Photovoltaic assisted reverse osmosis (PV-RO) has been proven an efficient renewable energy-based desalination technique to provide drinkable water, especially in remote areas. In this manuscript, a simulation based RO design system was adopted to evaluate the desalination performance for three cities of Pakistan, that is, Lahore, Hasil Pur, and Faisalabad. The inlet concentration of Lahore, Hasil Pur, and Faisalabad was reduced from 1495, 2190, and 7683 TDS to 295.44, 237.69, and 241.98 TDS respectively, according to the WHO drinking water recommendations. The RO desalination system was integrated with the photovoltaic system to fulfill the energy requirement for desalination. The energy requirement for the RO system for the working of 10 h/day with the freshwater production rate of 0.80 m³/h for Lahore, Hasil Pur, and Faisalabad is 60, 95, and 311 kWh/month, respectively. According to PVsyst software, the energy demand can be accomplished by installing 9 PV panels in Lahore, 15 PV panels in Hasil Pur, and 40 PV panels in Faisalabad. The simulation results in PVsyst showing that the battery losses will be 52.2% in Lahore, 51.1% in Hasil Pur, and 49% in Faisalabad.

光伏辅助反渗透 (PV-RO) 已被证明是一种高效的基于可再生能源的海水淡化技术，可提供饮用水，尤其是在偏远地区。在这份手稿中，采用基于模拟的 RO 设计系统来评估巴基斯坦三个城市，即拉合尔、哈西尔普尔和费萨拉巴德的海水淡化性能。根据世界卫生组织的饮用水建议，拉合尔、哈西尔普尔和费萨拉巴德的入口浓度分别从 1495、2190 和 7683 TDS 降低到 295.44、237.69 和 241.98 TDS。RO海水淡化系统与光伏系统集成，满足海水淡化的能源需求。RO 系统每天工作 10 小时，淡水产量为 0.80 m ³的能量需求Lahore、Hasil Pur 和 Faisalabad 的 /h 分别为 60、95 和 311 kWh/月。根据 PVsyst 软件，能源需求可以通过在拉合尔安装 9 块光伏板、在哈西尔普尔安装 15 块光伏板和在费萨拉巴德安装 40 块光伏板来满足。PVsyst 中的模拟结果显示，拉合尔的电池损耗为 52.2%，Hasil Pur 为 51.1%，费萨拉巴德为 49%。