Doro–C Power Plant

Technical details

Doro-c

Technology

Turbine:

doro-turbine

Output per Container:

35kW (depending on location)

Frequency:

50Hz

Inspection:

network label 7

Size:

container: 6 x 2,5 x 3 metres ( L x W x H )
base plate: 7 x 4,7 x 0,4 metres ( L x W x H )

weight:

10 tons

Contactor type:

automatically controlled single contactor

Bar screen type:

coarse screen to be cleaned manually

Weir:

rigid weir without bottom outlet

Life span:

15 years, after which the power plant can be examined at the factory and reprocessed to be put back into operation at a new or the same location.

The doro-C hydropower plant is the first plug-and-play hydropower plant
used to tap potential in the ultra-low head range
- i.e. drop heights below 3 metres.

This is possible thanks to the doro turbine, a double rotary turbine developed in-house.
This uses the hydrostatic pressure of the water and converts it highly efficiently into
rotational energy through moving blades.

Doro-Turbine

Potentials

For ecological and cost reasons, it is not always and everywhere possible to implement massive damming measures to realise higher heads. In many developed countries, this potential is even almost exhausted. The waterwheel-like design with the operating principle of hydrostatic pressure allows an easy integration into existing downslope structures. Unlike a Kaplan turbine, there are no cavitation problems, which is why no overburden and thus no cost-intensive civil engineering is necessary. The doro turbine thus makes it possible to economically develop potentials with a head of less than 3m.

All these features of the doro turbine make it possible to install it in a sea container without losing efficiency. The compact design of the turbine also makes it possible to install all other necessary components such as power electronics, control and contactor, inlet, etc. in the container. The resulting doro-C hydropower plant is easy to transport, and the installation effort is minimal. Due to the large blade chambers and the low rotation speed, the doro turbine used is fish- and sediment-passing – downstream. For this reason, there is no need for a strainer rack, which reduces costs as well as maintenance.