Subsea Riser Products (SRP) has secured a contract to deliver a modified version of its Rocksteady product for Minesto's Deep Green tidal energy power plant.

SRP expects to deliver the product in the first quarter of 2017. A modified version of Rocksteady is a bottom joint system dimensioned for Minesto’s requirements.

The bottom joint functions as a locking mechanism between Deep Green’s tether and the seabed foundation.

One part of the device is integrated in the seabed foundation and the other to the tether.

An automatic locking device will join together both the parts. The integration solution decreases the cost of installation, service and maintenance compared to other solutions.

The ordered device will also feature a subsea bearing, which has full mobility. It will also cope with the high loads that take place when the subsea tidal kite moves in its eight-shaped track.

Minesto CEO Martin Edlund said: "With Rocksteady, we get a product that is fully offshore certified, built for a service life of at least 25 years, while the design of the system allows for cost-effective operation and maintenance.

"We have recently recruited expertise from the offshore sector that gives us valuable knowledge and experience in the further development of Deep Green. With our new supplier agreement with SRP, we have access to the same kind of skills also in the supply chain, which of course is positive."

In May 2015, Minesto secured a €13m investment from the European Regional Development Fund via the Welsh European Funding Office, for the commercial rollout of Deep Green.