Tytlandsvik Aqua has gradually increased production. The post-smolt facility is now prepared for full capacity utilization. Everything has gone according to plan, which is rare," says Project Director Roger Viga.


"We have gradually tested the system with reduced biomass and the equipment works according to plan. We are now preparing for full utilization; the next batch, up to 100 per cent utilization, is scheduled for the 2nd quarter of 2020," Viga says.

This means a production capacity of 3000 tonnes of fish per year.

In the long term, the plan is to increase production capacity to 10,000 tonnes - adding four new halls with four tanks each. The water is extracted from wells and reused after being filtered for particles, purified for CO2, aerated and fed with new oxygen.

8500 kg feed per day
Tytlandsvik Aqua is built with recycling technology (RAS). All process equipment is provided by AKVA group.

"We started planning in 2014 and everything has gone according to plan. Which is rare," says Project Director Roger Viga.

The post-smolt facility is built with the latest recycling technology. The tanks are 20.5 meters in diameter and over 5.5 meters deep, and the plant has a price tag of around 320 MNOK.

"The RAS system has a feeding capacity of 8500 kg feed per day," Project Manager Gade says.

The first construction phase of Tytlandsvik Aqua consists of two separate halls - with a total of eight tanks - with a production capacity of 3000 tonnes of large smolt for delivery to fish farmers, mainly in Rogaland. The first batch started on January 1st, 2019.

Fast process
"We started with 50 per cent capacity utilization to make sure everything worked as planned - increased to 70 per cent utilization - and we have now produced 5 batches without any problems. We are en route," says Viga.

Construction time was very fast, according to Project Manager at AKVA group Land Based AS, Troels Gade.

"From the building was raised until biomass was introduced it took about 5 months. It was done in record time which we are very pleased with - considering the size of the facility. At most we were 40 people from AKVA group at the same time to finalize the facility for production," Gade says.

The post-smolt facility in Ryfylke in Norway has several smart solutions.

"We have developed some new solutions; a special lime system to adjust the pH value in the water, a salt system that can add salt to the water and a new type of FTC (Fish Tank Cleaner). In the process, we have also acquired useful knowledge in how to optimize both design, logistics and the procurement process for even smoother project execution," says Gade.

Tytlandsvik Aqua AS is located in Hjelmeland municipality in Rogaland, Norway, and is owned by Bremnes Seashore AS, Grieg Seafood Rogaland AS and Vesthavbruk AS with three equal parts.

Facts Tytlandsvik Aqua per March 2020

  • Tank size: 1905 m3
  • Number of tanks: 8
  • Total volume: 15,240 m3
  • Max biomass: 1 142 000 kg
  • Average power consumption, RAS: 493 kW/h
  • Technology: ZWC (Zero Water Change)