Solar System Sizing Screening Tool
Editable assumptions. No price promise.
Estimate a first-pass module count and footprint from assumptions you can replace. The output is not an engineering design, generation guarantee, packing list or commercial offer.
1 GWh = 1,000,000 kWh. Enter the buyer's target, not a promised output.
Replace the regional starter value with a site-specific PVGIS, PVWatts or engineering-model output.
JUSTSOLAR TOPCon 600W review route
We'll warn you if your target exceeds the space.
Screening output
What this result does not confirm
It is not an engineering design, generation guarantee, packing list, price, stock, availability or delivery commitment. Send buyer type, country, product, quantity and destination port for Frank / Director review. Final price and payment terms are confirmed only in the formal offer and PI.
Continue to structured RFQEmail me these results
Save your inputs and results for reference. A commercial offer requires Director review.
We email your results once and use your address for this request.
Method and limits
Yield assumption
Regional values are editable starting points, not site forecasts.
Mounting derating
The mounting factor is a screening input; verify tilt, azimuth, shading and losses.
Module sizing
The tool rounds module count upward; exact model dimensions and packing require document review.
Use a site-specific weather and engineering model before making design, procurement or investment decisions.