Tested Products

Mounting Structures (Racking)

PV Modules

PV Strings and Arrays

Inverters

Grid Connection Interface

PV System

Testing Items

Coating (Quality)

Visual Inspection

Corrosion Protection

Electroluminescence (EL) Imaging

I-V (Current-Voltage) and I-R (Insulation Resistance / Current-Resistance)

System Performance Ratio (PR) and Power Generation Assessment / Post-Evaluation

Power Degradation

Current

Grounding (Earthing) Test

Insulation Test

Series & Parallel Connection Losses

AC/DC Line Losses

Conversion Efficiency and Power Quality

Active/Reactive Power Control, Anti-Islanding Protection, Voltage/Frequency Adaptability

Anti-Islanding Protection

Voltage/Frequency Adaptability

Testing Standards

Mounting Structures (Coating quality, corrosion protection, grounding, foundation, tilt angle, spacing, etc.)

PV Modules (Visual inspection, EL imaging, IR, IV curve tracing, soiling loss, power degradation, etc.)

PV Strings and Arrays (Polarity, current, grounding, insulation, series/parallel connection losses, AC/DC line losses, etc.)

Inverters (Conversion efficiency, power quality, etc.)

Grid Connection Interface (Active/reactive power control, anti-islanding protection, LVRT, voltage/frequency adaptability, etc.)

PV System (System performance ratio (PR), power generation assessment, post-commissioning evaluation, etc.)

Applicable codes and standards include:

GB/T 50796: Code for acceptance of PV power generation project

CNCA/CTS 00016: Technical specification for performance testing and quality evaluation of grid-connected PV power plants

CNCA/CTS 0004: Basic requirements for acceptance of grid-connected PV system engineering

IEC 60904-1: Photovoltaic devices — Part 1: Measurement of current-voltage (I-V) characteristics

IEC 62446-1: Grid-connected PV systems — Documentation, commissioning tests and inspection

EN 50530-2010: Overall efficiency of grid-connected PV inverters

IEC 61724-1: PV system performance — Part 1: Monitoring

IEC 61724-2: PV system performance — Part 2: Capacity evaluation method

IEC 61724-3: PV system performance — Part 3: Energy evaluation method

Service Advantages

Professional team and advanced equipment.

Capable of providing a wide range of specialized certification services.

Comprehensive technical expertise for acceptance inspection and performance testing.

O&M performance evaluation covering solar resource analysis, power generation assessment, and O&M assessment to optimize power plant management, enhance overall performance, and improve generation efficiency.

Holds numerous qualifications.