
Flower power —
The Sunflower Solar Harvester, being developed by the Swiss company Airlight Energy, tracks the sun like a sunflower and cools itself by pumping water through its veins like a plant. In the process, it produces heat, desalinated water, and refrigeration from the 12kW of energy it produces with just 10 hours of sunlight.

Flower power —
At the core of the technology are IBM-designed water-cooled solar panels whose microchannels carry away the heat produced by the reflector mirrors. The flower-like array of reflectors concentrate the sun's energy more than 2000 times onto the six panels which each hold 25 photovoltaic chips.

Flower power —
Developers say that it needs just a quarter of the panels to produce the same amount of power as conventional systems. Everything about its design is aimed at bringing down costs; what would normally require large and expensive solar mirrors is achieved with metallized foil of the type found in food packaging like potato chips.
Flower power —
The system produces around 20kW of thermal power from 10 hours of sunlight, enough say the developers to power a low-temperature desalinator in coastal regions.

Flower power —
Aimed at off-grid communities in arid and remote regions, the all-in-one system -- whose components can be transported in a single container and reassembled in situ - has been in development for more than two years but a 32-mirror commercial version could be on sale as early as mid-2017.

An artist's impression shows how the components could be packed into a shipping container and transported to off-grid locations.


