Clean Technology (CleanTech) Market Report 2026

The clean technology (cleantech) market size has grown rapidly in recent years. It will grow from $837.53 billion in 2025 to $927.42 billion in 2026 at a compound annual growth rate (CAGR) of 10.7%. The growth in the historic period can be attributed to government incentives for renewable energy adoption, rising awareness of environmental sustainability, growth in industrial energy efficiency initiatives, early deployment of energy storage technologies, adoption of wastewater and solid waste management solutions.

The clean technology (cleantech) market size is expected to see rapid growth in the next few years. It will grow to $1.38 trillion in 2030 at a compound annual growth rate (CAGR) of 10.5%. The growth in the forecast period can be attributed to expansion of hydrogen and renewable gas technologies, increasing adoption of precision and controlled environment agriculture, growth in sustainable aquaculture and vertical farming, rising investment in air quality monitoring and emission control, advancements in smart water management and desalination technologies. Major trends in the forecast period include rising adoption of solar photovoltaic technologies, increasing deployment of wind energy systems, expansion of lithium-ion and flow battery energy storage, growing implementation of smart grids and energy management systems, advancements in carbon capture, utilization, and storage (ccus) solutions.

The growing integration of renewable energy sources is expected to drive the growth of the clean technology (CleanTech) market in the coming years. Renewable energy sources are naturally replenished forms of energy, such as solar, wind, and hydropower, that provide sustainable alternatives to fossil fuels. The expansion of renewable energy adoption is driven by concerns related to climate change and the need to reduce emissions, encouraging a transition from fossil fuels to cleaner energy options such as solar, wind, and hydropower. CleanTech facilitates the efficient integration of renewable energy sources by offering advanced technologies and smart infrastructure that optimize energy generation, storage, and distribution across the power grid. For instance, in March 2025, Eurostat, a Luxembourg-based statistical authority, reported that in 2024, renewable energy sources accounted for 47% of net electricity generation in the European Union, reflecting a significant increase compared to previous years and underscoring the rapid adoption of clean energy across the region. Therefore, the increasing integration of renewable energy sources is contributing to the expansion of the clean technology (CleanTech) market.

Leading companies in the clean technology (CleanTech) market are focusing on adopting innovation-support initiatives such as accelerator programs to nurture startups, drive sustainable solutions, and accelerate the adoption of green technologies. Accelerator programs are fixed-term, cohort-based initiatives that offer startups mentorship, resources, and funding to help them scale rapidly. For instance, in January 2025, FedTech, a U.S.-based venture firm, launched the Four Corners Cleantech Accelerator. This program aims to foster clean energy innovation across Arizona, Colorado, New Mexico, and Utah. It provides a structured series of workshops covering business modeling and cleantech commercialization, as well as tailored advisory services for established businesses, including support on IP, market strategies, and pitching. The program emphasizes inclusivity, focusing on underserved entrepreneurs and promoting collaboration with national laboratories and industry experts.

In December 2024, Alternus Clean Energy Inc., a U.S.-based renewable energy company, acquired LiiON for an undisclosed amount. This acquisition is part of Alternus Clean Energy's strategy to enhance its energy storage capabilities, expand its market reach, and accelerate long-term growth by providing more comprehensive and sustainable energy solutions. LiiON, LLC is a U.S.-based technology company specializing in renewable and stored energy solutions.

Major companies operating in the clean technology (cleantech) market are Tesla Inc, Veolia Environnement S.A., LG Chem Ltd, Schneider Electric SE, Mitsubishi Electric Corporation, Honeywell International, ABB Ltd, NextEra Energy Inc, Johnson Controls International, Orsted A/S, Enel Green Power, First Solar Inc, Enphase Energy Inc, Siemens Gamesa Renewable Energy, SunPower Corporation, Ballard Power Systems Inc, Adani Group, e-Zinc Inc, ACE Green Recycling Inc, Ørsted Energy A/S.

North America was the largest region in the clean technology (CleanTech) market in 2025. Asia-Pacific is expected to be the fastest-growing region in the forecast period. The regions covered in the clean technology (cleantech) market report are Asia-Pacific, South East Asia, Western Europe, Eastern Europe, North America, South America, Middle East, Africa. The countries covered in the clean technology (cleantech) market report are Australia, Brazil, China, France, Germany, India, Indonesia, Japan, Taiwan, Russia, South Korea, UK, USA, Canada, Italy, Spain.

The clean technology (CleanTech) market includes revenues earned by entities by providing services such as energy auditing, sustainability consulting, installation of renewable energy systems, waste management and recycling services, and green building design and construction. The market value includes the value of related goods sold by the service provider or included within the service offering. The clean technology (CleanTech) market also consists of sales of products including battery storage solutions, water purification systems, electric vehicles (EVs), wind turbines, solar panels, and energy-efficient appliances. Values in this market are ‘factory gate’ values, that is, the value of goods sold by the manufacturers or creators of the goods, whether to other entities (including downstream manufacturers, wholesalers, distributors, and retailers) or directly to end customers. The value of goods in this market includes related services sold by the creators of the goods.

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.

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