to their proven efficiency and low maintenance requirements, making them favorable in many climates. On the other hand, Integral Collector Storage systems are attracting significant interest as a viable alternative for off-grid applications, making solar water heaters more accessible and encouraging adoption in developing regions. This trend is expected to continue as technology advances and production costs decrease, fostering competitive growth in both segments.

    Thermosyphon (Dominant) vs. Integral Collector Storage (Emerging)

    Thermosyphon systems have long been a dominant player in The Global Solar Water Heater, renowned for their passive solar water heating capability. These systems perform exceptionally well in areas with steady sunlight, utilizing natural convection to circulate water without the need for pumps, thereby ensuring low operational costs. Their reputation for reliability and durability has solidified their market presence, especially in residential and commercial sectors. Meanwhile, Integral Collector Storage systems are considered an emerging alternative, featuring a design that combines storage and solar collection into a single unit. This innovation allows for easier installation and lower initial costs, appealing to budget-conscious consumers. As awareness of solar technologies grows, the ICS segment is expected to see increased adoption, particularly in new market territories.

    By Collector Type: Evacuated Tube Collector (Largest) vs. Flat Plate Collector (Fastest-Growing)

    The Global Solar Water Heater is primarily segmented into three collector types: Evacuated Tube Collectors, Flat Plate Collectors, and Unglazed Water Collectors. Among these, Evacuated Tube Collectors dominate the market due to their superior efficiency in low-light conditions and greater heat retention capabilities. Flat Plate Collectors, while growing rapidly, still hold a smaller share but are becoming increasingly favored in residential applications for their cost-effectiveness and simplicity in design. Conversely, Unglazed Water Collectors are primarily utilized in swimming pool heating rather than for potable water, which limits their overall market share.

    Collector Type: Evacuated Tube Collector (Dominant) vs. Flat Plate Collector (Emerging)

    Evacuated Tube Collectors are recognized for their high efficiency and ability to perform well in colder climates, making them the preferred choice for many commercial applications. They utilize a series of vacuum-sealed tubes, which significantly reduce heat loss compared to other types. In contrast, Flat Plate Collectors are gaining popularity as they offer a more economical solution for residential heating needs, boasting easier installation and maintenance. As renewable energy adoption increases, both technologies are expected to experience growth, yet Evacuated Tube Collectors will likely lead in more demanding environments.

    Get more detailed insights about Solar Water Heater Market

    Regional Insights

    By region, the study provides the market insights into North America, Europe, Asia-Pacific and Rest of the World. The Asia-Pacific market area will dominate this market, owing to a high demand for energy, including hot water, which can be met through the use of solar water heaters. In addition, warm and sunny climate, which is ideal for solar water heaters boost market growth in this region.

    Further, the major countries studied in the market report are The U.S., Canada, German, France, the UK, Italy, Spain, China, Japan, India, Australia, South Korea, and Brazil.

    Figure 2: Solar Water Heater Market Share By Region 2022 (%)

    Solar Water Heater Market Share By Region

    Source: Secondary Research, Primary Research, Market Research Future Database and Analyst Review

    Europe Solar Water Heater market accounts for the second-largest market share due to consumers awareness of the environmental benefits of renewable energy sources, such as solar water heaters. Further, the German Solar Water Heater market held the largest market share, and the UK Solar Water Heater market was the fastest growing market in the European region

    The North America Solar Water Heater Market is expected to grow at the fastest CAGR from 2023 to 2032. This is due to offering incentives and subsidies to promote the use of renewable energy sources, including solar water heaters. Moreover, Canadian Solar Water Heater market held the largest market share, and the US Solar Water Heater market was the fastest growing market in the North America region.

    For instance, American federal government offers a tax credit of up to 26% of the cost of a solar water heating system for residential and commercial properties. This credit is available until 2023. Also, Many states offer additional incentives for solar water heaters, such as rebates, tax credits, and performance-based incentives.

    Key Players and Competitive Insights

    Leading market players are investing heavily in research and development in order to expand their product lines, which will help the Solar Water Heater market, grow even more. Market participants are also undertaking a variety of strategic activities to expand their footprint, with important market developments including new product launches, contractual agreements, mergers and acquisitions, higher investments, and collaboration with other organizations. To expand and survive in a more competitive and rising market climate, Solar Water Heater industry must offer cost-effective items.

    Manufacturing locally to minimize operational costs is one of the key business tactics used by manufacturers in the Solar Water Heater industry to benefit clients and increase the market sector. In recent years, the Solar Water Heater industry has offered some of the most significant advantages. Major players in the Solar Water Heater market, including Rheem Manufacturing , A.O.Smith , SunTank , Bradford White Corporation, and others, are attempting to increase market demand by investing in research and development operations.

    Rheem Manufacturing Company is a leader in the manufacturing of heating, cooling, and water heating products. It was founded by brothers Richard and Donald Rheem in Emeryville, California. Today, Rheem is headquartered in Atlanta, Georgia, and has manufacturing facilities located throughout North America, South America, Europe, and Asia. Its product line includes a wide range of residential and commercial HVAC and water heating systems, including Water heaters, Air conditioners and heat pumps, Furnaces etc. It also committed to sustainability and has set goals to reduce its carbon footprint and promote energy efficiency.

    The company has received several awards and recognitions for its sustainability efforts, including the EPA's ENERGY STAR Partner of the Year Award.

    Bradford White Corporation is a leading manufacturer of water heating, space heating, and combination heating equipment for residential, commercial, and industrial applications. Its product line includes a variety of water heaters, including tankless, hybrid, and traditional storage tank models. It also offers a range of space heating and combination heating products, including boilers and volume water heaters. In addition, it offers a variety of accessories and replacement parts for their products. It offers a variety of resources and support for its products, including technical support, warranty information, and product registration.

    It has a reputation for quality and reliability, and their products are often used in commercial and industrial applications where reliability is critical.

    Key Companies in the Solar Water Heater Market market include

    Industry Developments

    October 2022: Tata power deployed solar power cell in a decentralized manner that it has several applications including lighting, heating, water filtration, and productivity. Solar lighting, for instance, negates the use of kerosene lamps and all hazards associated with them.

    June 2019: The Irish Government announced to retrofit around 500,000 homes to make them more energy efficient. The projected is expected to include renewable energy systems such as solar water heating panels, heat pumps, and solar photovoltaic panels.

    February 2019: Environmental Court to the State of Hawai’i upheld the mandate for the usage of solar water heaters. This decision of the court is expected to promote the environment and climate safety.

    Future Outlook

    Solar Water Heater Market Future Outlook

    The Global Solar Water Heater is projected to grow at a 7.41% CAGR from 2024 to 2035, driven by increasing energy costs, environmental regulations, and technological advancements.

    New opportunities lie in:

    • Expansion into emerging markets with tailored financing options
    • Development of hybrid systems integrating solar and conventional energy
    • Partnerships with construction firms for solar water heating installations

    By 2035, the market is expected to be robust, driven by innovation and strategic partnerships.

    Market Segmentation

    Solar Water Heater Market Type Outlook

    • Integral Collector Storage
    • Thermosyphon

    Solar Water Heater Market Collector Type Outlook

    • Evacuated Tube Collector
    • Flat Plate Collector
    • Unglazed Water Collector

    Report Scope

    MARKET SIZE 20244.35(USD Billion)
    MARKET SIZE 20254.672(USD Billion)
    MARKET SIZE 20359.551(USD Billion)
    COMPOUND ANNUAL GROWTH RATE (CAGR)7.41% (2024 - 2035)
    REPORT COVERAGERevenue Forecast, Competitive Landscape, Growth Factors, and Trends
    BASE YEAR2024
    Market Forecast Period2025 - 2035
    Historical Data2019 - 2024
    Market Forecast UnitsUSD Billion
    Key Companies ProfiledMarket analysis in progress
    Segments CoveredMarket segmentation analysis in progress
    Key Market OpportunitiesIntegration of smart technology enhances efficiency in The Global Solar Water Heater.
    Key Market DynamicsRising consumer demand for energy-efficient solutions drives innovation and competition in the solar water heater market.
    Countries CoveredNorth America, Europe, APAC, South America, MEA

    Market Highlights

    Author
    Priya Nagrale
    Senior Research Analyst

    With an experience of over five years in market research industry (Chemicals & Materials domain), I gather and analyze market data from diverse sources to produce results, which are then presented back to a client. Also, provide recommendations based on the findings. As a Senior Research Analyst, I perform quality checks (QC) for market estimations, QC for reports, and handle queries and work extensively on client customizations. Also, handle the responsibilities of client proposals, report planning, report finalization, and execution

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    FAQs

    How much is the Solar Water Heater market?

    The Solar Water Heater market size was valued at USD 4.01 Billion in 2023.

    What is the growth rate of the Solar Water Heater market?

    The market is projected to grow at a CAGR of 7.41% during the forecast period, 2024-2032.

    Which region held the largest market share in the Solar Water Heater market?

    Asia Pacific had the largest share in the market.

    Who are the key players in the Solar Water Heater market?

    The key players in the market are Rheem Manufacturing, A.O. Smith, SunTank, Bradford White Corporation, Bosch, Honeywell Corporation, Alternate energy Technologies, Viessmann Manufacturing, Racold, Wagner Solar

    Which type led the Solar Water Heater market?

    The Thermosyphon category dominated the market in 2022.

    Which collector type had the largest market share in the Solar Water Heater market?

    The Evacuated Tube Collector had the largest share in the market.

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