ROI takes in two untapped resources, solar energy, and brackish water to produce green electricity, hydrogen, and potable water. As part of our original process, we treat brackish water from either a deep formation, unusable aquifer, or seawater for either direct delivery or to prep the water to be used in hydrogen production.

Reverse osmosis has made massive strides in efficiency. Modern reverse osmosis along with ultrafiltration can remove roughly 97-98% of salts. Although, thermal desalination could potentially be used in smaller CSP plants that will only produce electricity and potable water.

Ultrafiltration uses hollow fibers that make up a membrane through which source water can flow, usually under pressure. The ultrafiltration process blocks and traps suspended solids, including organic solids, and allows for regular water to pass through.

The desalination will be reverse osmosis in our complete green energy solution plant or any plants that we intend to produce hydrogen. However, in a plant that uses CSP electricity and/or potable water, the desalination can be a thermal desalinator, negative pressure, vapor compression distillation, or reverse osmosis. The choice will depend on costs and lead times as well as the efficiencies. It is industry knowledge that in large applications reverse osmosis tends to be the most efficient and most cost-effective way to treat water. ROI always picks what is in the best interest of the client.