Harsh Environment VS Module Durability
The Diverse Scenarios of Photovoltaic Applications

GEOGRAPHY
Heavysnow/Low temp.

Hail prone
areaTyphoon
AreaModerate area

 Extreme weather conditions such as strong winds, heavy snow, and hail present serious challenges for all PV module

manufacturers, in mechanical performance terms.

2Trina Solar Vertex Family
Trina Solar – Pioneering Ultra-high Power Modules

GROUND-MOUNTED PLANTRESIDENTIAL, COMMERCIAL & INDUSTRIAL

210-210-210-210-210-UP toUP toUP toUP toUP to4050510W

410W
Industrial average

370W55450W

60550W
540W

600W

66670W

580W

 Vertex modules are available from 410 to 670W+ in power, covering all applications
 In various applications, Vertex output is 35W to 90W higher than the industry average, BOS savings in range of 0.5~1.6

c USD/W3

5

Enhanced Tests

670W - Proven Mechanical Performance

Static Load

Non-uniform
Snow Load

Static Loading
under -40℃

Hail Impact

Enhanced
Dynamic Load

WindTunnel Test

 High reliability ensures extended power generation
 All tests conducted by independent 3rd parties All test samples are randomly picked from mass production (DEG21C.20)
 Mechanical load and warranty should comply with latest official Trina Solar User Manual and Trina Solar Warranty

4

Static Load

Equivalent Level to Traditional Modules

IEC 61215
IEC 61730
Granted in 2021.1

670W Module reliability simulations evaluating wind and snow
resistance.
Vertex non-destructive cutting cell

Conventional cutting cell

Static load

+5400Pa/-2400Pa

Static load

+3600Pa/-2400Pa

Fixed tilt

Static load

+2400Pa/-2400Pa

TrackerConventional
module structure

670W Vertex
module structure5Non-uniform Snow Load Tests
2.8M Snow Load Endurance

The modules are installed at an incline the test stress is applied at the bottom
and gradually increased.

7000Pa, 2.8 mof snow

Post testing, power degradation is only 0.56%.
*Test modules：210-670 bifacial and dual-glass modules, clamping
installation

6

Static Load Test Under -40℃
Enhanced Mechanical Load Characteristics

Mechanical load test under (-40℃): Working in extreme low-temperature environments is one of the criticalsituations, which can result in reduced mechanical performance/damage.
EL Image

Power degradation after testBefore tests

3.00%
2.50%
2.00%
1.50%
1.00%
0.50%
0.00%

Single Glass

Double Glass+5400Pa- 2400Pa

After tests

Dependable in extreme low-temperatures*Vertex 670 single and dual glass modules with cross-beam screw installation: static load criteria +5400Pa/-2400Pa

7

Hail Impact

35mm Hail Impact Resistance
Simulated impact of different sized hail on module output.
Trina test size

IEC test size

35mm

25mm

Dual glass —— hail test

Single glass—— hail test
IEC standard

IEC standard

Trina test results

Hail size

Powerdegradation

Hail sizePowerdegradation

25mm

＜3%

35mm

0.17%

Tests
passedHail size

Powerdegradation

25mm

＜3%

Trina test results
Hail size

Powerdegradation

Tests
passed35mm 0.53%
8Enhanced Dynamic Load Test
±1000PA @20000 Cycles Passed

During their lifecycle, modules endure long-term dynamic stresses on their upper and back sides. The frame, cells
and BoS are subjected to fatigue stress which can be simulated by dynamic load testing.

“IEC62782: DML±1000Pa: positive and negative cycles 3~7 time/min，5.6h/1000times”
Single glass

Enhanced Dynamic Load Tests(±1000Pa）
IEC standard

Reference modules…

Reference 540W module failed

3000

Trina modules 670W

Test Cycles

7500
Screw hole partially deformed*cross-beam screw fixation

Dual glass

Reference modules…

Reference 535W module frame torn

2000

Trina modules 670W

4000

Trina modules 670W…
*Long side shared-beamscrew fixation

20000
05000

10000

15000

20000

Test results: after 1000Pa dynamic load in 20,000 cycles, - power degradation was only 0.1%.

7.5times IEC standard

Single glass module

Vertex module is pass4times standard

Dual glass module

25000

20times (clamping) strength than standard
Note: National Key Laboratory for PV Science and Technology

9Wind Tunnel Test

62m/s Extreme Wind Performance
Wind tunnel test: One of the best methods to verify mechanical stability. Wind loads applied from 30m/s to62m/s, each lasting 30 second. Once target wind speed is achieved and stabilized, test is maintained for 900

seconds.
Windspeed（ m/s）
30.53
45.80
59.54

62.60

Reference
modules(530W)
Slight vibration.

Trina Vertexmodules(670W)
Slight vibration.

The surface of themodule distorts in theMounting failed withmiddle; severe
module under test
vibration
blown away/TrinaVertex

ReferencemoduleUnder highest windspeed the module
experiences damage

Vertex 53m/s wind test:
30° tilt

45° tilt

Screw

PassPassHybridPass

Pass

Reference Module is damaged

EL Before

EL After

Robustness of Vertex module outperforms reference module
10Installation Tips

The Installation Method Strongly Impacts System Stability.

Enhanced
Installations >Hybrid Fixation
Clamp + Bolt

To optimize for extreme
weather such as heavy snow
or strong winds Trina Solarrecommends hybrid
installation methods toensure better system stability11

over 18GW of signed ordersSpain
176MW & 202MW

China
Hebei LingShou
50MW

China
Hebei NanGong
400MW

China
Hubei LuoTian
100MW

BuildingDone

China
JPN 2.85MW
QingHai DaChaiDan Bison Energy
112MW

NA 4,000MW** ENERGY.

Brazil715MW & 850MW

Yulin China
100MW

Singapore 60MW

VietnamVinh Long
49.3MW

Vietnam
50.6MW

Vietnam
HoChiMinh & Hanoi
40MW

SUMMARY

1

The Vertex 670W module achieves outstanding
mechanical load performance.

2

Verified in enhanced tests for extreme weather
conditions such as strong wind, heavy snow, extreme
cold and hail.

3

The installation method strongly impacts systemstability. Hybrid fixation is recommended for extreme
weather conditions.
1314