Spidercage

Background

Large-scale production of farmed salmon has made Norway a world leader in the field of aquaculture. The majority of potential production areas in Norway have already been put to use, and the industry is constantly facing new challenges. Our Spidercage project is intended to help resolve some of these challenges by making use of sites that are more exposed to wind and weather. At the same time, it will help avoid conflicts with other stakeholders, lessen the potential for fish escapes and reduce the intensity of sea lice infestations.

The project’s objectives

The project’s primary objective is to develop technology that can open the way for aquaculture in new and more exposed areas. By creating an environment with significantly less wave energy inside the net pen than in the external environment, it will be possible to make use of areas that are currently not feasible. This will play an important role in resolving the site-related challenges faced by the Norwegian aquaculture industry.

Development licences

The Norwegian Directorate of Fisheries has granted four development licences for the Spidercage project. Each of these licences is for a maximum allowable biomass (MAB) of 780 tonnes. Permission will be sought to install a large Spidercage facility, with a capacity of 3,120 tonnes of salmon, at a suitable site.

The concept

The Spidercage comprises a circular floating collar to which the net pen is attached. The floating collar is surrounded by a rigid wave-breaker. The movement of the collar can be controlled to some extent by means of passive heave compensation using several modulating hangings and a control system. The Spidercage is a semi-closed facility, and will aim to be almost energy neutral.

The project plan

To download the project plan and find more information about the Spidercage project, see button below.

History and milestones

Project organisation