Enter your bill
Use monthly rupees or units, then select your city so the model can apply DISCO and sun-hour assumptions.
Estimate solar system size, 5 kW to 20 kW cost, monthly savings, payback, and net billing export credit using your city, DISCO, and electricity bill.
The full calculator opens with your bill and city values so you can review system size, price range, savings, payback, and financing scenarios.
Use these as rough Pakistan planning ranges before you compare itemized installer quotes.
Each tool is focused on a common buying question: system size, financing, panel prices, or battery backup.
Estimate size, cost, savings, payback, and net billing from your monthly bill.
OpenCompare down payment, tenure, EMI, and Islamic bank profit scenarios.
OpenReview Pakistan panel brands by wattage, efficiency, warranty, and price range.
OpenCompare lithium battery usable kWh, backup hours, cycles, and lifetime cost.
OpenUse monthly rupees or units, then select your city so the model can apply DISCO and sun-hour assumptions.
Compare on-grid, hybrid, and battery-backed estimates before shortlisting installers.
Check panels, inverter, structure, protection, filing charges, warranty, and after-sales support.
Solar output changes by city, roof exposure, and DISCO assumptions. Start with the closest city page for local planning notes.
Open common report searches such as 3 kilo watt hybrid solar in Lahore, 5 kW on-grid Karachi, and city-specific system-size estimates.

Imported units and exported units no longer have the same cash value for new prosumer connections. This guide shows the 2026 payback logic before you sign a solar quote.
Read guide
Choose the right system type before choosing panel brand. The correct answer depends on backup need, daytime load, DISCO approval, and battery budget.
Read guide
A solar installation and an approved DISCO prosumer connection are not the same thing. Use this checklist before your installer submits the file in your name.
Read guide
A low Rs/W number is not automatically a good deal. Learn how to compare panel-only rates, total DC watts, warranty, serial verification, and full installed system scope.
Read guideYes. The calculator is free, does not require login, and does not ask for a phone number before showing estimates.
Yes. It separates self-consumption, imports, and export credit assumptions so buyers can avoid old one-for-one net metering math.
The main calculator covers large Pakistan cities including Lahore, Karachi, Islamabad, Rawalpindi, Faisalabad, Multan, Gujranwala, Peshawar, Hyderabad, and Sukkur.