Marine air-conditioning and battery cooling powered by waste heat

COOL4SEA has developed a cooling technology that recycles thermal waste energy and utilizes it for marine air-conditioning and battery cooling.


Save expensive fuel-generated electricity by recycling waste heat from the ship’s engines

Reduces the ship’s emissions of CO2 by up to 94%. No harmful HFC gases are used

A modular design that ensures the functionality of the principles up to inclinations of 45°

Remote 24-hour monitoring of operations ensures high efficiency and maximum uptime. 


Sailing towards sustainability: New ESVAGT SOV to feature COOL4SEA chiller system

We are very proud to announce that we have once again agreed on a contract with Teknotherm Marine AS for the delivery of the unique COOL4SEA chiller system for a windfarm support vessel for Esvagt – Chiller system for windfarm support vessel


Surplus heating used for air condition cooling on ships

Surplus heat is used for air-conditioning and battery cooling

COOL4SEA recycles thermal waste energy from the ship’s engines for cooling. This reduces the need to burn fuel to generate expensive electricity for air-conditioning or battery cooling.

Description of refrigeration process on ship

The refrigeration process comprises four key processes

The refrigeration process is made up of four coherent processes. These proceed simultaneously in a closed system in a nearly perfect vacuum.

Award winning cooling technology

Award-winning marine air-condition cooling technology

COOL4SEA has developed an award-winning refrigeration technology for use onboard ships. The patented technology is used for turning waste heat into e.g. air-conditioning or battery cooling. Award winning cooling technology