Techno-Economic Analysis towards Full-Scale Pressure Retarded Osmosis Plants

Pressure retarded osmosis (PRO) is a power generation process that harnesses the salinity gradient between two water bodies of different salinities. Using high as draw solution, this work assesses techno-economic feasibility technology to generate electricity using single and multistage systems. This utilizes simulator built on rigorous Q-Electrolattice equation state mass transfer model accounts for concentration polarization, combined with Dakota optimization tool perform sensitivity analysis studies. The economic indicator interest Levelized Cost Electricity (LCOE), which serves compare PRO other sources renewable energy. An LCOE value USD 0.1255/kWh was obtained from use commercial membranes at an efficiency 100% mechanical components system. drops 0.0704/kWh when ideal membrane used—thus showing improvements economics possible improved properties. With currently obtainable properties equipment, single-stage increases 0.352/kWh, not cost-competitive energy sources. Setting up systems towards minimizing found be detrimental net production by plant.