How to Size a Solar System for a Garments Factory in Bangladesh

Start with your load profile

Sizing begins with how much electricity you use and when. Pull 12 months of utility bills, identify your daytime base load (machines, lighting, HVAC) and your peak demand. Rooftop solar offsets daytime consumption, so the daytime load — not the monthly total — sets the useful system size.

Roof area and capacity

As a rule of thumb, each kWp of modern mono-PERC or N-type panels needs roughly 5–7 m² of usable, shade-free roof. A typical RMG shed roof can host hundreds of kWp. We assess structural capacity, orientation and shading before fixing the array layout.

Grid tie-in and net-metering

On-grid systems in Bangladesh connect under DESCO/BPDB net-metering, which credits exported energy. Our scope covers single-line design, protection, documentation and coordination through to net-metering approval and grid-tie commissioning.

Estimating payback

Payback depends on your tariff, daytime self-consumption and system cost. Most industrial rooftop systems in Bangladesh recover their cost within a few years and then deliver decades of low-cost generation. We provide a feasibility report with your actual numbers.