5kW vs 10kW Solar System in Pakistan (2026): Cost, Units & Payback Comparison
By PSI Editorial · 6 min · Updated August 21, 2026
💡 Quick Summary & Key Takeaways
- 5kW On-Grid Cost: PKR 480,000 – 580,000 (Monthly Savings: ~PKR 40,000)
- 10kW On-Grid Cost: PKR 920,000 – 1,150,000 (Monthly Savings: ~PKR 85,000)
- Roof Area: 5kW needs ~280 sq ft; 10kW needs ~550 sq ft
- Net Metering: 10kW exports significantly more units, maximizing quarterly cash credits
1. Side-by-Side System Specifications
Comparing 5kW and 10kW configurations:
- Solar Panels (580W): 9–10 panels (5kW) vs 18–20 panels (10kW).
- Inverter: 5kW Single/Three-Phase vs 10kW Three-Phase Inverter.
- AC Support: Powers 1 Inverter AC (5kW) vs 2–3 Inverter ACs (10kW).
2. Financial Payback and Cost per Watt
Because fixed costs (net metering paperwork, AC/DC DB boxes, labor transport) remain similar, a 10kW system has a lower cost per installed watt and achieves faster financial payback than a 5kW setup.
Frequently Asked Questions
How much more does a 10kW system cost compared to a 5kW system in Pakistan?
A 10kW on-grid system (Rs. 920,000 – 1,150,000) costs approximately 80% to 90% more than a 5kW on-grid system (Rs. 480,000 – 580,000), offering lower cost per watt due to economies of scale.
How many units does a 5kW system generate vs a 10kW system?
A 5kW system generates 600 to 750 units/month (saving Rs. 35,000–45,000), while a 10kW system generates 1,200 to 1,500 units/month (saving Rs. 75,000–95,000).
Which house size needs 5kW vs 10kW?
5kW is ideal for 5 to 10 Marla houses with 1 AC. 10kW is standard for 10 Marla and 1 Kanal homes running 2 to 3 ACs with net metering.