The use of solar energy is increasingly turning out to be one of the most brilliant choices amongst homeowners and businesses in Pakistan. As electricity prices rise and power failures increase, installing a solar system is no longer a luxury—it’s a necessity. This guide shows you how to calculate the correct system size and estimate total cost using current solar panel and inverter prices in Pakistan (2025).
We at SOLAR LGAO provide accurate information so you can make an informed choice and save significantly on your electricity bills.
Step 1: Be Aware of How Much Electricity You Use
Check your electricity bill for monthly usage in kilowatt-hours (kWh).
Scenario: If your bill shows 500 kWh, that’s your monthly consumption.
Step 2: Discover Your Daily Energy Need
Solar system sizing is based on daily usage.
Formula: Daily Usage (kWh/day) = Monthly Usage (kWh) ÷ 30
Example: 500 ÷ 30 = 16.6 kWh/day
Step 3: Compute Solar System Size
Pakistan averages 5–6 peak sunlight hours per day (use 5.5 for sizing).
Formula: System Size (kW) = Daily Usage (kWh/day) ÷ Sunlight Hours
Example: 16.6 ÷ 5.5 = 3.02 kW → round to 3.5 kW for headroom.
A 3.5 kW solar system will meet this usage with margin for future demand.
Step 4: Solar Panel Price in Pakistan (2025)
- Panel price: PKR 40–70/watt (brand, wattage, efficiency)
- 550W panel: PKR 22,000–38,000
- For 3.5 kW: approx. 6–7 panels (depending on wattage)
Step 5: Solar Inverter Price in Pakistan
An inverter converts DC from panels to AC for your home.
3–5 kW inverter: PKR 80,000–180,000 (Growatt, Huawei, Inverex are popular)
Step 6: Installation and Other Costs
Mounting Structures
PKR 15,000–30,000
Breakers & Wiring
PKR 20,000–40,000
Net Metering (optional)
PKR 25,000–50,000
Step 7: Example Cost Breakdown (3.5 kW)
| Components | Estimated cost (PKR) |
|---|---|
| Solar Panels (3,500W @ 50/watt) | 175,000 |
| Solar Inverter | 120,000 |
| Mounts & Accessories | 50,000 |
| Total Estimated Cost | 345,000 |
Step 8: Calculate the Savings
If your monthly bill is PKR 18,000, a 3.5 kW system can save about PKR 216,000/year.
Payback: ≈ 1.6 years. Afterwards, enjoy over 20 years of low-cost, clean energy.
Final Words from SOLAR LGAO
- Compare solar panel prices from multiple suppliers.
- Choose Tier-1 solar panels for efficiency and reliability.
- Invest in a quality inverter to maximize power output.
- Plan for future energy demand to avoid costly upgrades.
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SOLAR LGAO helps you select the best panels, inverters, and configuration to save costs and live sustainably.
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