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SolarisKit solar collectors: Heating water with clean solar energy

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Water can be warmed with solar energy, a source that can replace gas and wood-burning stoves that produce harmful emissions like carbon dioxide. This People Fixing the World video from BBC World Service shares how mechanical engineer Dr Faisal Ghani is inventing ways to heat water without polluting our air and heating our planet.

Ghani’s team at SolarisKit aims to decarbonize water heating in the global south. Their prism shaped solar collectors are flat-packed for easy transport, can be assembled in under a half hour, and are designed with components that can be repaired, reused, and recycled.

“In some of the hottest parts of the world it can be hard to find hot water. So a lot of people don’t think that people in a sunny, warm climate have any hot water needs but actually what you find is that people don’t want to have a shower because they don’t have access to hot water. So that obviously impacts hygiene levels, also cleaning dishes and also laundering clothes…”


How does it work? From SolarisKit’s site:

“1. Sunlight enters the SolarisKit solar collector through its side panels made from high transmission solar glass

2. The absorber inside the SolarisKit solar collector absorbs solar radiation and converts it into heat, increasing its temperature (up to 80 degrees C)

3. Water (or similar) is circulated through the solar collector via the bottom inlet fitting, normally with a small pump

4. As water circulated through the solar collector, it is heated and exits the collector through the outlet fitting and voilΓ , carbon free hot water!”

Learn more about how the company has installed 60 solar energy-capturing prisms at five sites in Rwanda, providing regular hot showers for families, as well as saving them time and money.

“My hope for the future,” Ghani shares, “is if we’re able to unlock the potential of solar energy we can drastically improve quality of life for millions of people. We can obviously make significant reductions in global carbon emissions as well.”


Watch these resourceful related videos next:
β€’ How to make a Moser Lamp: 60 watts of free, natural light
β€’Β Solar panel walls that can recycle and heat greywater
β€’Β Cook food using the sun’s heat: Build a solar oven
β€’ The Solar Grandmothers of Ambakivao, Madagascar
β€’ Using seawater and sunlight to grow sustainable food in the desert
β€’ Geothermal energy in Iceland
β€’Β How are scientists harvesting water from thin air?
β€’ Stanford Solar Car Project: Racing on Sunshine, a documentary


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