El presupuesto asciende a 113.385 euros y el plazo de presentación de ofertas está abierto hasta el 16 de julio.
Why it matters: Salt-mist resilience is non-negotiable—spec C5-M hardware or your O&M costs will sink this project's ROI within 36 months.
The Maritime Corrosion Tax
A 100 kW system on a Spanish pier isn't just another industrial rooftop job; it's a direct battle against salt mist and high humidity. If you're bidding on this Vilagarcía tender with standard aluminum rails and basic mounting hardware, you’re pricing in a catastrophic failure. For projects in the Arousa estuary, I wouldn't touch a mounting system that isn't certified for C5-M (Marine) environments. Galvanized steel is the absolute minimum; high-micron anodized aluminum is better. If you don't account for the specialized coating on the inverter heat sinks—think SMA or Huawei’s maritime-specific SKU—the maintenance calls in year three will eat your remaining margin alive.
The Strategy of the 630 kVA Connection
The technical brief mentions connecting to a 630 kVA distribution board. For a 100 kWp system, that is massive headroom. It signals that the Port Authority isn't just looking for a one-off green trophy; they are likely preparing for heavy-duty EV charging for logistics fleets or future shore power (cold ironing). The smart play for a developer here isn't just to win the 100 kW bid, but to spec an architecture that allows for easy scaling. Use a modular inverter setup and suggest an integrated Energy Management System (EMS) like Schneider Electric’s EcoStruxure. You want to be the firm they call when they need the next 300 kW.
Budget Reality Check
At roughly €1.13/Wp, this budget is a classic public sector 'middle-of-the-road' trap. With Tier 1 TOPCon modules currently sitting near €0.11-€0.13/Wp in the European spot market, the hardware cost isn't the issue. The danger lies in the administrative 'soft costs' and the bureaucratic overhead of working with the Autoridad Portuaria. If your internal costs for health and safety compliance and port-specific permits aren't dialed in, that €113k will evaporate before the first module is even clamped down.