Thermal Energy Storage Market - Global Industry Size, Share, Trends, Opportunity, and Forecast, Segmented By Technology, By Storage Material, By Application, By End User, By Region & Competition, 2021-2031F

Description

The Global Thermal Energy Storage Market is anticipated to expand from USD 21.67 Billion in 2025 to USD 38.08 Billion by 2031, reflecting a 9.85% compound annual growth rate. This technology captures and retains thermal energy-such as heat or cold-within mediums like water or molten salts for future use, successfully separating energy production from consumption. The market's advancement is heavily fueled by the growing need to seamlessly integrate dependable renewable energy and the pressing goal of reducing carbon emissions in industrial heating. Because solar and wind power are inherently intermittent, thermal storage acts as an essential buffer to guarantee uninterrupted electricity. In fact, the Long Duration Energy Storage Council reported that operational thermal storage capacity worldwide exceeded 7 gigawatts in 2025.

Market Overview
Forecast Period	2027-2031
Market Size 2025	USD 21.67 Billion
Market Size 2031	USD 38.08 Billion
CAGR 2026-2031	9.85%
Fastest Growing Segment	Latent Heat Storage
Largest Market	Europe

Even with these robust drivers, the market's growth is notably impeded by steep upfront capital costs. The massive preliminary investments needed to engineer and construct these large-scale facilities discourage prospective investors. Consequently, this financial barrier considerably hinders widespread commercial implementation, particularly throughout emerging economies.

Market Driver

The increasing incorporation of renewable energy stands as a major force propelling the Global Thermal Energy Storage Market. With the power industry transitioning toward fluctuating sources such as solar and wind, grid managers increasingly depend on robust buffering systems. Thermal technologies absorb excess renewable power, storing it as heat within substances like molten salts to be used later for industrial heating or electricity generation, thereby guaranteeing a steady energy supply. Highlighting this trend, a March 2026 article in Renewable Energy Magazine titled 'Long Duration Energy Storage Installations Grow 49 Percent in 2025' noted that thermal storage made up 33 percent of all long duration energy deployments. By counteracting the unpredictable nature of renewables, these storage methods deliver the essential flexibility needed for reliable grid management.

The growing number of concentrated solar power initiatives also drives the widespread adoption of thermal energy storage. These facilities concentrate solar rays to warm a transfer fluid, a design that naturally integrates with thermal storage systems. This combination turns solar energy into a readily available power source that can continue to generate electricity even when the sun goes down. Acknowledging this impact, the American Society of Mechanical Engineers reported in October 2025, within the publication 'Concentrating Solar Thermal Power in China', that solar tower projects incorporating thermal storage accounted for 71 percent of the pipeline. Furthermore, SolarPACES noted that the total number of connected concentrated solar power facilities in China reached 27 in 2025. Such advancements highlight the indispensable function of thermal storage in contemporary utility infrastructure.

Market Challenge

Exorbitant initial capital costs pose a significant financial hurdle that actively limits the growth of the Global Thermal Energy Storage Market. Constructing these extensive facilities demands tremendous preliminary spending on specialized components, tailored engineering processes, and land procurement. Such immense expenses substantially increase the financial risks for utility firms and project developers. As a result, numerous investors are reluctant to finance thermal storage ventures, particularly when evaluated against other energy investments that demand less upfront capital.

This formidable financial obstacle restricts widespread commercialization, prominently in developing nations where budgets for infrastructure are strictly limited. The necessity for massive initial funding extends the time required for project approvals and frequently causes delays in planned deployments. Reflecting this challenge, the International Renewable Energy Agency reported in 2025 that the average global installation cost for thermal storage technologies, including solid state and molten salt, was USD 238 per kilowatt hour. Such steep baseline expenses stretch out the return on investment period, confining market activity to well-capitalized entities and slowing down the overall pace of global implementation.

Market Trends

The transition toward decentralized district heating and cooling networks is reshaping the market by enhancing thermal regulation throughout urban environments. These interconnected configurations collect leftover heat from nearby facilities and channel it into residential neighborhoods. By incorporating thermal storage into these grids, local governments can effectively manage seasonal energy fluctuations and decrease their dependence on fossil fuels, turning traditional infrastructure into interactive energy systems. Supporting this evolution, an April 2026 article by the European Commission, titled 'Heat highways and thermal storage take centre stage at Linz District Heating Forum 2026', highlighted that 39 percent of district heating and cooling networks are electrified. The continuous expansion of these networks presents a massive opportunity for technology deployment.

Transforming retired fossil fuel power stations into thermal storage sites is expanding the market by taking advantage of established grid infrastructure. Closed power plants offer valuable remaining physical assets, such as turbines and transmission connections. Upgrading these locations by swapping out old combustion boilers for modern storage units significantly reduces the upfront capital barriers associated with brand-new installations. This approach not only speeds up project timelines but also breathes new life into stranded utility properties. Demonstrating this strategy, a December 2025 Repower publication, 'Newsletter Number 4 Full Steam Ahead to 2026', reported the successful launch of a 1000 megawatt hour coal power and molten salt energy storage project in Suzhou China. Capitalizing on legacy infrastructure in this way facilitates rapid global market growth.

Key Market Players

BrightSource Energy Inc.
Aalborg CSP AS
Abengoa SA
AMSTED Industries Incorporated
Burns & McDonnell
SaltX Technology Holding AB
Terrafore Technologies LLC
Trane Technologies PLC
SR Energy
Vantaan Energia Oy

Report Scope

In this report, the Global Thermal Energy Storage Market has been segmented into the following categories, in addition to the industry trends which have also been detailed below:

Thermal Energy Storage Market, By Technology

Sensible Heat Storage
Latent Heat Storage
Thermochemical Storage

Thermal Energy Storage Market, By Storage Material

Water
Molten Salts
Phase Change Materials
Others

Thermal Energy Storage Market, By Application

Power generation
District Heating & Cooling
Process Heating & Cooling

Thermal Energy Storage Market, By End User

Utilities
Commercial
Industrial
Residential

Thermal Energy Storage Market, By Region

North America
- United States
- Canada
- Mexico
Europe
- France
- United Kingdom
- Italy
- Germany
- Spain
Asia Pacific
- China
- India
- Japan
- Australia
- South Korea
South America
- Brazil
- Argentina
- Colombia
Middle East & Africa
- South Africa
- Saudi Arabia
- UAE

Competitive Landscape

Company Profiles: Detailed analysis of the major companies present in the Global Thermal Energy Storage Market.

Available Customizations:

Global Thermal Energy Storage Market report with the given market data, TechSci Research offers customizations according to a company's specific needs. The following customization options are available for the report:

1. Product Overview

1.1. Market Definition
1.2. Scope of the Market
- 1.2.1. Markets Covered
- 1.2.2. Years Considered for Study
- 1.2.3. Key Market Segmentations

2. Research Methodology

2.1. Objective of the Study
2.2. Baseline Methodology
2.3. Key Industry Partners
2.4. Major Association and Secondary Sources
2.5. Forecasting Methodology
2.6. Data Triangulation & Validation
2.7. Assumptions and Limitations

3. Executive Summary

3.1. Overview of the Market
3.2. Overview of Key Market Segmentations
3.3. Overview of Key Market Players
3.4. Overview of Key Regions/Countries
3.5. Overview of Market Drivers, Challenges, Trends

4. Voice of Customer

5. Global Thermal Energy Storage Market Outlook

5.1. Market Size & Forecast
- 5.1.1. By Value
5.2. Market Share & Forecast
- 5.2.1. By Technology (Sensible Heat Storage, Latent Heat Storage, Thermochemical Storage)
- 5.2.2. By Storage Material (Water, Molten Salts, Phase Change Materials, Others)
- 5.2.3. By Application (Power generation, District Heating & Cooling, Process Heating & Cooling)
- 5.2.4. By End User (Utilities, Commercial, Industrial, Residential)
- 5.2.5. By Region
- 5.2.6. By Company (2025)
5.3. Market Map

6. North America Thermal Energy Storage Market Outlook

6.1. Market Size & Forecast
- 6.1.1. By Value
6.2. Market Share & Forecast
- 6.2.1. By Technology
- 6.2.2. By Storage Material
- 6.2.3. By Application
- 6.2.4. By End User
- 6.2.5. By Country
6.3. North America: Country Analysis
- 6.3.1. United States Thermal Energy Storage Market Outlook
  - 6.3.1.1. Market Size & Forecast
    - 6.3.1.1.1. By Value
  - 6.3.1.2. Market Share & Forecast
    - 6.3.1.2.1. By Technology
    - 6.3.1.2.2. By Storage Material
    - 6.3.1.2.3. By Application
    - 6.3.1.2.4. By End User
- 6.3.2. Canada Thermal Energy Storage Market Outlook
  - 6.3.2.1. Market Size & Forecast
    - 6.3.2.1.1. By Value
  - 6.3.2.2. Market Share & Forecast
    - 6.3.2.2.1. By Technology
    - 6.3.2.2.2. By Storage Material
    - 6.3.2.2.3. By Application
    - 6.3.2.2.4. By End User
- 6.3.3. Mexico Thermal Energy Storage Market Outlook
  - 6.3.3.1. Market Size & Forecast
    - 6.3.3.1.1. By Value
  - 6.3.3.2. Market Share & Forecast
    - 6.3.3.2.1. By Technology
    - 6.3.3.2.2. By Storage Material
    - 6.3.3.2.3. By Application
    - 6.3.3.2.4. By End User

7. Europe Thermal Energy Storage Market Outlook

7.1. Market Size & Forecast
- 7.1.1. By Value
7.2. Market Share & Forecast
- 7.2.1. By Technology
- 7.2.2. By Storage Material
- 7.2.3. By Application
- 7.2.4. By End User
- 7.2.5. By Country
7.3. Europe: Country Analysis
- 7.3.1. Germany Thermal Energy Storage Market Outlook
  - 7.3.1.1. Market Size & Forecast
    - 7.3.1.1.1. By Value
  - 7.3.1.2. Market Share & Forecast
    - 7.3.1.2.1. By Technology
    - 7.3.1.2.2. By Storage Material
    - 7.3.1.2.3. By Application
    - 7.3.1.2.4. By End User
- 7.3.2. France Thermal Energy Storage Market Outlook
  - 7.3.2.1. Market Size & Forecast
    - 7.3.2.1.1. By Value
  - 7.3.2.2. Market Share & Forecast
    - 7.3.2.2.1. By Technology
    - 7.3.2.2.2. By Storage Material
    - 7.3.2.2.3. By Application
    - 7.3.2.2.4. By End User
- 7.3.3. United Kingdom Thermal Energy Storage Market Outlook
  - 7.3.3.1. Market Size & Forecast
    - 7.3.3.1.1. By Value
  - 7.3.3.2. Market Share & Forecast
    - 7.3.3.2.1. By Technology
    - 7.3.3.2.2. By Storage Material
    - 7.3.3.2.3. By Application
    - 7.3.3.2.4. By End User
- 7.3.4. Italy Thermal Energy Storage Market Outlook
  - 7.3.4.1. Market Size & Forecast
    - 7.3.4.1.1. By Value
  - 7.3.4.2. Market Share & Forecast
    - 7.3.4.2.1. By Technology
    - 7.3.4.2.2. By Storage Material
    - 7.3.4.2.3. By Application
    - 7.3.4.2.4. By End User
- 7.3.5. Spain Thermal Energy Storage Market Outlook
  - 7.3.5.1. Market Size & Forecast
    - 7.3.5.1.1. By Value
  - 7.3.5.2. Market Share & Forecast
    - 7.3.5.2.1. By Technology
    - 7.3.5.2.2. By Storage Material
    - 7.3.5.2.3. By Application
    - 7.3.5.2.4. By End User

8. Asia Pacific Thermal Energy Storage Market Outlook

8.1. Market Size & Forecast
- 8.1.1. By Value
8.2. Market Share & Forecast
- 8.2.1. By Technology
- 8.2.2. By Storage Material
- 8.2.3. By Application
- 8.2.4. By End User
- 8.2.5. By Country
8.3. Asia Pacific: Country Analysis
- 8.3.1. China Thermal Energy Storage Market Outlook
  - 8.3.1.1. Market Size & Forecast
    - 8.3.1.1.1. By Value
  - 8.3.1.2. Market Share & Forecast
    - 8.3.1.2.1. By Technology
    - 8.3.1.2.2. By Storage Material
    - 8.3.1.2.3. By Application
    - 8.3.1.2.4. By End User
- 8.3.2. India Thermal Energy Storage Market Outlook
  - 8.3.2.1. Market Size & Forecast
    - 8.3.2.1.1. By Value
  - 8.3.2.2. Market Share & Forecast
    - 8.3.2.2.1. By Technology
    - 8.3.2.2.2. By Storage Material
    - 8.3.2.2.3. By Application
    - 8.3.2.2.4. By End User
- 8.3.3. Japan Thermal Energy Storage Market Outlook
  - 8.3.3.1. Market Size & Forecast
    - 8.3.3.1.1. By Value
  - 8.3.3.2. Market Share & Forecast
    - 8.3.3.2.1. By Technology
    - 8.3.3.2.2. By Storage Material
    - 8.3.3.2.3. By Application
    - 8.3.3.2.4. By End User
- 8.3.4. South Korea Thermal Energy Storage Market Outlook
  - 8.3.4.1. Market Size & Forecast
    - 8.3.4.1.1. By Value
  - 8.3.4.2. Market Share & Forecast
    - 8.3.4.2.1. By Technology
    - 8.3.4.2.2. By Storage Material
    - 8.3.4.2.3. By Application
    - 8.3.4.2.4. By End User
- 8.3.5. Australia Thermal Energy Storage Market Outlook
  - 8.3.5.1. Market Size & Forecast
    - 8.3.5.1.1. By Value
  - 8.3.5.2. Market Share & Forecast
    - 8.3.5.2.1. By Technology
    - 8.3.5.2.2. By Storage Material
    - 8.3.5.2.3. By Application
    - 8.3.5.2.4. By End User

9. Middle East & Africa Thermal Energy Storage Market Outlook

9.1. Market Size & Forecast
- 9.1.1. By Value
9.2. Market Share & Forecast
- 9.2.1. By Technology
- 9.2.2. By Storage Material
- 9.2.3. By Application
- 9.2.4. By End User
- 9.2.5. By Country
9.3. Middle East & Africa: Country Analysis
- 9.3.1. Saudi Arabia Thermal Energy Storage Market Outlook
  - 9.3.1.1. Market Size & Forecast
    - 9.3.1.1.1. By Value
  - 9.3.1.2. Market Share & Forecast
    - 9.3.1.2.1. By Technology
    - 9.3.1.2.2. By Storage Material
    - 9.3.1.2.3. By Application
    - 9.3.1.2.4. By End User
- 9.3.2. UAE Thermal Energy Storage Market Outlook
  - 9.3.2.1. Market Size & Forecast
    - 9.3.2.1.1. By Value
  - 9.3.2.2. Market Share & Forecast
    - 9.3.2.2.1. By Technology
    - 9.3.2.2.2. By Storage Material
    - 9.3.2.2.3. By Application
    - 9.3.2.2.4. By End User
- 9.3.3. South Africa Thermal Energy Storage Market Outlook
  - 9.3.3.1. Market Size & Forecast
    - 9.3.3.1.1. By Value
  - 9.3.3.2. Market Share & Forecast
    - 9.3.3.2.1. By Technology
    - 9.3.3.2.2. By Storage Material
    - 9.3.3.2.3. By Application
    - 9.3.3.2.4. By End User

10. South America Thermal Energy Storage Market Outlook

10.1. Market Size & Forecast
- 10.1.1. By Value
10.2. Market Share & Forecast
- 10.2.1. By Technology
- 10.2.2. By Storage Material
- 10.2.3. By Application
- 10.2.4. By End User
- 10.2.5. By Country
10.3. South America: Country Analysis
- 10.3.1. Brazil Thermal Energy Storage Market Outlook
  - 10.3.1.1. Market Size & Forecast
    - 10.3.1.1.1. By Value
  - 10.3.1.2. Market Share & Forecast
    - 10.3.1.2.1. By Technology
    - 10.3.1.2.2. By Storage Material
    - 10.3.1.2.3. By Application
    - 10.3.1.2.4. By End User
- 10.3.2. Colombia Thermal Energy Storage Market Outlook
  - 10.3.2.1. Market Size & Forecast
    - 10.3.2.1.1. By Value
  - 10.3.2.2. Market Share & Forecast
    - 10.3.2.2.1. By Technology
    - 10.3.2.2.2. By Storage Material
    - 10.3.2.2.3. By Application
    - 10.3.2.2.4. By End User
- 10.3.3. Argentina Thermal Energy Storage Market Outlook
  - 10.3.3.1. Market Size & Forecast
    - 10.3.3.1.1. By Value
  - 10.3.3.2. Market Share & Forecast
    - 10.3.3.2.1. By Technology
    - 10.3.3.2.2. By Storage Material
    - 10.3.3.2.3. By Application
    - 10.3.3.2.4. By End User

11. Market Dynamics

11.1. Drivers
11.2. Challenges

12. Market Trends & Developments

12.1. Merger & Acquisition (If Any)
12.2. Product Launches (If Any)
12.3. Recent Developments

13. Global Thermal Energy Storage Market: SWOT Analysis

14. Porter's Five Forces Analysis

14.1. Competition in the Industry
14.2. Potential of New Entrants
14.3. Power of Suppliers
14.4. Power of Customers
14.5. Threat of Substitute Products

15. Competitive Landscape

15.1. BrightSource Energy Inc.
- 15.1.1. Business Overview
- 15.1.2. Products & Services
- 15.1.3. Recent Developments
- 15.1.4. Key Personnel
- 15.1.5. SWOT Analysis
15.2. Aalborg CSP AS
15.3. Abengoa SA
15.4. AMSTED Industries Incorporated
15.5. Burns & McDonnell
15.6. SaltX Technology Holding AB
15.7. Terrafore Technologies LLC
15.8. Trane Technologies PLC
15.9. SR Energy
15.10. Vantaan Energia Oy