11 kW Solar Off-Grid + RO Plant Pumping System – Itehaad Town, Orangi, Karachi | SSES

On 30 December 2018, SSES successfully installed an innovative 11 kW solar solution in Itehaad Town, Orangi. This hybrid system cleverly combines a 5 kW off-grid solar setup with a 5 kW solar water pumping system, specifically designed to power an RO plant. The installation includes two inverters, including a three-phase VFD inverter to drive the RO pump, and is supported by four maintenance-free batteries for nighttime operation. 

System Configuration & Highlights

• 5 kW Off-Grid Solar Array with inverter and battery backup for household needs.
• 5 kW Solar Water Pumping Setup driving the RO plant efficiently via a VFD inverter.
• Two-inverter architecture for optimized load management and redundancy.
• Four maintenance-free batteries ensuring uninterrupted performance after sunset.

Key Benefits

• Reliable, fuel-free operation—especially critical in areas with unstable grid power.
• Continuous RO plant operation ensures safe drinking water for residents.
• Efficient energy distribution between household power and water pumping loads.
• Low maintenance with long-term sustainability.

Why SSES Delivered Excellence

This project highlights SSES’s ability to integrate multiple solar applications into a unified, resilient system. Our technical prowess ensures both lighting and water purification needs are served seamlessly and sustainably.