What is ROI in a Solar Project?
ROI (Return on Investment) measures how quickly your investment in a solar system pays back through electricity savings.
In Pakistan, solar power now offers one of the best investment returns — usually between 18% to 25% per year, depending on the quality of equipment, usage pattern, and site conditions.
With power tariffs increasing every few months, solar is not just an environmental solution — it’s a financial strategy that saves money from day one.
Article By Rao Qamar Hassan Iqbal
I’m the CEO of Ocentra Engineering Services, with over 17 years of experience in the solar energy industry. I’ve dedicated my career to designing, managing, and implementing sustainable solar solutions across Pakistan. Through my blogs, I aim to share practical insights and help people understand how solar technology can transform energy efficiency and reduce costs.
Step 1: System Size & Type
Step 2: Real-Time Market Panel Prices (as of October 2025)
| Brand | Rate per Watt (PKR) | Rate per Watt (PKR) |
| Canadian Solar | Rs. 32.00 | Rs. 640,000 |
| Longi Solar | Rs. 31.50 | Rs. 630,000 |
| Jinko Solar | Rs. 29.75 | Rs. 595,000 |
Including inverters, structure, protection devices, BOS material, wiring, labor, and net metering, the turnkey cost of a 20kW system is approximately:
Rs. 1,600,000 – Rs. 1,700,000 (20kW Complete Installed)
Step 3: Monthly Solar Power Generation
Average solar yield in Lahore and Punjab region ≈ 4.5 units per kW/day
20 kW × 4.5 × 30 = ≈ 2,700 units/month
Step 4: Monthly Electricity Savings
If your average electricity tariff is Rs. 55 per unit:
2,700 × 55 = Rs. 148,500/month
≈ Rs. 1.78 million per year
Step 5: ROI (Return on Investment)
Investment: Rs. 1,650,000
Annual Savings: Rs. 1,780,000
ROI = (1,780,000 ÷ 1,650,000) × 100
ROI = 108% annual return
That means your solar system recovers its full cost within the first year — and continues producing free energy for the next 20–25 years.
Step 6: Payback Period
Payback = Investment ÷ Annual Savings
Payback = 1,650,000 ÷ 1,780,000 = 0.92 years (≈ 11 months)
Payback Time: Less than 1 year
After this, every month’s electricity saving is pure profit
Step 7: Benefits of Going Solar
Why Choose Ocentra Engineering Services
Ocentra Engineering Services (OES) is one of Pakistan’s trusted solar EPC companies, delivering turnkey commercial and residential solar solutions since 2014.
We provide end-to-end services — from site analysis, design simulation, and engineering layout to procurement, installation, and commissioning.
Our team ensures:
Conclusion
Investing in solar is one of the smartest financial and environmental decisions you can make in 2025. With electricity prices rising, a properly engineered solar system can recover its cost in under one year — and generate savings for decades.
Get a Free ROI Simulation Today
Contact Ocentra Engineering Services for a personalized ROI report based on your site and electricity bill.