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Light, Energy, Refrigeration 

Koolboks  created an  affordable off-grid   solution  that is able to generate continuous refrigeration for up to 4 days ,even in the absence of power and limited sunlight. And this we did by storing energy in the form of ice , rather than in just  batteries. 


The unit can function as a refrigerator or as a freezer. It can also function as a source of lighting for house holds and shops.  

It is meant specifically for offgrid areas. 


It comes with 2 LED lighting bulbs  and USB ports for charging mobile phones.

Light, Energy, Refrigeration 
Pay- As- You- Go 

No one should be deprived of refrigeration because of cost.


Koolboks with its innovative embedded paygo technology is able to offer distributors the opportunity to be able to offer the Koolhome freezers on a lease to own to their customers.


Thanks to Koolboks, individuals and shop owners are able to pay in small monthly or weekly installments to own a solar refrigerator. 

Koolboks is currently integrated with Aganza, Paygee and  Solaris. 


PAYG Device

Energy Storage

Energy Storage

We created Ice compartments  in the refrigerator cabinets. So that during the day, when the sun is available ,which is often the case in Africa, Ice is made in these compartments . 


And at  night, when the sun  is no longer available , energy switches internally to the ice, maintaining the temperature of the cabinet  till the next day when  the sun is available again. 

Thanks to this technology we 've been  able to  bring down the cost of owning an offgrid solar refrigerator by  close  to 40%.


Integrated Lithium

Koolboks compliment Ice batteries with integrated Lithium-ion batteries.

The lithium batteries are integrated in the freezer giving you a single compact system devoid of messy cables. 

Lithium batteries provide an ideal solution for renewable energy storag.  Their  chemistry is often superior to its alternative chemistries, such as lead batteries.

Lithium-ion batteries have  high energy density, low maintenance, performance and longevity, and versatility.

Integrated Lithium

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