Scottish renewables firm to make flat pack water wheel for developing world

News

Carruthers Renewables, a Perth based engineering firm behind a fundamentally new type of water wheel, has joined forces with the Strathclyde University’s Advanced Forming Research Centre (AFRC)  to scale up production of its technology for the developing world.

Invented by former maths lecturer turned civil engineer, Penelope Carruthers, the Carruthers wheel is the first waterwheel to be patented in 138 years. Unlike traditional water wheels (which operate at a constant speed) the Carruthers wheel uses specially designed blades to operate with high efficiency at a range of water speeds and flows.

According to Carruthers, this enables it to produce electricity from waterfalls and rivers with less than five metres drop, opening up potential applications in a vast range of sites that would previously have been considered unviable for water wheels. The technology has been validated in trials at Abertay University, with results published in the proceedings of the Institute of Civil Engineers (ICE)

Under the new one-year £250k project, funded by the Department for International Development (DFID) and the Engineering and Physical Sciences Research Council (EPSRC), Carruthers is working with the AFRC to identify the most cost effective and sustainable way of making the wheels.

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