High cooling bills
24/7 guest comfort means heavy consumption, especially in tropical zones.
Sector
Cool your hotels without warming the planet.
On coastal and island destinations, air conditioning is a heavy cost and an image issue. Deep sea water cools your properties with very little electricity.
EER > 10
versus 2.5 to 3.5 for conventional air conditioning
−80%
cooling electricity versus a conventional system
30 yrs
typical lifespan of a well-maintained SWAC infrastructure
The cooling load
In warm climates, cooling drives the bill.
In a hotel located in a tropical or Mediterranean climate, air conditioning is generally the largest electricity load. It runs continuously, over large floor areas, and peaks precisely when the property is full.
That dependency carries a cost, and an exposure. On island territories, where electricity is largely produced from imported fossil fuels, the price per kWh is volatile and the carbon footprint of cooling stays high.
So the point is not only to save money. It is to free your guest comfort from that dependency, without ever degrading it.
Challenges
What is at stake in your sector
Image and ESG commitment
Your guests and partners expect concrete environmental commitments.
Site constraints
Limited plant rooms, aesthetic and acoustic requirements.
The Value Park answer
Sustainable cooling, tailored to your infrastructure.
SWAC uses deep sea water to cool rooms and common areas far more efficiently than conventional air conditioning. We also carry out the energy audit and the refurbishment of your existing chillers.
Up to 90% less cooling electricity
Constant comfort and quiet operation
A strong ESG argument
No fluorinated gases
Technical landscape
Three ways to cool a hotel, and what SWAC changes.
Most properties already combine several of these. All of them consume electricity to manufacture cooling.
Splits and VRF
Individual units or multi-zone direct expansion. Flexible and cheap to install, but energy-hungry, noisy, visible on the facade and full of refrigerants.
Central chiller plant
Centralised production with chilled-water distribution. More efficient and more discreet, but the chiller remains the main consumer.
Free cooling and recovery
Uses outside air or waste heat when conditions allow. Useful as a complement, but weak in hot climates, which is exactly when you would need it.
SWAC acts upstream of all of this. It replaces the chiller with a direct exchange with deep sea water, naturally at around 5°C. Your chilled-water distribution, fan coil units and air handling units all stay in place. What disappears is most of the electricity used to manufacture cooling, along with the associated fluorinated gases.
Eligibility
Is your site suitable?
LocationCoastal or island property with access to deep cold water within a reasonable distance
Depths400 m to 1000+ m depending on the zone (5 to 6°C from 700 m in tropical waters)
Cooling capacityFrom 5 MW to 50+ MW per loop, shareable across several properties
Shared networksA single loop can serve a resort, a marina or an entire seafront
IntegrationConnection to your existing chilled-water loop, terminals retained
NuisanceNo rooftop chiller: acoustic and visual gain
Regulatory scopeICPE study, thermal-discharge monitoring, coastal-law compliance
Our approach
How a project unfolds
01
Resource study
Bathymetry, thermal profile, currents. Identification of the optimal route for the intake pipe.
02
Techno-economic feasibility
Sizing against your cooling load and seasonality, economic model and financing scenarios.
03
Detailed design
Pipes, pumping stations, titanium exchangers, connection to your chilled-water loop and to the backup.
04
Project management
Supervision of marine and onshore works, low-season phasing, commissioning.
FAQ
Frequently asked questions
Do we have to close the property during the works?
No. The SWAC loop is built alongside your existing plant, which keeps running. The final connection is scheduled within a short window, usually in low season, agreed with you from the design stage.
Does guest comfort change?
Comfort is at least equivalent, and often better. Chilled-water temperature is more stable than with a cycling chiller, and removing rooftop units also removes their noise and vibration.
Can a single hotel justify a SWAC?
It depends on installed cooling capacity and distance to the resource. Sharing often changes the equation: one loop can serve several properties, a marina or a seafront. The feasibility study settles this before any commitment.
What environmental claim can I genuinely make?
A very large reduction in cooling electricity and the removal of fluorinated gases. Both are measurable and feed directly into a carbon assessment and environmental certification frameworks.
My property does not qualify for SWAC. What else?
Energy audits and chiller refurbishment apply anywhere: regime optimisation, upgraded controls, replacement of high-GWP refrigerants. The gains are smaller than with SWAC, but so is the investment.
A hotels & resorts project to cool?
Tell us about your site: we quickly assess the relevance of a study.
Our solutions