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🌊❄️ Marisol Cooling – sea-salt–powered cooling & water systems for hot coastal cities What if coastal districts could cool buildings with seawater, salt and sunlight instead of grid-hungry AC and synthetic refrigerants? Core idea Marisol uses engineered seawater brines as a working fluid in a three-part system: • Liquid desiccant loop – concentrated brines (NaCl + Mg/Ca from seawater or desal brine) dry incoming air, cutting the latent load. • Indirect evaporative cooling + thermal storage – pre-dried air is cooled via indirect evaporation, while salt-hydrate phase-change materials act as a “cold battery” charged at night or with solar heat. • Solar brine regeneration & salt harvest – shallow solar basins reconcentrate the brine and crystallise a fraction of the salt, creating a visible by-product: local sea salt. Compared with conventional vapor-compression AC, this architecture can reduce electricity use for cooling by 50–70% in very hot coastal climates, while keeping indoor comfort in the 23–26 °C range with healthy humidity. Plasma-activated water (PAW) R&D lane We are also exploring plasma-based water treatment as an add-on module. Non-thermal plasma in contact with water generates reactive oxygen and nitrogen species that: • inactivate microbes and biofilms in brine loops, and • help polish greywater or pre-treat streams going to desalination, reducing chemical dosing and improving overall water quality. What we are looking for Marisol is seeking: • Investment to build an integrated lab demonstrator and first coastal pilot, • Collaboration with universities and labs in cooling, desalination and plasma-activated water, and • Partnerships with coastal developers, resorts and EPCs who want a flagship, circular cooling layer for their projects. Sea salt, seawater and sunlight are abundant. Marisol’s goal is to turn them into reliable infrastructure.