workshop: the role of technology and o&m in protecting ... · pv operations europe 05.03.2020...

PV Operations Europe05.03.2020

JinkoSolar

WORKSHOP: The role of technology and O&M in protecting assets

Facts and Figures

Shipment

# 1

Market

Share

12.8%

Bankability

# 1

Delivered

48GW

Cell

EfficiencyRecord

24.58%

6 Global Factories | 34 Sales Offices | 80+ countries where Modules are delivered | 13.000+ Employees

Vertically integrated Production

Source: PV Magazine 14 PV trends for 2019https://www.pv-magazine.com/2018/12/31/14-pv-trends-for-2019/

Guaranteed Quality along

the entire Value Chain

Best Supply Chain

Management with First

Class components

Optimized Cost structure

due to >10 years

experience

HC Technology

Half-cell

Full-cell

P loss = I2 * Rs

Electrical current (i) flowing on busbar is

halved

Resistive losses in a HC

modules is ¼ of a full

sized cell

Avg. 7Wp power up

compared to Cheetah

full-cell

Lower Hot-Spot Level, Despite Higher Wp

CellShading

condition

Maxim

temperature

from test

Delta

Mc-Si

½ cell 115.4 /

½ half cell 96.0 19.4

Mono

PERC

½ cell 122.4 /

½ half cell 98.0 24.4

Halved Current

Lower Power

dissipated

Around 20°C lower

hot spot

Mitigated risk for

system operation

Half-cell Full-cell

Micro-Crack Impact Mitigation

Half-cell

Smaller cell area reduces by 50% the potential impact of micro-cracks

50% lower current path with MBB tech. compared to 5BB

Decreases the power loss risk induced by micro cracks

Tiling Ribbon (TR) Technology

Pressed shape wires to ensure reliability

Special design of the cell overlap region

EVA fills the overlapping region giving

Excellent buffer effect to ensure reliability

Structure diagram of overlapping area

CellEVA Ribbon

The importance best-quality materials

© DuPont 2019

Best-practice guidelines

Lost Quality Value Chain

When not every step is under control the risk of damages and losses raises

Connector compatibility

‣ PV Connectors have to be used according to IEC 62548 TS

‣ IEC 62548 TS: Design requirements for PV systems

“…connectors, that are connected in one PV System, have to always be the same connector type from the same connector Manufacturer”

‣ PV Module Installation Manual

‣ local and national nationale regulations need to be observed

‣ If not observed, the risk of losing module warranty applies

© Stäubli 2018

Cleaning and Hot-Spots

➢ Cleaning is needed primarily to avoid damages to PV modules caused by materials

thermal fatigue and accelerated degradation

➢ Hot-spots induced by excessive soiling can reach critical temperatures for the

polymers used for PV modules construction

Cleaning and Hot-Spots

… when cleaning brings more

damages than benefits …

Cleaning methods should fulfill

the Manufacturer’s guidelines or

be approved by the

Manufacturer

LCOE: Levelized cost of Electricity

Thank You!

andrea.viaro@jinkosolar.com

www.jinkosolar.eu