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Home Solar System Calculator
Size, Cost & Payback — Instantly

Enter your average monthly electricity consumption and get an instant estimate of the right solar system size, total cost, and payback period for your home in Faisalabad or anywhere in Punjab.

5.3Peak Sun Hours/Day (Faisalabad)
80%System Efficiency Used
3–5 yrTypical Payback Period
25 yrPanel Warranty

Home Solar Calculator

All estimates use Faisalabad's 5.3 peak sun hours and current 2026 market prices.

Check your WAPDA bill — find "Units Consumed" or "kWh"
Select the slab that matches your average monthly units
Hybrid adds battery storage for backup during load-shedding
85% is the sweet spot for net metering economics

How the Calculator Works

1

Enter Your Monthly Units

Find this on your WAPDA/FESCO electricity bill under "Units Consumed" or "kWh". Use your summer average for a conservative estimate.

2

Select Your Tariff Slab

Pakistan uses a tiered tariff system. Higher monthly consumption = higher rate per unit. Your bill shows which slab you fall in.

3

Choose System Type

Hybrid (with battery) adds Rs. 20,000–23,000/kW to cost but provides load-shedding backup. On-grid is cheaper but shuts off when the grid is down.

4

Get Your Estimate

The calculator uses Faisalabad's 5.3 peak sun hours, 80% system efficiency, and 2026 installed cost benchmarks to give you a realistic estimate.

Solar System Size Reference Table

Monthly UnitsTypical HomeRecommended SizePanels (645W)Hybrid Cost (Est.)Annual Saving
300–400Small flat, 1 AC4–5 kW7–8 panelsRs. 380–475KRs. 126–168K
500–7003-bed home, 1–2 ACs6–7 kW10–11 panelsRs. 570–665KRs. 210–294K
800–1,000Large home, 2–3 ACs8–10 kW13–16 panelsRs. 760–950KRs. 336–420K
1,200–1,500Villa, 4–5 ACs12–15 kW19–24 panelsRs. 1.14M–1.43MRs. 504–630K
2,000+Large villa/farmhouse18–22 kW29–35 panelsRs. 1.71M–2.09MRs. 840K+

What Affects Your Solar System Size?

Air Conditioner Tonnage

A 1.5-ton inverter AC consumes approximately 1.2–1.5 kW/hour. Running 3 ACs for 10 hours adds 36–45 kWh/day — the biggest driver of system size for Pakistani homes.

Roof Orientation & Shading

South-facing roofs with no shading deliver maximum output. East/west-facing roofs produce 15–20% less. Shading from trees or water tanks reduces output significantly.

Load-Shedding Hours

If you face 8–12 hours of load-shedding in summer, a larger battery bank may be needed. The calculator estimates based on solar generation, not backup duration.

Net Metering vs. No Net Metering

With net metering, you can oversize slightly and sell surplus to FESCO. Without net metering, oversizing wastes generation. The calculator targets 85% offset for net-metering-eligible properties.

Want a Precise, No-Obligation Quote?

Share a photo of your WAPDA bill and our solar engineer designs the exact right system for your home — free site visit included in Faisalabad.

WhatsApp for Exact Quote View Home Packages

Related Pages

FAQ

Solar Calculator — Common Questions

Look at your WAPDA/FESCO electricity bill. You'll find "Units Consumed" or "kWh Consumed" clearly printed. For the most accurate calculation, use your summer average (June–August) as summer has both highest consumption and highest solar generation.
On-grid (grid-tied) systems are cheaper but shut off when WAPDA power is cut — they provide no backup. Hybrid systems include a battery bank and continue providing power during load-shedding. In Faisalabad where load-shedding can be 8–12 hours/day in summer, hybrid is strongly recommended.
85% offset is the optimal balance for FESCO net metering. Going to 100% offset means generating more surplus than FESCO credits efficiently (since buyback rate is lower than purchase rate). At 85%, your bill drops significantly while keeping the system economically sized.
The calculator uses 2026 market benchmarks for LONGi panels, Solis inverters, and Dyness batteries with standard installation costs in Faisalabad. Real quotes may vary ±10–15% based on your specific roof, cable run length, and any protection equipment needed. WhatsApp us for a precise quote.