Hydrodynamic Screw Generator
Screw Generators (Hydrodynamic screws) for Hydro Power generation schemes use an Archimedes Screw pump in the reverse. The water is not pumped up but water is released down the
Screw which acts as a turbine, extracting hydro energy from the falling water benefit from Hydro Power Feed-In Tariff levels for the year to 31st March 2012
Hydrodynamic Screw Generator
Screw Generators (Hydrodynamic screws) for Hydro Power generation schemes use an Archimedes Screw pump in the reverse. The water is not pumped up but water is released down the
Screw which acts as a turbine, extracting hydro energy from the falling water
The image above comprises of two Hydrodynamic Screw Generators, each being a Compact style screw.
This Hydro-dynamic screw generators are installed in series
with 2678 l/s flowing sequentially through the two screws over a total fall of around 10 meters, approximately 180 kW is generated (90 kW per screw generator).
Hydrodynamic Screw Generators or Screw Generators are used to generate electricity from the discharge flows from Sewage Treatment plants in UK and, the electricity generated can be transferred back into the mains grid.
Table of Hydro Power Feed-In Tariff levels for the year to 31st March 2012
This includes adjustments from the Fast-Track Review on 1st Aug 2011.
Complete listing of all
Hydro Energy Generation Tariff levels up to March 2012
Energy Source
Scale
Tariff (p/kWh)
Duration (years)
Hydro
≤15 kW
20.9
20
Hydro
>15 – 100kW
18.7
20
Hydro
>100kW – 2MW
11.5
20
Hydro
>2MW – 5MW
4.7
20
Hydro-dynamic Screw generators offer all the usual benefits associated with screw pumps including
- No complicated control system – the screw matches itself automatically to the supply frequency and the water supply.
- High efficiency is greater than comparable waterwheels and small turbines with flat stable curve.
- Minimum maintenance due to just 4 main components
- Robust, long wearing and trouble free parts and components.
- No fine screens needed with little or No cleaning required
- Highly friendly to fish acting as a fish pass.
- Minimal civil engineering needed in comparison to turbines.
In the modern climate where alternative “green” energy is very much in demand the
Hydrodynamic screw generator offers a simple reliable
and proven means of harnessing the
renewable hydro energy from the flowing, or falling water of low head hydro site
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