RAS farm cost
How much does a Recirculating Aquaculture System (RAS) farm cost to build and operate? Indicative CAPEX is $15,000–$25,000 per ton of annual production capacity, with OPEX of $3–6 per kg of fish harvested — driven by species, location, energy cost and automation level.
Indicative CAPEX
$15k–$25k / ton/year
OPEX
$3–$6 / kg harvested
Cost drivers
Species & density
Salmon and trout require deeper tanks, chillers and higher oxygenation than tilapia or shrimp.
Water reuse %
99% reuse RAS needs full biofilter, degasser, ozone/UV and oxygen cones; partial reuse is cheaper.
Energy cost
Pumping, oxygen and temperature control dominate OPEX — local kWh price is decisive.
Building shell
Insulated industrial shell vs. retrofit warehouse can swing CAPEX by 20–30%.
Automation level
Full PLC monitoring + AI feeding reduces labour but adds 8–15% to CAPEX.
Typical CAPEX by scale
Pilot / R&D (50–200 t/yr)
$1.5M – $5M
Often modular containerised RAS for species trials.
Commercial (500–2,000 t/yr)
$8M – $40M
Standard mid-size land-based farm, typically tilapia, sea bass or trout.
Industrial salmon (5,000–10,000 t/yr)
$120M – $250M+
Full salmon grow-out RAS with on-site processing, smolt and waste-water treatment.