Vendor Teardown 09 — Pricing Offer + Red Flags
Source: 07_pricing_offer.pdf — Green Jungle offer for "Association 3" dated 12.03.2026
The headline number
€ 82 583.92 total, exclusive of VAT (assumed).
Breakdown by category
| Category | € | % of total |
|---|---|---|
| HVAC (UCHA60 + UCHA24 ducted + 4 cheap splits) | 17 330.00 | 21.0 % |
| Lighting (24 × 800 W top + 36 × 120 W inter + 24 × 50 W veg + 12 × 30 W clone + 14 × UVC) | 15 596.00 | 18.9 % |
| Sensors & controls (Growlink kits × 5 rooms) | 11 345.88 | 13.7 % |
| Water treatment (RO + nanobubble + permeate tank) | 9 898.00 | 12.0 % |
| Tables & drainage | 7 322.00 | 8.9 % |
| Dehumidification | 7 160.00 | 8.7 % |
| Control cabinet / electric switchboard (incl. Siemens software) | 5 450.00 | 6.6 % |
| Irrigation (Autogrow IntelliDose + Peripod M4 + tanks) | 4 989.04 | 6.0 % |
| Extras (HVAC mounting hardware, 30 % discount) | 1 560.00 | 1.9 % |
| Fans (air circulation) | 1 501.00 | 1.8 % |
| Humidifier (wheeled ultrasonic) | 900.00 | 1.1 % |
| Bolts, wires, cable trays | (covered by vendor) | 0.0 % |
| Drippers + irrigation pipes | (not included — buy locally) | — |
| TOTAL | 82 583.92 | 100 % |
What's in the number
Every line in the pricing offer PDF has been mapped to the nine vendor-teardown documents (01–08). Nothing is un-accounted for inside the €82 584.
What's missing from the number (hidden scope)
The pricing offer is marketed as a turnkey build, but nine categories of necessary equipment / materials / services are not inside the €82 584 and the customer will discover them during install:
| Gap | Est. cost | Discovered when |
|---|---|---|
| CO₂ tanks, regulators, solenoids, distribution lines (Climalink controls CO₂ but no hardware) | €1 500–3 000 | Week 1 of operation |
| Carbon filtration / odour control (no inline fans + scrubbers anywhere) | €2 000–4 000 | First neighbour complaint |
| Drip lines, emitters, stakes, main water pipes (marked "buy locally") | €800–1 500 | Install day |
| Backup power (no genset or UPS for the facility) | €6 000–10 000 | First grid outage |
| Security + access control + cameras (required by Malta licensing) | €2 000–4 000 | Licensing inspection |
| Fertigation-tank heating / chilling (winter vs summer water temp) | €150–400 | First cold snap |
| Inline downstream EC/pH sensors (dosing validation) | €400–800 | First bad batch |
| F-gas certified installer for the 5 ducted commercial HVAC units in Malta | €1 500–3 000 | Quote stage |
| Mechanical room / roof space planning and builder works | €3 000–6 000 | Pre-install survey |
| Total hidden scope | €17 350–32 700 |
Net realistic cost for a functioning facility built on this vendor offer: €100 000–115 000, not €82 584.
The customer needs to go into the decision with that adjusted number.
Top-level red flags summary
🚩 RED FLAG 1 — HVAC under-sized at peak ambient
Flowering rooms get 15 kW nameplate each; derated for 38 °C Malta summer + SHR = ~9.6 kW effective sensible. Real load is 13.7–21.7 kW depending on whether dehumidifier hot side is ducted outdoors (unclear from the offer). In the worst case, the room hits 35 °C canopy on summer days and the customer loses a crop. See 06_hvac_cooling.md.
🚩 RED FLAG 2 — Flowering HVAC has zero redundancy
Each flowering room has one UCHA60-TDC. Failure mid-cycle → crop dead in 4–8 hours. Replacement lead time on a Chinese commercial unit in Malta: 4–6 weeks. One failure costs ~€15 000–30 000 of lost yield on a €3 200 unit.
🚩 RED FLAG 3 — No-name Chinese LEDs priced at Kingbrite money
€399 per "800 W top light" with no brand, no chip, no efficacy, no DLC listing, no warranty disclosure. At that price point the customer could have genuine Samsung LM301H EVO boards with spectrum graphs and 2-year warranty — instead they're getting an unidentified Epistar / LM281B+ board. See 03_lighting.md.
🚩 RED FLAG 4 — Growlink + Autogrow are two un-integrated cloud-dependent control islands
The facility has two automation vendors running in parallel: Growlink for climate + sensing + CO₂, Autogrow for fertigation. Neither integrates with the other. Both are cloud-dependent. Neither has a local fallback. If either vendor shuts down its cloud, that subsystem dies. This is a fragile architecture for a 5–10 year facility life. See 08_sensors_controls.md.
🚩 RED FLAG 5 — Dehumidifiers in flowering rooms have zero headroom
276 L/day sizes to the upper bound of expected moisture load. The first humid week in July / tight-VPD mid-flower / or defrost cycle push the dehu into saturation → humidity climbs → botrytis. See 05_dehumidification.md.
🚩 RED FLAG 6 — CO₂ enrichment implied but hardware not included
"Climalink with CO₂" controllers billed but no CO₂ tanks, regulators, solenoids, or PPM sensors. The customer is paying for controls that have nothing to control. See 03_lighting.md + 08_sensors_controls.md.
🚩 RED FLAG 7 — No carbon filtration / odour control anywhere
Cannabis flowering rooms require scrubbed exhaust. None on the bill. Malta licensing + neighbour complaints will force this before month 2.
🚩 RED FLAG 8 — No backup power
Grid outage of 4+ hours during flowering = irreversible crop damage. Malta summers have outages. Not a hypothetical risk.
🚩 RED FLAG 9 — No security / cameras / access control
Malta's cannabis production licensing requires tamper-evident physical security. Not on the bill.
🚩 RED FLAG 10 — Drip lines and main water pipes are "buy locally"
The customer thinks they're buying a turnkey grow; they're actually buying 80 % of one and assembling the rest on a deadline.
What the vendor got right
Not everything is wrong. Three line items are genuinely well-specced and worth keeping in any counter-proposal:
- ✅ Nanobubble oxygenation at €3 900 — premium, appropriate, hard to DIY cheaper. Keep. See 07_irrigation_and_water.md.
- ✅ RO at 250 L/h, €4 499 — oversized correctly. Keep. Possibly swap to a cheaper Chinese commercial unit but the sizing logic is right.
- ✅ Fan density (7 per flowering room) — correct. Keep the count; swap the brand from €79 generic to €120 AC Infinity Cloudline for reliability.
- ✅ Dehumidifier quantity (1 × 276 L/day per flowering room) — correct minimum, though we'd add a backup unit for headroom.
- ✅ Autogrow IntelliDose + Peripod M4 dosing skid — legitimate commercial mid-tier, the best-chosen component in the whole offer. Keep. See 07_irrigation_and_water.md.
- ✅ Growlink Terralink root-zone probes — correct type and count for drain-to-waste commercial monitoring. The Growlink ecosystem is the problem, not the Terralink probes themselves. (In the DIY build we replace them with TrolMaster RTI-W or METER TEROS 12 probes on a Home Assistant ESPHome bridge.)
Missing from the vendor documents entirely (both approaches need these)
These are things the customer has to address regardless of vendor vs DIY. They're gaps in the vendor offer, not gaps in our DIY proposal:
- Malta cannabis licensing framework compliance — production licensing, GMP traceability, tamper-evident packaging, security.
- Incoming 3-phase service capacity (80–100 A target) verification with landlord / EPD.
- CO₂ enrichment hardware.
- Backup power.
- Mechanical room / condenser placement.
- Carbon filtration for odour.
- Security cameras + access control.
- Water supply capacity + RO concentrate disposal.
Total 5-year TCO estimate for the vendor build
Capex €82 584 is just the start. Realistic 5-year total cost of ownership:
| Line | € |
|---|---|
| Capex (vendor offer) | 82 584 |
| Hidden scope (CO₂, carbon, drippers, backup power, security, mech) | 20 000 |
| Energy (~21 MWh/month × €0.22/kWh × 60 months) | 277 200 |
| Water + nutrients | 36 000 |
| HVAC replacement (Chinese unit expected life 5 years) | 17 000 |
| Dehumidifier replacement (continuous duty) | 7 000 |
| Lighting board replacement (unknown chip → assume 40 % fail by year 4) | 6 000 |
| Growlink / Autogrow cloud subscription fees + repairs | 3 000 |
| 5-year TCO | ~€ 449 000 |
The capex line is 18 % of the 5-year cost of operating this facility. The customer should not be optimising the wrong 18 %.