Solar Savings & ROI Calculator
Solar Savings & ROI Calculator: Is Solar Worth It in 2026?
With Pakistan's grid tariffs climbing year after year, more homeowners are asking the same question: does a rooftop solar system actually pay for itself? This calculator gives you a clear, numbers-first answer based on your own roof, your own bill, and your own sunlight — no salesperson required.
| Feature | Benefit For You |
|---|---|
| Payback Period | See exactly how many years before your system has paid for itself in saved bills. |
| Monthly Savings | Know how much your electricity bill will drop the very first month after installation. |
| 10-Year Outlook | Project a full decade of savings so you can compare solar against any other investment. |
How This Tool Works
System Size (kW)
This is the total capacity of your solar panels. A typical Pakistani home runs comfortably on a 3kW–10kW system. The bigger the system, the more units it produces — but also the higher the upfront cost.
Installation Cost (PKR)
Include panels, inverter, mounting, wiring, and labour. As of 2026, on-grid systems in Pakistan average around PKR 150,000–180,000 per kW installed. Use the actual quote from your installer for the most accurate ROI.
Sunlight Hours
This is the number of peak sun hours your roof receives per day — not total daylight. Most of Pakistan averages 5–6 productive hours; arid zones like Bahawalpur and Quetta can hit 6–7. We apply an 80% performance ratio to account for inverter loss, dust and temperature.
Grid Electricity Rate
The per-unit (kWh) tariff you currently pay. Higher tariffs mean faster payback — every unit your panels generate is a unit you don't have to buy from the grid.
Why Solar Is a Hedge Against Inflation
Electricity tariffs in Pakistan have climbed at double-digit rates almost every year for the past decade. Fuel adjustments, currency devaluation and capacity charges all push your monthly bill higher — and there is no sign of that trend reversing in 2026.
Solar flips that equation. Once your system is installed, your "cost per unit" is essentially fixed for the next 20–25 years. Every time WAPDA or K-Electric raises tariffs, your savings increase automatically. In other words, solar isn't just a one-time saving — it's an inflation-protected asset bolted to your roof.
Combined with net-metering, surplus units you export during the day can offset your night-time consumption, pushing real-world payback periods even shorter than the calculator suggests.
Pair this tool with our Eco-Friendly Home blog post to maximize your savings!
Read the guideDisclaimer
Results are estimations for planning purposes only and do not constitute financial or engineering advice. Real-world performance depends on shading, panel orientation, inverter efficiency, weather and local net-metering policy. Always confirm system sizing and ROI with a certified installer before purchase.
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Calculator Jungle provides free and accurate online calculators designed to help users solve daily calculations easily — from finances and health metrics to math and utility needs.
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