Solar ROI Calculator
Find out if solar panels make financial sense for your home.
Recommended: 4 kW based on your usage
System Cost
₨0
Payback Period
0 yrs
25-Year Savings
₨0
Monthly Production
0 kWh
Cumulative Savings vs System Cost
Year-by-Year Breakdown
| Year | Annual Saving | Cumulative | Status |
|---|
🔬 How We Calculate Solar ROI
System Production
1 kW produces ~130 units/month in Pakistan (avg 5 peak sun hours × 30 days × 0.85 efficiency).
Annual Degradation
Solar panels degrade ~0.5% per year. We factor this into 25-year projections for realistic estimates.
Rising Tariffs
Pakistan's electricity tariffs rise 8-15% annually. Solar savings increase each year as grid rates climb.
☀️ Maximize Your Solar Investment
📐 Right-Size Your System
Don't over-invest. Match your system size to your consumption. Net metering credits are paid at lower rates than what you buy at.
🧹 Keep Panels Clean
Dusty panels lose 15-25% efficiency. Clean them weekly or install an auto-wash system. Return on cleaning is enormous.
📋 Apply for Net Metering
Register with your DISCO for net metering. It takes 2-4 weeks. Without it, your excess generation is wasted.
🔋 Battery: Optional
With net metering, batteries aren't necessary for savings. Only add batteries if you need backup during outages.