About Solar Direct Drive Refrigeration System
In March 2010, the World Health Organization (WHO) prequalified the Solar Direct Drive, a refrigeration system which utilises the solar array to directly drive a compressor which cools or freezes a liquid (we now have different designs) which in turn cools the vaccine.
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About Solar Direct Drive Refrigeration System video introduction
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6 FAQs about [Solar Direct Drive Refrigeration System]
What is solar direct drive refrigeration?
Solar Direct Drive refrigeration systems are the new generation of solar powered refrigeration systems bypassing the use of a battery and charge controller. Instead the power is stored using different non battery based technologies.
What is solar direct drive?
Industry partner, Vestefrost, developed a 19.5 litre prototype unit utilising Solar Direct Drive technology. A unique feature of the technology is that the energy of the sun is stored in ice instead of in batteries. The equipment is powered by renewable energy from the sun collected via photovoltaic solar panels.
Does UNICEF provide supply and demand information on solar direct drive refrigerators?
This note provides revised supply and demand information on solar direct drive and mains powered cold chain refrigerators and freezers. From 2018, UNICEF includes procurement options for associated services for in-country delivery, installation, commissioning, and on-site training in usage and preventive maintenance. 1. Summary
What resources are available on solar direct drive systems?
Links to additional resources specifically on Solar Direct Drive Systems. Direct-drive solar vaccine refrigerators, a new choice for vaccine storage. Note: Users of this manual are invited to suggest additional resource materials, to add to this list.
How does solar-powered refrigeration work?
Solar-powered refrigeration equipment runs on electricity provided by solar energy. They are able to keep vaccines at their appropriate temperature, without the need for electricity from a national grid.
How much does Solar direct drive cost?
The estimated cost per unit is $USD 2500 but unlike absorption and solar powered battery units, there are no recurring costs after the initial investment in units utilising Solar Direct Drive technology. In Aden, Yemen, a boy holds up his vaccination card.


