100-Ton Annual RAS Fish Farm — Engineering & Investment Playbook
A neutral reference architecture for a 100 t/year indoor Recirculating Aquaculture System producing tilapia, trout, sea bass, barramundi or similar species — system stack, project stages, cost drivers, bankability questions and financing path.
Project assumptions
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Planning — foundational work still open, but structured RFQs feasible
- Energy plan: Grid connection secured
- CAPEX clarity: USD 2M–10M — mid commercial
- Sign a site option or lease for at least 20 years
- Commission water lab tests (salinity, TAN, iron, TDS) and file abstraction permit
- Engage local permitting consultant and file EIA scoping
- Secure at least one signed LOI from a processor or importer
Indicative execution readiness. Not a credit decision or engineering warranty.
System stack
Tanks & raceways
- • Nursery: 2–4 modular round tanks 20–50 m³ HDPE or fiberglass
- • Grow-out: 6–10 round or D-end tanks 80–150 m³
- • Central drain with settling cone and sloped floor
- • Total culture volume: ~1,000–1,500 m³
Mechanical filtration
- • Drum filters (40–60 µm) sized for 100–150% system flow
- • Foam fractionators / protein skimmers where needed
- • Solids thickener and sludge dewatering
Biological filtration
- • MBBR or fixed-bed biofilters sized for peak TAN load
- • Design point: 400–800 g TAN/m³ media/day
- • Optional denitrification for low-exchange operation
Oxygenation & CO₂ control
- • PSA oxygen generator with LOX backup
- • Low-head oxygenators or oxygen cones per tank
- • Degassers or cascade columns for CO₂ stripping
Water treatment & biosecurity
- • UV or ozone disinfection on makeup and recirculation loops
- • Segregated nursery / grow-out water systems
- • Foot baths, PPE zones, all-in/all-out biosecurity
Monitoring & control
- • Continuous DO, temp, pH, ORP, TAN, NO₂ probes
- • SCADA / PLC with mobile alarms
- • Backup sensors and manual sampling protocol
Energy & utilities
- • Specific energy: 3.5–5.5 kWh per kg fish produced
- • Standby generator for full life-support load
- • Heat pumps or heat recovery for temperature control
Project stages
- 1. FeasibilitySite, water, energy, market, permits, indicative CAPEX/OPEX. 4–6 weeks.
- 2. Concept & basic designMass balance, layout, equipment list, class-3 budget. 6–10 weeks.
- 3. RFQ & supplier selectionNeutral RFQ to project-matched vendors. 8–10 weeks.
- 4. Detailed engineeringP&IDs, electrical single-line, HVAC, controls. 8–12 weeks parallel with procurement.
- 5. Construction & installationCivil, tanks, piping, equipment, electrical, controls. 6–10 months.
- 6. Commissioning & biological start-upWater fill, biofilter maturation, first stocking, ramp-up. 2–4 months.
- 7. Steady-state operationFull production reached over 9–15 months post-commissioning.
Main CAPEX drivers
Indicative share of total installed cost. Actual split varies by region, redundancy, automation and civil scope.
| Civil works & building envelope | 20–30% |
| RAS equipment (filtration, biofilters, tanks, piping) | 28–38% |
| Oxygen generation & life support | 8–12% |
| Electrical, controls & SCADA | 8–12% |
| HVAC & heating | 6–10% |
| Engineering, permits & PM | 6–10% |
| Contingency (recommended) | 10–15% |
Bankability questions
- Is the water source characterized and is makeup reliably available year-round?
- Is grid electricity stable and is the tariff modeled for 10 years?
- Is there an offtake agreement or LOI with a processor or wholesaler?
- Is fingerling supply secured with at least two qualified hatcheries?
- Is a qualified operator identified with prior RAS experience?
- Are permits (environmental, water discharge, construction) achievable in the target timeline?
- Is CAPEX supported by class-3 estimates from at least two independent sources?
- Is OPEX modeled at pessimistic, base and optimistic scenarios (FCR, mortality, energy)?
- Is technical DD available for the RAS technology provider?
- Is financing (equity, senior debt, ECA, leasing) matched to cash-flow ramp-up?
Key project risks
- Biological ramp-up slower than plan (first 9–15 months usually under-produce).
- Energy price volatility hits profitability — hedge or model conservatively.
- Single points of failure in oxygen or power cause catastrophic losses without redundancy.
- Fingerling quality variability affects survival and growth — dual-source and screen.
- Discharge and biosecurity regulation can tighten — design for tomorrow's rules.
Common questions
Get the bankability brief — 100-Ton RAS Fish Farm
6-page investor-grade brief: CAPEX bands, OPEX assumptions, revenue model, sensitivity, risk register and a country permit map — tailored to this archetype. Free, sent to your inbox and printable to PDF.
Turn this 100-Ton RAS Fish Farm archetype into a real RFQ
FishMatch Group prepares a neutral, confidential brief based on the assumptions, system stack and cost drivers on this page — then matches you with 1–3 project-matched international suppliers or EPC partners. Supplier identities stay private until you approve them. Buyers never pay.
Answer a short guided form — species, capacity, site, timeline, budget range. Takes ~3 minutes. Fully confidential.
Our team screens project-matched providers globally and prepares a comparable, budget-grade RFQ package for each.
You receive shortlisted proposals with technical, commercial and financing terms — ready for board or lender review.
Confidential · Supplier-neutral · No buyer fees · Response within 1 business day