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Tongwei Solar · TW Solar

Tongwei Solar PV Modules

TWMNH series — N-type bifacial utility & black-frame residential

Tongwei Solar (international brand TW Solar) is a subsidiary of Tongwei Group and one of the world's top-5 solar cell manufacturers by production capacity. The TWMNH module range covers utility-scale bifacial (TWMNH-66HD, 620–640 W) and premium residential black-frame dual-glass (TWMNH-48HW, 455–475 W), both using N-type half-cell technology with −0.28%/°C temperature coefficient and 30-year linear warranty.

640W
Peak Power
23.5%
Max Efficiency
30yr
Power Warranty
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Why Tongwei Solar

What Makes TW Solar a Strong Choice

Four datasheet-verified advantages for B2B procurement teams sourcing N-type modules.

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N-type Half-Cell Technology

Both TWMNH series use N-type half-cell architecture — lower resistive losses, superior low-light performance, and negligible LID/LeTID versus legacy p-type PERC modules.

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−0.28%/°C Temperature Coefficient

Class-leading temperature coefficient tied with the best N-type modules on the market. Meaningful annual yield advantage in MENA, South Asia and Southeast Asia versus older p-type designs.

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Bifacial Rear-Side Gain

TWMNH-66HD carries 80±5% bifaciality coefficient. At BNPI conditions (15% rear irradiance gain), effective power rises to 684–707 W — reducing BoS cost per kWh on ground-mount installations.

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30-Year Linear Warranty

Year 1: ≥99% output, annual degradation ≤0.4%, Year 30: ≥87.4%. TWMNH-48HW extends product warranty to 15 years — among the best in the residential category.

Active Series

Tongwei Solar Product Lineup

Current Tongwei TWMNH module series available via Econo Solar distribution. Datasheets and current production binning shared on request.

ModelCell TechnologyPower Range (STC)Max EfficiencyFormatApplication
TWMNH-66HDN-type Half-cell Bifacial (66)620–640 W23.51%66 half-cells, dual-glassUtility-scale, C&I rooftop
TWMNH-48HWN-type Half-cell Mono Dual-Glass (48)455–475 W23.8%48 half-cells, black framePremium residential rooftop
TWMNH-66HD Voc
49.10–49.60 V
TWMNH-66HD Isc
16.06–16.26 A
TWMNH-48HW Voc
36.10–36.70 V
TWMNH-48HW Isc
15.85–15.97 A

📄 Need datasheets or current pricing?

We share the latest Tongwei TWMNH datasheet PDFs with every RFQ — alongside FOB Shanghai pricing, container yield and lead time.

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📋 Stocked SKUs

Tongwei TWMNH modules we currently stock

These are the specific SKUs we have official datasheets for and current inventory on. Request the datasheet PDF directly via the form — we respond within 24 hours.

ModelDescriptionKey SpecsBest Application
TWMNH-66HD 620–640WN-type half-cell bifacial, 66 cells620–640W · 23.51% max · bifacial 80±5% · 1500V DC · −0.28%/°C · 12/30yr warrantyUtility-scale & C&I rooftop
TWMNH-48HW 455–475WN-type half-cell, black frame dual-glass, 48 cells455–475W · 23.8% max · monofacial · 1762×1134×30mm · 23.7kg · 15/30yr warrantyPremium residential rooftop
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FAQ

Common Questions About Tongwei (TW Solar) Modules

Answers about the TWMNH series and Tongwei as a manufacturer.

What is TW Solar and how does it relate to Tongwei?
TW Solar is the international brand name for Tongwei Solar Co., Ltd., a subsidiary of Tongwei Group. Tongwei is one of China's largest solar cell manufacturers, with integrated production from polysilicon to finished modules. The TWMNH module series covers utility bifacial and residential black-frame applications.
What is the difference between the TWMNH-66HD and TWMNH-48HW?
TWMNH-66HD is the utility/C&I bifacial module (620–640W, 66 half-cells) — designed for large ground-mount and commercial rooftop installations where bifacial yield matters. TWMNH-48HW is the residential black-frame dual-glass module (455–475W, 48 half-cells) — compact, elegant design for residential rooftops where aesthetics are important.
What certifications do Tongwei modules carry?
Tongwei modules carry IEC 61215 (2021), IEC 61730 (2023), IEC TS 62804 (anti-PID), IEC 61701 (salt mist), IEC 62716 (ammonia) and IEC 60068-2-68 (sand/dust). Quality management certifications include ISO 9001:2015, ISO 14001:2015, ISO 45001:2018, ISO 50001:2018 and IEC 62941:2019 for PV module manufacturing.
What is the warranty on Tongwei modules?
TWMNH-66HD: 12-year product warranty + 30-year linear power output warranty (Year 1 ≥99%, annual degradation ≤0.4%, Year 30 ≥87.4%). TWMNH-48HW: extended 15-year product warranty + 30-year linear power output warranty with the same degradation schedule — among the best product warranty in the residential category.
Does the TWMNH-66HD work in high salt-mist or ammonia environments?
Yes — the TWMNH-66HD has passed IEC 61701 (salt mist corrosion) and IEC 62716 (ammonia resistance) testing, making it suitable for coastal and agricultural installations. The IEC 60068-2-68 (sand/dust resistance) certification further expands its viability in desert utility projects.

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