Water wheel systems
Up to 87,000kWh per year
Steffturbine is a micro hydroelectric turbine that delivers clean, ecologically sound operation, while hardly disturbing the natural environment.
It utilises an effluent outfall with a minimum flow rate of 250l/s, with a height differential from 2.5 to 5m.
The 12kw modular unit will generate power based on the potential created by the weight of water within the machine.
A land-based control system supplies power via an export meter to the national grid or site services.
A conveyor turbine is installed on an optimum incline of 30° which improves the capture of potential energy within the enclosed conveyor.
The Steffturbine functions as an overshot water wheel, since it is driven mainly by the potential energy of falling water and less by kinetic energy, as is the case with an undershot water wheel. The patented, conveyor-based concept is mainly suited to small-scale and micro hydroelectric power plants.
Steffturbine is positioned above the surface of the water, so that the ecosystem remains as pristine as possible, The large paddle volume allows smaller fish that have not been diverted by the rakes to pass unharmed through the turbine – a safe passage that is enhanced by the matched speeds of the turbine paddles and water throughflow. There are zero emissions (no CO2 released).
Requiring very limited structural intervention on site, Steffturbine has a very low installation cost (and time).
With 365-day, 24-hour operation and a continuous flow of water, annual production is 87,000 kWh (power for 20–25 households).