DeltaStream Concept
The DeltaStream device is a nominal 1.2MW unit which sits on the seabed without the need for a positive anchoring system, generating electricity from three separate horizontal axis turbines mounted on a common frame.
The use of three turbines on a single, circa 30m wide, triangular frame produces a low centre of gravity enabling the device to satisfy its structural stability requirements including the avoidance of overturning and sliding.
DeltaStream was conceived by Marine Engineer Richard Ayre with initial research funding from Pembrokeshire Coast National Park Marine Nature Reserve. Experts from Cranfield University in England undertook detailed design and optimisation of the blade design with funding from Carbon Connections.
DeltaStream uses the same concept as a wind turbine together with ship propeller technology. The benefits of this design include:
- Lightweight gravity foundation
- Easy to manufacture
- Easy to deploy and recover
- Easy to maintain
- Low cost
- Operates in varied water depth and velocity
- Avoids shipping
- Low environmental impact
The device will save substantial amounts of CO2 by the direct replacement of the electrical energy from fossil fuels or the growth requirement from a renewable resource.
Click here to download a PDF of full spec sheet