Solar Sizing & Savings Calculator
Size a system for your roof, see what it saves over 25 years, and ask companies in your city for quotes.
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Lahore
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Sun: 5.2 PSH/dayTariff: Rs 65/unit
~462 units/mo
Rs
Plot Size709 sq ft usable
Roof Type
Shading
System Size
5kW
10 × 550W panels
New Bill-66%
₨10,144/mo
Saves ~₨19,856
Payback
2.4Years
Saves ~₨ 2.38 Lac / yr
Est. Cost
₨5.9 – 7.2Lakh
Hardware & Installation
Visual Analytics
Grid bills (No Solar) Solar (Cumulative Outlay)
Estimated Payback: ~2.4 yrsEstimated System Cost: Rs 6.43 LacAssumes 7% annual tariff escalation & 0.5% panel degradation
Installers Serving Lahore
See all in Lahore →Kit for a 5 kW System
How this calculation works
- Sunlight: 5.2 peak sun hours a day from NASA POWER reference data.
- Sizing: Based on bill ÷ Rs 65/unit at a 0.78 performance ratio.
- Roof: Assumes 45% usable area on 70% plot coverage for 10 marla.
- Projection: Assumes 7% annual tariff escalation, 0.5% yearly panel degradation, and an inverter replacement allowance in Year 12.
- Rates last checked: 1 Aug. The unit rate and the net-metering export rate are set by NEPRA and change without notice. Treat the totals as an estimate, not a quote.