Innovative techniques for installation

We know that noise related to the driving of monopiles is the main cause of disturbance of the harbour porpoise. As such, we will explore various innovative noise-mitigating techniques for the installation of the monopiles.

For example, we will utilise an alternative method in which we will drive piles with a vibro hammer using vibrations. In addition, at 3 foundations, we will test an innovative method in which the vibro hammer is supported by ‘jetting’. Jetting is a technique that uses water jets to ensure that the monopile faces less resistance from the soil during the installation. This reduces the probability that a conventional pile-driver, which makes a lot of noise, is needed.