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Reduced carbon footprint and feed production

In our production CO2 from the fish respiration is captured and recycled back through the fish feed. This eliminates CO2 emissions from the fish farm. The captured CO2 is converted to proteins used in the feed, replacing e.g., soy protein. The captured CO2 from the fish represent 0.6 Kg per Kg of fish. In addition, the emission from soy production and transportation equates to about 1.6 kg CO2 per kg round fish [1]. The total carbon savings by this concept is 2.2 kg CO2 per kg fish. Preliminary calculations demonstrates that about 30% of the fish feed can be made from recycling the carbon, with an estimated reduction of carbon footprint of 40% over traditional farming. 

[1] SINTEF Report



The EFC concept will make land-based fish farming an environmentally friendly and sustainable part of the “green shift”, while safeguarding the fish's welfare and consumers' food security. To achieve this goal, new solutions have been developed and are now about to be verified.


The processes of EFC and G2F use  both oxygen and hydrogen. This will be supplied through decomposing water by means of electrolysis. Being attached to the Norwegian EL-grid supplying renewable hydropower we can produce these input factors emission free. In contrast to other concepts of green hydrogen usage, the EFC concept will utilize both the oxygen and the hydrogen saving even further on energy.


EFC RAS systems is unique in that each tank is self-sustained, and all water recycling is within the individual tank. By operating each tank isolated, it avoids transferring problems in one tank and impacting the other fish tanks.

Further the RAS system use minimal water and thus reduce the exposure to external sea water minimizing the risk for diseases and parasites. On shore fish farming

eliminate salmon escapes.


EFC land-based fish farming combined with G2F protein production can produce the same amount of food (fish) on an area which is 700 times smaller than e.g., soy production. Further, such production will not use arable land, and can be considered an additional production of food on shore, having minimal impact on biodiversity. Both processes consumes small amounts of water use.

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