Automotive Thermoelectric Generator Market Size - By Material, By Vehicle, By Application, By Sales Channel, Analysis, Share, Growth Forecast, 2025 - 2034

Automotive Thermoelectric Generator Market Size

The global automotive thermoelectric generator market was valued at USD 289.6 million in 2024 and is projected to grow at a CAGR of 10.8% between 2025 and 2034. The increasing costs of fuel and strict government policies concerning vehicle emissions have accelerated the demand for technologies that reduce fuel wastage. Automotive thermoelectric generators (ATEGs) overcome heat losses in an electrical system by applying thermoelectric cooling on the exhaust.
 

ATEGs assist greatly in trimming both the automakers and the customer’s fuel expenses. This is especially encouraging for car manufacturers and buyers who wish to cut down on operational costs and carbon emissions. In addition, ATEGs are gradually becoming a potential option for automakers. This is to comply with the international fuel efficiency standards and not compromise on the vehicle performance.

Governments across the globe are setting up stricter limitations on vehicle emissions in order to address global issues like pollution and climate change. However, other regions, as an example, Europe and North America, have particularly put a cap on CO? emissions, requiring companies to implement advanced solutions such as ATEGs in their automotive. ATEGs enable the electrical motors to operate without emitting significant carbon and also help ensure efficient energy usage in the automobile. Such changes have been quickly made available with the help of governmental grants and tax cuts for adopting eco-friendly fuels, making the ATEG more popular.
 

The surge in the use of both hybrid and electric cars contributes greatly to the growth of the ATEG marketplace. As with other electrical devices, hybrid and electric vehicles also require an efficient and advanced energy management system to maximize the performance and the range of the battery.
 

ATEGs act as an enabler by allowing the waste heat generated in the vehicle to be converted into electrical energy, which in this case can either be used for aiding the charging of the battery or for auxiliary systems. This helps in enhancing the range of electric vehicles while also improving energy efficiency. Restrictions on the use of ICE engines in favor of electric vehicles are part of the important policies, and with rising global EV sales as well as government initiatives around vehicle electrification, the need for ATEG systems in such vehicles will increase.
 

Automotive Thermoelectric Generator Market Trends

Across the globe, new advancements are being made in these TES or thermal energy systems, especially ATEGs, as there is a large movement underway to help transition local as well as hybrid vehicles. ATEGs specifically are integrated into these vehicles and hybrid electrical cars to mitigate the cost on the battery in recharging. By converting waste heat into electrical power, ATEGs reduce the load on the battery, therefore increasing the overall range of the vehicle.
 

Many countries are coming up with plans and policies to motivate the use of EVs, which in turn increases the need for ATEGs and other advanced energy systems. There is considerable innovation in Europe due to strict emission regulations and high levels of EV usage and adoption.
 

Automakers are focusing on smaller ATEGs to accommodate the current market, which is driving the development of more efficient vehicles. These ATEGs, which can be easily embedded into contemporary cars, are now possible to make due to advances in material engineering and miniaturization methodologies. However, such systems ease the expansion and weight burden of vehicles, thus improving their overall performance.
 

ATEGs, which are being developed for automotive applications, become commercially viable as they achieve greater conversion efficiency and high thermal stability. Moreover, R&D moves towards automated production of computer-advanced materials so that a commercial mass-nano polymer modifier is developed, which enables ATEGs to shift from the game of components to systems.
 

Automotive Thermoelectric Generator Market Analysis

Based on vehicle, the market is segmented into passenger cars, commercial vehicles and hybrid & electric vehicles. In 2024, the passenger cars segment accounted for over 57% of the automotive thermoelectric generator market share and is expected to exceed USD 420 million by 2034, due to their sheer production volume and increasing demand for fuel-efficient technologies.
 

• The volume of passenger cars produced is the largest worldwide; hence, ATEGs are considered primarily for this kind of vehicle. The consumer market is now more than ever becoming conscious of emissions and fuel consumption due to the increased fuel hikes and heightened environmental perspectives. ATEGs can mitigate high fuel economy effects by utilizing the waste heat from the vehicle’s exhaust to generate electrical energy to run auxiliary equipment such as climate control and infotainment, thus increasing fuel efficiency.
   
• The proliferation of emission control legislation, particularly in North America and Europe, will compel makers of passenger cars with ATEGs to comply and conform. Cost pressures moderate in premium and luxury classes of vehicles and so further foster ATEG deployment in this segment.

Based on the sales channel, the automotive thermoelectric generator market is divided into OEM and aftermarket. The OEM segment held around 73% of the market share in 2024.
 

• The primary reason for this achievement is that OEMs have the resources to directly integrate ATEGs into vehicles through production during the manufacturing process and so enhance the performance of the car without any integration issues later.
   
• Moreover, OEMs cater to bulk demand from automakers practically reduces per-unit production costs, unlocking the prospect for mass adoption of the technology. The growth of OEMs can also be attributed to their long-term contracts with automobile manufacturers, and their penetrative strategy acknowledges thermoelectric technologies within newer models of vehicles, ensuring a consistent supply chain.

In 2024, the U.S. region accounted for a automotive thermoelectric generator market share of over 86% and is expected to exceed USD 150 million by 2034.
 

• The growth of the market in the country can be attributed to the presence of stringent fuel efficiency and emission regulations, such as the Corporate Average Fuel Economy (CAFE) standards.
   
• These policies tend to force automotive manufacturers to include advanced energy technologies, such as the ATEG, which is favored in high-end vehicles. The US is also a center for major ATEG providers; thus, the R&D regarding thermoelectric gadgets and automotive innovation is spurred.
   
• The EU is introducing policies that target automakers around the globe with emission restrictions that will constrict their possibilities of developing ATEGs, which are significant when it comes to implementing innovative technologies.
   
• Major automotive companies focused on implementing ATEGs, including but not limited to BMW, Mercedes-Benz, and Volkswagen, have headquarters in Germany, France, and the UK.
   
• China, Japan, South Korea, and India stand out in terms of their share in this development. China, the largest automotive market in the world, is placing great emphasis on the application of technologies such as vehicle waste heat recovery systems with the aim to reach energy efficiency targets and pollution control.
   
• Japan and South Korea, the focal points for Toyota, Honda, and Hyundai, are leaders in implementing ATEG systems in hybrid and electric vehicles. Notably, initiatives by the government encouraging eco-friendly transport vehicles, alongside an increase in consumer consciousness concerning energy efficiency and emission reduction, are boosting the ATEG market in this region.
   

Automotive Thermoelectric Generator Market Share

• Faurecia and Valeo benevolently acquired more than 31% of the market share in the market of automotive thermoelectric generators during the year 2024.
   
• Technologies, on the other hand, that focused on energy efficiency and reduction of emissions were also developed such as new exhaust systems and waste heat recovery technologies. This was a key area where Faurecia focused to ensure they are positioned at the intersection of the integration of ATEGs into the automobile industry.
   
• Valeo's expertise in thermals and powertrain configurations has allowed the company to adapt its thermoelectric automotive solutions which are in high demand for the growing hybrid and electric cars.
   
• The positioning of their manufactures enables both companies to have R&D potential in various parts of the world.
   

Automotive Thermoelectric Generator Market Companies

Major players operating in the automotive thermoelectric generator industry are:

• Alphabet Energy
• European Thermodynamics
• Faurecia
• Gentherm Incorporated
• II-VI Marlow
• KELK Ltd.
• Laird Thermal Systems
• Valeo
   

The Automotive Thermoelectric Generator (TEG) Market is becoming challenging as key players aim to meet the needs of the growing market for energy-efficient and sustainable technologies in the Automotive Sector. Engineering automakers are turning to advanced thermoelectric technologies capable of converting waste heat from internal combustion engines into electrical power. This adds up to the ongoing competition of lowering the emissions of fossil-fuel-based vehicles as well as increasing their fuel efficacy. These systems are especially advantageous for use under hybrid and electric vehicles, EVs, where energy use is essential.
 

Prominent participants are channeling significant resources towards research and development to enhance the thermoelectric elements and devices’ performance and applicability. Their designs at an engineering level present novel nanostructured semiconducting materials and technologies that increase efficiency but ensure the safety and reliability of the system in high-temperature conditions. This increasing applicability of TEG technology, coupled with the high competitive capabilities of the global companies geared towards increasing profitability, is fostering innovation.
 

Automotive Thermoelectric Generator Industry News

• December 2024 saw Stellantis partner with Infineon Technologies AG to work on improving the power architecture Stellantis will be using in their upcoming line of vehicles. The Stellantis – Infineon relationship focuses on the integration of smart power switches as well as the use of silicon carbide semiconductors to improve electric vehicle performance and management.
   
• Volkswagen formed an important mega partnership with the electric vehicle manufacture Rivian Automotive in the month of June 2024. Volkswagen E invested USD 1 billion with Rivian alongside setting aside up to 5 billion US dollars for the purposes of building the software development together. With this collaboration it is aimed that Rivian’s software capabilities are fully utilised to solve Volkswagens software problems while strengthening its position in the US SUV pickup truck markets.
   
• A photovoltaic panoramic sunroof for passenger vehicles was presented in March 2024 by AGC Automotive Europe. This modern accessory involves the integration of high-efficiency solar cells including TOPCon, HJT or xBC into a glass-glass structure without the use of a roller blind system. The primary purpose for this design is to improve energy efficiency as well as sustainability in modern automobiles.
   

The automotive thermoelectric generator market research report includes in-depth coverage of the industry with estimates & forecasts in terms of revenue ($ Mn/Bn) & shipment (Units) from 2021 to 2034, for the following segments:

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Market, By Material

• Bismuth telluride
• Lead telluride
• Silicon germanium
• Others

Market, By Vehicle

• Passenger cars
• Commercial vehicles
• Hybrid and electric vehicles

Market, By Application

• Waste heat recovery
• Power generation
• Battery management

Market, By Sales Channel

• OEM
• Aftermarket

The above information is provided for the following regions and countries:

• North America
  • U.S.
  • Canada
• Europe
  • UK
  • Germany
  • France
  • Italy
  • Spain
  • Russia
  • Nordics
• Asia Pacific
  • China
  • India
  • Japan
  • South Korea
  • ANZ
  • Southeast Asia
• Latin America
  • Brazil
  • Mexico
  • Argentina
• MEA
  • UAE
  • Saudi Arabia
  • South Africa