In their 2021 annual report, Norwegian salmon farmer Salmon Evolution evaluated their progress utilising their hybrid flow-through system (HFS), which more recently has been installed at their facility in Indre Harøy.
The company's HFS technology is designed to ensure access of fresh, filtered sweater while reducing energy consumption by reducing approximately 65 percent of water. Reusing 65 percent of water balances both cost and operational risk; reusing higher levels of water would require more filtration and water treatment whilst reusing lower levels result in higher energy costs. By optimising water quality parameters, time to harvesting is reduced from 16 to 11 months.
In keeping with Salmon Evolution's commitment to sustainability and circularity, water is filtered and collected, and then transported to a recirculation plant where it is converted to fertiliser, biogas, or other. Additionally, by producing fish on land, the company is reducing emissions associated with importing fish via air travel.
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Image credit: Salmon Evolution |
Other steps Salmon Evolution have taken towards reducing the environmental impact of fish farming include their green power supply agreement with Statkraft, which took place last year. The agreement outlines 100 percent renewable energy for the Indre Harøy facility. This can be read about further, HERE.
"As our company now approaches commercial operations, our customers can be 100 percent certain that our salmon is produced with the lowest possible environmental footprint, setting a new benchmark for sustainably produced salmon," says Salmon Evolution CEO Mr. Håkon André Berg.
Having this energy efficient system in place at Indre Harøy has secured the company a grant of up to NOK 96.8m from Enova, owned by the Norwegian Ministry of Climate and Enivronment to promote environmentally friendly production.
At the Indre Harøy facility, seawater intake utilises two intake pipes measuring at 25m and 95m. Water intake is further filtered and treated with UV to eliminate any parasites, sea lice, viruses and particles, so that there is a flow of clean seawater into fish tanks.
Construction of the facility began back in May 2020, with construction in the first half of 2021 focusing on production facilities and the assembly of fish tanks. Salmon Evolution had their first smolt release in March of this year, which can be read about HERE.
For more information on Salmon Evolution visit their website, HERE.
The Aquaculturists
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