Technology
Greek islands face one of Europe's most acute water security challenges. Summer populations can swell 5-10x with tourism, overwhelming infrastructure designed for permanent residents. Traditional solutions — tanker ships at €8-15/m³, overtaxed boreholes, and rationing — are expensive, unreliable, and increasingly insufficient.
Seawater reverse osmosis has become the technology of choice for island desalination. Modern SWRO systems with energy recovery achieve specific energy consumption of 3.0-4.0 kWh/m³ — making desalinated water cost-competitive with tanker delivery at a fraction of the environmental impact.
For islands navigating long permitting cycles or seasonal demand patterns, containerized SWRO units offer immediate relief. A 40-foot container houses a complete 500-1,500 m³/day desalination plant, deployable within 4-6 weeks. Permanent installations make sense once permits are secured and year-round demand justifies the investment.
Municipal budgets are tight and technical expertise scarce. Under a BOOT contract, RIEFILT finances, builds, owns, and operates the desalination plant. The municipality pays per cubic meter of water delivered — no CapEx, no technical risk, no operator recruitment challenges. At contract end, the fully operational plant transfers to municipal ownership.
Responsible SWRO operation requires careful brine management. Diffuser-based discharge systems ensure rapid mixing and dilution, minimizing impact on benthic ecosystems. Subsurface intakes (beach wells or infiltration galleries) eliminate impingement and entrainment risks compared to open ocean intakes.
Under a BOOT or rental contract, desalinated water from containerized SWRO systems costs €1.80-3.00/m³ depending on capacity and contract duration. This compares favorably to tanker delivery at €8-15/m³. For permanent installations under BOOT, costs can drop to €1.20-2.00/m³ at larger scales (>2,000 m³/day).
From contract signing to first water, containerized SWRO systems can be deployed in 4-6 weeks. This includes transport, site preparation, seawater intake connection, power connection, commissioning, and operator training. RIEFILT maintains pre-commissioned units at strategic Mediterranean locations for rapid mobilization.
Every island has unique conditions. Request a RIEFILT Water Assessment — we analyze your seawater quality, model seasonal demand patterns, evaluate site options, and design the optimal SWRO solution. Whether containerized rental or permanent BOOT, we deliver water security tailored to your island's needs.
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