TEL DeltaStream

The DetaStream was a tidal turbine developed by Tital Energy Ltd. It was primarily designed to be located on the seabed in areas with high tidal stream flows, but could also be installed in suitable rivers and estuaries. When mounted in tidal areas it was able to generate power during both the flow and ebb of the tide. The expected final scale of the device was conceptualized at a 1.2 MW capacity with three turbine heads on each frame. However, following unsuccessful tests of a 400 kW prototype in 2015, Tidal Energy Ltd abandoned the development of this device. The 400 kW prototype weighed 200 tons, with a frame 16 m long and a height of 18 m.

Technology Developer

Tidal Energy Ltd

Device Status

Is the device actively being developed or is available for purchase (active)? Or has development or support ended (inactive)?

Inactive

Technology Type

Axial Flow Turbine

Power Take-Off

Mechanism that converts the motion of the prime mover into a useful form of energy such as electricity, learn more

Direct Drive Generator

Max Rated Power Capacity

The maximum amount of electricity that can be produced by the device, as rated by the manufacturer.

400 KW

Surface Expression

False

Estimated TRL

Estimated Technology Readiness Level scale from 1 to 9 with 9 being the most mature technology

TRL Last updated: 21 April 2022

7

Energy Resource

Tidal
Riverine

Water Column Position

Last Modified

5 June 2025

Projects Using TEL DeltaStream

Citation Formats

“TEL DeltaStream.” Marine Energy Projects Database: Devices, PRIMRE, United States Department of Energy, https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/TEL_DeltaStream. Accessed <day> <monthRoman> <year>.

Marine Energy Projects Database: Devices. <year>. "TEL DeltaStream." Accessed <monthRoman> <day>, <year>. https://openei.org/wiki/PRIMRE/Databases/Projects_Database/Devices/TEL_DeltaStream.

PRIMRE/Databases/Projects Database/Devices/TEL DeltaStream

TEL DeltaStream

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