Solar & Energy

Solar ROI / Payback Period

Estimate the financial return on a commercial or industrial solar installation. Uses Bangladesh BPDB tariffs and local irradiance data.

Standards: IEC 62548 SREDA net metering

Solar ROI / Payback Period

Estimate the financial return on a commercial or industrial rooftop solar installation using Bangladesh grid tariffs and local irradiance.

System size

kWp

Total installed peak power.

Installed cost per kWp

BDT

Typical range: BDT 60,000 – 80,000/kWp (2024).

Peak sun hours (PSH)

h/day

Bangladesh average: 4.5–5.5 h/day. Dhaka ≈ 4.8 h/day.

System losses

Wiring, inverter, soiling, temperature. Typical: 18–22%.

Electricity tariff

Annual panel degradation

%/yr

Typical monocrystalline warranty: 0.5%/yr.

Results will appear here after you calculate.

For estimation purposes only. Results are indicative and based on simplified engineering models. Always consult a qualified engineer before making design or investment decisions. Sustech Technology Ltd accepts no liability for decisions made based on these calculations.

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