Solar Planning Tool
আপনার ছাদে কতটুকু সোলার লাগবে?
Enter your monthly electricity bill, district and provider — see the recommended system size, production, estimated cost and savings. Based on June 2026 electricity tariffs.
Step 1 · Your information
Give 3 details, get your solar report
Enter the total amount of your latest monthly bill.
This estimate is for residential (LT-A) customers. Actual bills vary by slab, roof shading and net-metering rules.
Your solar report
Proposed solar system
4.95 kWp
Dhaka · DESCO connection
Daily production
17.9 kWh
Monthly savings
৳ 5,000
Panels
9 × 550W
Inverter
5 kW
Roof area needed
504 sq ft
Estimated usage
521 units/mo
Estimated setup cost
৳ 3.86 – 5.10 Lakh
≈ ৳ 386,100 – ৳ 509,850
Estimated payback
6.4 – 8.5 years
6,526
kWh/year production
৳ 60,000
annual savings
84.8 t
25-yr CO₂ reduction
This is an approximate estimate. Final quotation depends on site survey, roof direction, shading and current equipment prices.
Load shedding backup
Need battery backup too?
A bill alone can't decide the right battery size — it depends on what appliances you need during an outage and for how long. Choose Hybrid or Off-Grid above and set your essential load and backup hours for an instant battery estimate.
How it works
The calculation, explained
Bill → units
Your monthly bill is converted to energy units using the current effective residential tariff.
Sun hours by district
We size the system using the average peak sun hours of your division — from 3.9 h in Sylhet to 4.5 h in Rajshahi.
Panels, inverter & roof
The system is translated into standard 550W panels, the nearest inverter size and the roof area you need.
Cost & payback
Current market pricing for on-grid, hybrid and off-grid systems gives you an honest cost and payback range.
Estimates assume a 550W panel, 0.86 performance ratio and current equipment prices. Final quotation depends on site survey, roof direction, shading and net-metering approval.