QX/T 548-2020 in English

VALID

Grade of solar cell temperature impact to generation efficiency

Issued on:2020-04-14
Implemented on:2020-08-01
File Format:PDF
Delivery:Via email within 1~3 business days

Price(USD)： $190.00
$185.00

Standard No:	QX/T 548-2020
Document status:	VALID
Title in English:	Grade of solar cell temperature impact to generation efficiency
Title in Chinese:	太阳电池发电效率温度影响等级
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 1~3 business days
Issued on:	2020-04-14
Implemented on:	2020-08-01
Chinese Classification:	A47-Meteorology
Professional Classification:	QX-Meteorology
Related Keywords:	solar cell temperature impact temperature impact grade impact large impact v-level impact area
Related Topics:	solar cell generate electricity artificial sun temperature Oxygen pool temperature Anode efficiency The effect of silicon temperature effect super sun isothermal micro battery Potential influence Effect of vacuum Generator g3 grade Effect of optical rotation Bath temperature Battery temperature test affect optical rotation milliscale temperature Battery isothermal iec60317 temperature class Classification of temperature class Box temperature effect electrical efficiency Baidu three-dimensional isotherm core temperature of the sun core temperature of the sun too conductive Influence of temperature intensity affect the temperature battery efficiency Organic battery efficiency Solar Hydrogen Production Efficiency Solar Hydrogen Production Efficiency positive temperature Isotherm Positive Liquid cell temperature Affect the vacuum temperature material influence NO temperature Affects electron density sun surface artificial sun temperature power generation efficiency QX Isothermal compressibility sun surface Isothermal compressibility Power Generation Efficiency Hierarchy What is the temperature of the artificial sun High-efficiency solar power generation system isothermal effect electrical efficiency humidity temperature effect Effect of temperature curl influence potential Electrode influence Temperature UV effect ring solar panel Indoor temperature class Photoelectric secondary efficiency Influence of specific rotation Temperature standard grade t9 temperature grade Liquid cell temperature Oxygen pool efficiency dsc isothermal and non-isothermal Classification of temperature class ie1 Motor efficiency performance, battery, impact dsc isothermal non-isothermal efficiency Influence Effect of emissivity on temperature measurement Lithium battery charging efficiency and discharge efficiency Effect of voltage on electrophoresis effect Temperature controller grade Effect of temperature on aerobic pool Conductivity meter grade Standard silicon cell efficiency parameters Equivalent standard leak rate qx/t-2020 qx/t 567-2020

Introduction

Analysis of the core content of the standard

This standard innovatively establishes a five-level impact assessment system based on the annual average temperature reduction factor (Cr) of solar cells:

Grade	Impact degree	Cr range for fixed power stations (%)	Cr range for tracking power stations (%)
Grade I	Very small impact	≤1	≤3
Grade II	Slight impact	1-2	3-4
Level III	Medium impact	2-3	4-5
Level IV	Large impact	3-4	5-6
Level V	Very large impact	>4	>6

Key Technical Parameters

Solar Cell Temperature Calculation Formula:

T_cell = T_air + G × (a + b×e^c×V)

In the formula:

G is irradiance (W/m²)
V is wind speed (m/s)
Fixed power station coefficients: a=-3.66, b=-0.08, c=0.003

Implementation suggestions

Case: The Cr value of fixed power stations in Turpan area reached 4.15%, which belongs to the V-level impact area. Suggestions:

Prioritize the use of solar cell modules with a temperature coefficient of ≤0.35%/℃
Use active cooling system to reduce the operating temperature of the modules
Refer to the local Cr value in Appendix B for power generation correction during the design phase

Standard Evolution Analysis

This standard establishes a quantitative relationship between meteorological elements (temperature, irradiance, wind speed) and solar cell power generation efficiency for the first time. Compared with the QX/T 89-2018 solar resource assessment standard, it adds:

Temperature impact dynamic assessment model
Difference compensation coefficient for different installation methods
National major site Cr database

More samples: GB 18306-2015 JGJ 94-2008 YD/T 3934-2021

Sample only — not a preview of QX/T 548-2020

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