based small business make hydropower cheaper. PNNL is helping Percheron evaluate using composite instead of steel to make screw-shaped turbines called Archimedes Hydrodynamic Screw turbines ...
A community group in Derby wants to install a specialist turbine using a river's energy to power nearby businesses. Darley Abbey Community Energy (DACE) is trying to secure funds for an Archimedes ...
Darley Community Energy (DCE) is trying to secure funds for an Archimedes screw - a type of turbine which enables water to flow through to a generator and provides renewable electricity - on the ...