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    Reports and Publications

    CEESD and GlobalResolve have started demonstration of twig light in two communities in Ghana – Dormeabra and Akawli in  Asante Akim and Yilo Krobo district respectively. The device, invented by Michael Pugliese of Arizona State University, consists of a thin thermoelectric generator sandwiched  between a heat source and a heat sink. The heat sink is connected to cold water while the heat source is connected to burning coal or charcoal. The temperature difference created by the heat source and the heat sink provides power that drives the generator. The device is able to generate 5 volts of electricity which is enough to power LEDs and enough to light a room. Several prototypes of the twig light have been demonstrated at Dormeabra and Akawli. Most participants said they would buy a twig light if it fell within the range Gh¢ 10 – 15. A few quoted Gh¢ 5 as an affordable price for the twig light.  Kingsford Agyekuma, a teacher at Dormeabra Junior High School, suggested the development of supports for the twig light. He also asked the designers to develop materials capable of conserving heat for longer periods.

    About Us

    The Centre for Energy, Environment, and Sustainable Development (CEESD) is a non-for-profit organisation devoted to technologies that offer engineering solutions to global challenges such as climate change, energy poverty, environmental degradation, and pollution on local communities in Ghana and Africa.

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