Leading Manufacturer for Mono-Crystalline 50W Solar Panel Wholesale to Bahamas

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Technical parameter

Maximum Power(W)                        50W

Optimum Power Voltage(Vmp)        18.72V

Optimum Operating Current(Imp)    2.67A

Open Circuit Voltage(Voc)               22.83V

Short Circuit Current(Isc)                 2.94A

Mechanical Characteristics

Cell Type Monocrystalline              125×62.5mm

No of Cell                                        36 (4x9pcs)

Dimensions                                     636x554x25mm

Weight                                            4.2Kg

Front Glass                                     3.5mm,High Transmission, Low Iron,Tempered Glass

Junction box                                    IP65 Rated

Output Cable                                   TUV 1×4.0mm2/UL12AWG,Length:900mm

Temperature and Coefficients

Operating Temperature(°C):                -40°C ~ + 85°C

Maximum System Voltage:                  600V(UL)/1000V(IEC) DC

Maximum Rated Current Series:         15A

Temperature Coefficients of Pmax:     -0.47%

Temperature Coefficients of Voc:        -0.389%

Temperature Coefficients of Isc:           0.057%

Nominal Operationg Cell Temperature (NOCT): 47+/-2°C

Materials of solar panel

1).Solar Cell——Mono-crystalline solar cell 125*125mm

2).Front Glass——-3.2mm, high transmission, low iron, tempered glass

3).EVA——-excellent anti-aging EVA

4).TPT——-TPT hot seal made of flame resistance

5).Frame——anodized aluminum profile

6).Junction Box——-IP65 rated, high quality, with diode protection

Superiority: high quality anodized aluminum frame, high efficiency long life, easy installation, strong wind resistance, strong hail resistance.

Features

1. High cell efficiency with quality silicon materials for long term output stability

2. Strictly quality control ensure the stability and reliability, totally 23 QC procedures

3. High transmittance low iron tempered glass with enhanced stiffness and impact resistance

4. Both Poly-crystalline and Mono-crystalline

5. Excellent performance in harsh weather

6. Outstanding electrical performance under high temperature and low irradiance 

Quality assurance testing

Thermal cycling test

Thermal shock test

Thermal/Freezing and high humidity cycling test

Electrical isolation test 

Hail impact test

Mechanical, wind and twist loading test

Salt mist test

Light and water-exposure test

Moist carbon dioxide/sulphur dioxide

Ward Bower’s plenary presentation from SPIE Optics + Photonics 2011.

http://spie.org/op

An overview of the activities and progress made in the US DOE Solar Energy Grid Integration Systems (SEGIS) program is provided. The SEGIS Program has progressed since 2008 from the “Conceptual Designs and Market Analysis” through “Prototype Development” and is now in “Toward Commercialization. Prototypes spanned system sizes from micro-inverters (200W)
through modular commercial sizes of 100kW. This SEGIS R&D has opened pathways for connecting PV systems to emerging intelligent utility grids and micro-grids. In addition to new grid-interconnection capabilities and “value added” features. The new hardware designs result in smaller, less material-intensive, and higher reliability products that can be considered by interconnected utilities as generation resources rather than as unpredictable negative loads. The solutions and “value added” will enable the “advanced integrated system” concepts and “smart grid” evolutionary processes forward in a faster and more focused manner. Advanced integrated inverters/controllers are incorporating energy management functionality, intelligent electrical grid support features and a multiplicity of communication technologies. This SEGIS work focuses on grid-integrated systems, but stand-alone energy management controls enable implementation of micro-grid functionality. Portals for energy flow and two-way communications are implemented. SEGIS hardware is being developed for the utility grid of today, which was designed for one-way power flow, for intermediate grid scenarios, AND for the grid of tomorrow, which will seamlessly accommodate two-way power flows as required by wide-scale deployment of solar and other distributed resources. SEGIS hardware and control developed today meets existing standards and codes AND provide for future operations and transitions to a smart grid mode that enables utility control and optimized performance.

Biography: Ward Bower has been with Sandia National Laboratories for 47 years and has led PV inverter, controller and balance-of- system R&D work since 1978. He currently is technical lead for the US Department of Energy Solar Energy Grid Integration Systems (SEGIS) Program where the 3-stage program focuses on development of advanced PV systems for higher penetration applications into a more intelligent electrical utility grid. He is a voting member of Code Making Panel #4 for the National Electrical Code(r) and is Chairman of the PV Industry Forum for Article 690, “Solar Photovoltaic Systems”. He is a member of the Underwriter Laboratories Standards Review Committee for UL1741. He has authored more than 75 papers for PV systems, inverters and balance-of-system components.

การทำงานของระบบ โซล่าเซลล์ ออนกริด อินเวอร์เตอร์ (Solar On Grid Inverter)