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Swedish Solar Air System Saves Energy in Cold Climates | 2026 Research - News and Statistics

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Mar 9, 2026

Swedish Air-Based Solar System Cuts Building Heating Demand by Up to 16%

According to a report from pv magazine, researchers from Sweden’s KTH Royal Institute of Technology have developed an air-based photovoltaic-thermal system designed for buildings in cold climates. The system was tested on a prototype installed in an apartment building in Stockholm.

The technology uses a modified solar panel with an air channel to draw in ambient air. The system is intended to preheat ventilation air and the cold-water supply for domestic hot water. Continuous measurements were taken from the prototype over a 42-day summer period, and the resulting data was used to validate simulation models.

Using these validated models, the research team simulated the system’s performance in a building containing 56 apartments. The analysis considered operations for preheating domestic hot water in summer and preheating incoming ventilation air for the rest of the year. Simulations were also run for other Swedish locations to assess climatic effects.

The findings indicate the system can reduce annual district heating demand for ventilation by up to 16% and for domestic hot water by up to 7%. It also reduces peak heating demand for hot water by an average of 11% over a season, with reductions exceeding 50% on certain days. The system was noted to be capable of significantly raising the temperature of incoming ventilation air on sunny winter days.

Ventilation energy savings were consistent across different climates in Sweden, though the system’s ability to reduce frost formation was less effective in northern areas. The inclination of the panels had minimal impact on performance. The research team plans to expand their work to evaluate the technology in warmer regions for solar cooling potential and to conduct an economic analysis.

The study was published in the journal Applied Thermal Engineering. Contributors included scientists from KTH Royal Institute of Technology, along with companies Bravida Holding and Uponor.

  1. 1. INTRODUCTION

    Making Data-Driven Decisions to Grow Your Business

    1. REPORT DESCRIPTION
    2. RESEARCH METHODOLOGY AND THE AI PLATFORM
    3. DATA-DRIVEN DECISIONS FOR YOUR BUSINESS
    4. GLOSSARY AND SPECIFIC TERMS
  2. 2. EXECUTIVE SUMMARY

    A Quick Overview of Market Performance

    1. KEY FINDINGS
    2. MARKET TRENDS This Chapter is Available Only for the Professional EditionPRO
  3. 3. MARKET OVERVIEW

    Understanding the Current State of The Market and its Prospects

    1. MARKET SIZE: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
    2. CONSUMPTION BY COUNTRY: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
    3. MARKET FORECAST TO 2035
  4. 4. MOST PROMISING PRODUCTS FOR DIVERSIFICATION

    Finding New Products to Diversify Your Business

    1. TOP PRODUCTS TO DIVERSIFY YOUR BUSINESS
    2. BEST-SELLING PRODUCTS
    3. MOST CONSUMED PRODUCTS
    4. MOST TRADED PRODUCTS
    5. MOST PROFITABLE PRODUCTS FOR EXPORT
  5. 5. MOST PROMISING SUPPLYING COUNTRIES

    Choosing the Best Countries to Establish Your Sustainable Supply Chain

    1. TOP COUNTRIES TO SOURCE YOUR PRODUCT
    2. TOP PRODUCING COUNTRIES
    3. TOP EXPORTING COUNTRIES
    4. LOW-COST EXPORTING COUNTRIES
  6. 6. MOST PROMISING OVERSEAS MARKETS

    Choosing the Best Countries to Boost Your Export

    1. TOP OVERSEAS MARKETS FOR EXPORTING YOUR PRODUCT
    2. TOP CONSUMING MARKETS
    3. UNSATURATED MARKETS
    4. TOP IMPORTING MARKETS
    5. MOST PROFITABLE MARKETS
  7. 7. PRODUCTION

    The Latest Trends and Insights into The Industry

    1. PRODUCTION VOLUME AND VALUE: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
    2. PRODUCTION BY COUNTRY: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
  8. 8. IMPORTS

    The Largest Import Supplying Countries

    1. IMPORTS: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
    2. IMPORTS BY COUNTRY: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
    3. IMPORT PRICES BY COUNTRY: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
  9. 9. EXPORTS

    The Largest Destinations for Exports

    1. EXPORTS: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
    2. EXPORTS BY COUNTRY: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
    3. EXPORT PRICES BY COUNTRY: HISTORICAL DATA (2012–2025) AND FORECAST (2026–2035)
  10. 10. PROFILES OF MAJOR PRODUCERS

    The Largest Producers on The Market and Their Profiles

  11. 11. COUNTRY PROFILES

    The Largest Markets And Their Profiles

    This Chapter is Available Only for the Professional Edition PRO
    1. 11.1

      United States

      • Market Size
      • Production
      • Imports
      • Exports
    2. 11.2

      China

      • Market Size
      • Production
      • Imports
      • Exports
    3. 11.3

      Japan

      • Market Size
      • Production
      • Imports
      • Exports
    4. 11.4

      Germany

      • Market Size
      • Production
      • Imports
      • Exports
    5. 11.5

      United Kingdom

      • Market Size
      • Production
      • Imports
      • Exports
    6. 11.6

      France

      • Market Size
      • Production
      • Imports
      • Exports
    7. 11.7

      Brazil

      • Market Size
      • Production
      • Imports
      • Exports
    8. 11.8

      Italy

      • Market Size
      • Production
      • Imports
      • Exports
    9. 11.9

      Russian Federation

      • Market Size
      • Production
      • Imports
      • Exports
    10. 11.10

      India

      • Market Size
      • Production
      • Imports
      • Exports
    11. 11.11

      Canada

      • Market Size
      • Production
      • Imports
      • Exports
    12. 11.12

      Australia

      • Market Size
      • Production
      • Imports
      • Exports
    13. 11.13

      Republic of Korea

      • Market Size
      • Production
      • Imports
      • Exports
    14. 11.14

      Spain

      • Market Size
      • Production
      • Imports
      • Exports
    15. 11.15

      Mexico

      • Market Size
      • Production
      • Imports
      • Exports
    16. 11.16

      Indonesia

      • Market Size
      • Production
      • Imports
      • Exports
    17. 11.17

      Netherlands

      • Market Size
      • Production
      • Imports
      • Exports
    18. 11.18

      Turkey

      • Market Size
      • Production
      • Imports
      • Exports
    19. 11.19

      Saudi Arabia

      • Market Size
      • Production
      • Imports
      • Exports
    20. 11.20

      Switzerland

      • Market Size
      • Production
      • Imports
      • Exports
    21. 11.21

      Sweden

      • Market Size
      • Production
      • Imports
      • Exports
    22. 11.22

      Nigeria

      • Market Size
      • Production
      • Imports
      • Exports
    23. 11.23

      Poland

      • Market Size
      • Production
      • Imports
      • Exports
    24. 11.24

      Belgium

      • Market Size
      • Production
      • Imports
      • Exports
    25. 11.25

      Argentina

      • Market Size
      • Production
      • Imports
      • Exports
    26. 11.26

      Norway

      • Market Size
      • Production
      • Imports
      • Exports
    27. 11.27

      Austria

      • Market Size
      • Production
      • Imports
      • Exports
    28. 11.28

      Thailand

      • Market Size
      • Production
      • Imports
      • Exports
    29. 11.29

      United Arab Emirates

      • Market Size
      • Production
      • Imports
      • Exports
    30. 11.30

      Colombia

      • Market Size
      • Production
      • Imports
      • Exports
    31. 11.31

      Denmark

      • Market Size
      • Production
      • Imports
      • Exports
    32. 11.32

      South Africa

      • Market Size
      • Production
      • Imports
      • Exports
    33. 11.33

      Malaysia

      • Market Size
      • Production
      • Imports
      • Exports
    34. 11.34

      Israel

      • Market Size
      • Production
      • Imports
      • Exports
    35. 11.35

      Singapore

      • Market Size
      • Production
      • Imports
      • Exports
    36. 11.36

      Egypt

      • Market Size
      • Production
      • Imports
      • Exports
    37. 11.37

      Philippines

      • Market Size
      • Production
      • Imports
      • Exports
    38. 11.38

      Finland

      • Market Size
      • Production
      • Imports
      • Exports
    39. 11.39

      Chile

      • Market Size
      • Production
      • Imports
      • Exports
    40. 11.40

      Ireland

      • Market Size
      • Production
      • Imports
      • Exports
    41. 11.41

      Pakistan

      • Market Size
      • Production
      • Imports
      • Exports
    42. 11.42

      Greece

      • Market Size
      • Production
      • Imports
      • Exports
    43. 11.43

      Portugal

      • Market Size
      • Production
      • Imports
      • Exports
    44. 11.44

      Kazakhstan

      • Market Size
      • Production
      • Imports
      • Exports
    45. 11.45

      Algeria

      • Market Size
      • Production
      • Imports
      • Exports
    46. 11.46

      Czech Republic

      • Market Size
      • Production
      • Imports
      • Exports
    47. 11.47

      Qatar

      • Market Size
      • Production
      • Imports
      • Exports
    48. 11.48

      Peru

      • Market Size
      • Production
      • Imports
      • Exports
    49. 11.49

      Romania

      • Market Size
      • Production
      • Imports
      • Exports
    50. 11.50

      Vietnam

      • Market Size
      • Production
      • Imports
      • Exports
  12. LIST OF TABLES

    1. Key Findings In 2025
    2. Market Volume, In Physical Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    3. Market Value: Historical Data (2012–2025) and Forecast (2026–2035)
    4. Per Capita Consumption, by Country, 2022–2025
    5. Production, In Physical Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    6. Imports, In Physical Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    7. Imports, In Value Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    8. Import Prices, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    9. Exports, In Physical Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    10. Exports, In Value Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    11. Export Prices, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
  13. LIST OF FIGURES

    1. Market Volume, In Physical Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    2. Market Value: Historical Data (2012–2025) and Forecast (2026–2035)
    3. Consumption, by Country, 2025
    4. Market Volume Forecast to 2035
    5. Market Value Forecast to 2035
    6. Market Size and Growth, By Product
    7. Average Per Capita Consumption, By Product
    8. Exports and Growth, By Product
    9. Export Prices and Growth, By Product
    10. Production Volume and Growth
    11. Exports and Growth
    12. Export Prices and Growth
    13. Market Size and Growth
    14. Per Capita Consumption
    15. Imports and Growth
    16. Import Prices
    17. Production, In Physical Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    18. Production, In Value Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    19. Production, by Country, 2025
    20. Production, In Physical Terms, by Country: Historical Data (2012–2025) and Forecast (2026–2035)
    21. Imports, In Physical Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    22. Imports, In Value Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    23. Imports, In Physical Terms, By Country, 2025
    24. Imports, In Physical Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    25. Imports, In Value Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    26. Import Prices, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    27. Exports, In Physical Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    28. Exports, In Value Terms: Historical Data (2012–2025) and Forecast (2026–2035)
    29. Exports, In Physical Terms, By Country, 2025
    30. Exports, In Physical Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    31. Exports, In Value Terms, By Country: Historical Data (2012–2025) and Forecast (2026–2035)
    32. Export Prices, By Country: Historical Data (2012–2025) and Forecast (2026–2035)