Jinko Tiger Neo or JA Solar DeepBlue 4.0: how an EPC contractor picks a module for a Bangladeshi project

By Vvon Engineering Team | Published 2026-05-14 | Updated 2026-09-13

Compare exact Jinko Tiger Neo and JA Solar DeepBlue models using dimensions, electrical limits, site yield, warranties and current quotations.

Solar EPC & street lighting RFQ checklist (TXT)

Compare the exact JinkoSolar Tiger Neo and JA Solar DeepBlue models offered for the roof. Product-family names alone do not establish output, dimensions, warranty or compatibility.

Both product families include N-type offerings, but models and revisions differ. Obtain the complete model code and current market-specific datasheet before comparing them.

Side-by-side comparison

Parameter	What to compare for both offers
Model and revision	Exact product code, power bin and datasheet date.
Roof use	Dimensions, weight, clamp zones and permitted mechanical loads.
Electrical match	Voc, Isc, operating current and temperature coefficients against the inverter design.
Yield	Documented model parameters, site temperature and shading.
Bifacial use	Rear-side response and site-specific reflected-light model; no default percentage gain.
Warranty	Exact product/performance terms, exclusions and claim costs.
Price and delivery	Dated delivered quotation, taxes, stock and substitutions.
Approval	Current certificates and model eligibility for the project.

A valid comparison needs matching conditions and the delivered model. Do not mix figures from different power classes or warranty revisions.

What we actually check before specifying a module

• Temperature coefficient, because the datasheet is measured at 25°C and your roof is not. Standard test conditions are a reference, not a forecast of operating temperature. The coefficient tells you how much of the nameplate survives a real cell temperature, and should be assessed alongside efficiency and roof constraints.
• The shape of the performance warranty, not the headline year-25 figure. Ask for the first-year loss, the annual linear rate after it, and what the claim procedure requires: whose test, at whose cost, and what constitutes proof. A warranty that requires the module to be shipped abroad for adjudication is not the same product as one settled in country.
• Bifaciality, but only where the roof will actually return light. Bifacial gain needs reflected light from behind: a light-coloured membrane roof, a tilted array with real clearance, a ground-mount over pale ground. Flush-mounted on a dark tin shed with almost no air gap, the rear face sees very little, and paying a bifacial premium there may provide little rear-side energy benefit.
• Mechanical load rating, front and rear, referenced to the clamping positions you will actually use. Bangladesh gets nor'wester squalls and cyclone-edge wind, and uplift on a rooftop array is the load case that pulls modules off. A module's tested load rating is only valid at the clamp points it was tested at, so the module rating and the mounting structure design have to be checked together rather than separately.
• Supply and warranty support inside Bangladesh. Who is the in-country channel, what is realistic lead time, and can a matching model and power class be obtained in year six when a partial re-string is needed after storm damage? A twelve-year product warranty is only worth what the local support behind it is worth.
• Documentation at delivery. Flash test data, module serial number lists tied to string positions, and the certification documents. Without a serial list mapped to the layout, identification and claim handling become more difficult.

Performance in Bangladesh's climate

Model the selected products using the site's weather and layout. A temperature-coefficient difference affects output, but cannot by itself establish the annual energy difference or environmental suitability.

Review environmental qualification, construction and warranty for the site exposure. Moisture and potential-induced degradation are relevant checks, but their relative financial impact cannot be ranked universally against efficiency.

Include a site-specific soiling and cleaning assumption in both yield models. Compare that sensitivity with the modelled equipment difference.

So which should you choose?

Choose the compliant offer that best fits the roof, inverter, warranty, delivery and lifecycle case. A generic claim of less than 1% difference is not supported without an exact-model simulation or comparable test.

Write measurable requirements and a controlled substitution process. Any alternative must retain utility approval, electrical compatibility, structural suitability and the agreed warranty; do not accept a substitution solely because it is in stock.

Sources and project checks

Consult the relevant edition and the documents for the exact equipment and site: JinkoSolar: model datasheets, certificates, installation manuals and warranties; JA Solar: model datasheets, warranties and installation documents; BloombergNEF: PV module tiering methodology; IEA PVPS: operation and maintenance in different climates.

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