This 30KW on-grid solar power system, installed by Zynergy Solutions at the Waqar residence in Gulshan-e-Jamal, Karachi, was engineered for a large home carrying a heavy summer air-conditioning load. Built on 52 Longi 555-watt panels and dual Sungrow inverters, the system generates roughly 43,800 units of clean electricity a year and feeds surplus power back to K-Electric under net metering.
The Challenge
The home ran multiple inverter air-conditioners through Karachi's long summer, pushing monthly K-Electric bills into the tens of thousands. The owner wanted a system large enough to zero out daytime consumption and bank exports for the evening without compromising on equipment quality.
What Zynergy Installed
Our engineers designed a 30KW grid-tied array using 52 Longi 555W Tier-1 panels on a corrosion-resistant mounting structure, paired with two Sungrow string inverters (15KW and 20KW) for redundancy and clean power output. The system is net-metering ready, so every surplus unit is credited by the utility.
- 52 × Longi Solar 555W monocrystalline panels
- 2 × Sungrow inverters 15KW & 20KW
- Net-metering-ready AC/DC distribution & protection
- Rooftop structure sized for Karachi wind loads
The Result
The array produces around 3,600 units every month roughly 43,800 units a year covering the home's daytime load and exporting the balance. With Karachi's commercial-grade sunshine and net metering, a system this size typically pays for itself in a few years and then delivers 25+ years of near-free power.
Frequently Asked Questions
A 30KW on-grid system in Karachi like the Waqar residence generates around 3,600 units per month, or about 43,800 units per year, depending on season and roof orientation.
This 30KW system uses 52 Longi 555-watt monocrystalline panels. Panel count varies with the wattage chosen higher-wattage panels reduce the number needed.
For large homes with heavy air-conditioning loads and high bills, yes a net-metered 30KW system offsets most daytime consumption and typically pays back in a few years.