Our Solutions
Geocean deploys turnkey SWAC solutions for sustainable cooling and heating, harnessing the natural energy of the sea. This innovative technology significantly reduces electricity consumption and CO₂ emissions, while ensuring optimal thermal comfort for buildings worldwide.


Flexible, sustainable cooling and heating solutions
Geocean’s SWAC systems adapt to specific regional needs:
- Cooling-only or combined cooling and heating for varied climate requirements.
- Deep or shallow seawater sources based on local ocean temperatures.
- Single or multi-user installations, scalable for individual buildings or larger districts.

How SWAC Works:

As a cooling solution: SWAC uses deep ocean water, found at depths of up to 1,000 meters, to provide natural, continuous cooling. Ideal for islands and tropical areas, it leverages the cold of ocean depths to reduce energy costs and environmental impact.

As a combined cooling and heating solution: For regions needing seasonal heating and cooling, SWAC utilises warmer surface seawater in winter and cooler seawater in summer. Coupled with heat pumps, it offers a year-round solution for comfort, reducing the need for conventional energy.
In all cases, a first closed seawater loop passes through an offshore pipeline up to a heat exchanger in a technical room, which then cools or warms a secondary freshwater network loop that circulates through the buildings. After use, primary seawater, which is never mixed and is left untreated, is returned to the ocean at a safe depth, preserving marine ecosystems.
The benefits of SWAC

Efficient investment: cost-effective, high-performance solutions
Our SWAC solutions allow pooling investments thanks to their ability to supply several infrastructures via a cooling or heating network. Return on investment is around 10 years, thanks to substantial savings on initial costs and tailored financing solutions. A strategic approach to reducing your CAPEX while accelerating your profitability.

Controlled operating costs: guaranteed savings
With energy consumption reductions of up to 90% compared with conventional systems, SWAC offers resilience in the face of fluctuating energy prices. By significantly reducing dependence on carbon-based energy, our solutions lower operating costs while boosting competitiveness.
You benefit from low operating costs, simplified maintenance and optimum performance 365 days a year.


An ecological choice: reduce your carbon footprint
SWAC is the ultimate eco-friendly solution, reducing CO2 emissions by up to 90% compared with traditional systems. Choose a sustainable solution that makes the most of natural resources while supporting your environmental objectives.
Proven reliability: guaranteed robustness and peace of mind
Our systems are designed to operate 24 hours a day, every day of the year, with minimum maintenance. Their over 30 years of longevity ensures constant performance, even under demanding conditions. Robust technology means there’s no need for prolonged maintenance shutdowns.
Ideal for High-Impact Projects
Geocean’s SWAC systems are designed for efficient, eco-friendly operations on a large scale. Ideal for urban districts and public or private developments, these solutions also benefit from cost-sharing through integrated cooling and heating networks, making sustainable climate control accessible and economical.
Our mission is to partner with global stakeholders—such as development agencies and environmental authorities—to bring sustainable, renewable cooling and heating to communities worldwide, adapted to regional needs.
