Cool Box

Gallery Cool Box 1
Gallery Cool Box 1
April 2021
Headquarters Maxwell Rd, Peterborough PE2 7JN, UK

Cool Box - Producing low-cost solar cooling for developing countries

The lack of cold chains (the sequence of measures needed to get food fresh and chilled from farm to fork) in many countries leads to large-scale loss of produce and quality, with significant impacts on rural and national incomes. Additionally, it makes food expensive in urban areas, which are becoming increasingly populous. 38% of food grown in Egypt and 48% of India's food suffer from this problem. The problem is the need for the food to be chilled on-farm as soon as it is harvested. This is difficult and expensive without mains electricity. Solar Polar's cooling modules don't need mains electricity to operate. The modules can operate both day and night due to a thermal energy storage component, have no moving parts, and provide cooling with zero carbon emissions, thus making enormous improvements to all concerned lives.

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Key features

  • Cooling without electricity - 100% reduction in CO2 emission cooling using solar over electrically driven alternative
  • No moving parts, little maintenance, a life in service of 30 years plus.
  • Uses only natural refrigerants, no greenhouse gasses
  • SP use a natural refrigerant and therefore avoids the use of hydrofluorocarbons (HFCs), which are powerful greenhouse gases, and of ozone-depleting chlorofluorocarbons (CFCs)
  • Reduction in food waste can give an Indian farmer a ten-fold increase in income and reduce greenhouse gas emissions from rotting food


  • Repayment time of 3 to 5 years dependent on the cost of electricity
  • Works in off-grid communities
  • Local manufacture brings jobs as well as cooling

Activity Region

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The information set out above, is solely for the purposes of information and the Solar Impulse Foundation does not provide any guarantee as to its authenticity, completeness or accuracy. This information does not constitute investment advice or a recommendation to buy into, transact or to enter into any agreement with any of the parties or persons mentioned above. Potential investors or interested parties are solely responsible for their investment or business decisions and for performing any due diligence required by the circumstances.