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645Wp
TCL Zhonghuan Review

HSM-BD72-WC645

Monocrystalline
Datasheet
23.90%
Efficiency
238.8 Wp/m²
Power Density
-0.260%/°C
Temp. Coeff. Pmax chart
573W from 645W
Power after 30 years
Smart Insights (data-driven)
  • Efficiency of 23.9% matches the Back Contact 600-650W median
  • At 238.8 W/m² power density, roof space requirements are typical for Back Contact 600-650W panels
  • Temperature coefficient of -0.26%/°C matches the Back Contact 600-650W median
  • 28.1 kg weight - 4.3 kg lighter than Back Contact 600-650W median (32.4 kg), reducing installation effort
  • Ranked #245 out of 11672 panels for efficiency in the database
Performance Profile
Price Offers 0
Shop Country Price Price/kWp
Series G11RA-72P 15 variants
Efficiency Range 23.3% - 24.6%
Avg. Efficiency 24.01%
Technology Back Contact
Dimensions 2382 × 1134 mm
Show series description

The TCL Zhonghuan G11RA-72P series introduces a new level of quality to the large-scale photovoltaics sector, basing its design on breakthrough G11 format silicon wafers. The use of such a large cell surface area allows for achieving unprecedented power density, which directly addresses the problem of high installation costs by reducing the number of required mountings and cabling. A key differentiator of the series is the advanced N-type TOPCon cell technology, which offers outstanding resistance to the LID degradation phenomenon and better efficiency in the diffuse light spectrum. These modules were designed for the most demanding industrial investments and solar farms, where the priority is achieving the lowest cost of energy (LCOE) throughout the entire power plant lifecycle. Compared to standard solutions, the G11RA-72P series is characterized by a significantly better temperature coefficient, which minimizes production drops during summer heat. The solid frame construction and high-transmittance tempered glass ensure maximum mechanical resistance to extreme weather events. It is a smart choice for professionals seeking innovation that combines high module performance with the optimization of profitability for large-scale PV projects.

Panels from the same series differ mainly in power output while having identical dimensions. Learn why →
Electrical Parameters (STC)
Nominal Power (Pmax)645 Wp
Module Efficiency23.90%
Voltage at Max Power (Vmpp)45.00 V
Current at Max Power (Impp)14.34 A
Open Circuit Voltage (Voc)54.30 V
Short Circuit Current (Isc)15.06 A
Max System Voltage1500 V
Temperature Coefficients
Temp. Coeff. Pmax-0.260%/°C
Temp. Coeff. Voc-0.220%/°C
Temp. Coeff. Isc0.050%/°C
NOCT43°C
Cell Technology
Cell TypeMonocrystalline
Cell Count144
BifacialNo
Bifaciality Factor-
Dimensions & Weight
Length2382 mm
Width1134 mm
Height30 mm
Weight28.1 kg
Area2.70 m²
Power Density238.8 Wp/m²
Warranty
Product Warranty15 years
Performance Warranty30 years
End-of-Warranty Output88.8%
First Year Degradation1.00%
Annual Degradation0.35%/year
Key Specifications
23.90%
Efficiency
645 Wp
Power
-0.26%/°C
Temp Coeff
30 yrs
Warranty
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