What Gsolar Power Co Ltd does

Gsolar Power Co Ltd (legally Shaanxi Zhongsen Electric Power Technology Co., Ltd., 陕西众森电能科技有限公司) is a privately held Chinese high-technology enterprise founded in 2006 with research roots dating to 1990, headquartered in Xi'an, Shaanxi, with one R&D center and two production bases employing more than 200 people. The company specializes in solar photovoltaic testing and production equipment, holding what it claims as 80%+ market share in China and 67% worldwide in solar simulator testing equipment, supplied to more than 1,300 customers across 36 countries.

The core technology stack centers on flash-type solar simulators rated A+A+A+ for spectral match, non-uniformity, and temporal instability - exceeding the IEC 60904-9 standard by roughly 2x - delivered across two flagship platform families: the XJCM table-top series and GIV tunnel series. Differentiating technical features include full-spectrum coverage from 300-1200nm (solving 300-400nm matching deficiencies common in competitor units), long-pulse flash durations of 10-300ms to address capacitance-effect deviations in PERC, HJT, TOPCon, and IBC cells, and a proprietary bi-facial simultaneous-flash method incorporated into the IEC 60904-1-2 international standard in 2018. The product portfolio extends beyond simulators into solar cell testers (XJCM-9, GSL-330 LED-based), automated cell sorters (GTS-40), cell cutters (GDS-50A), integrated IV+EL defect detectors, EL/PL defect imagers, and since 2024 a 0BB string welding machine. The company additionally operates a CNAS-accredited PV Test laboratory offering independent IV, EL, PID, LID, and outdoor testing services, established in partnership with Germany's PV Magazine and US-based CEA.

Revenue is generated primarily through one-time hardware equipment sales (solar simulators, cell testers, defect detectors, sorters, and automated production lines) with attached installation, training, and commissioning services, supplemented by recurring professional testing and after-sales service revenue. Distribution combines direct enterprise field sales for major accounts with regional channel partners in Europe (Mondragon Assembly) and Korea (Wooil Hightech), supported by local sales-and-service offices in India and Vietnam. Marquee end customers include Trina Solar, JinkoSolar, LONGi, Yingli, Suntech, Canadian Solar, Risen, Hanwha SolarOne, Adani Solar, HHV Solar, SGS Switzerland, the Chinese Academy of Sciences, and Xi'an Jiaotong University, alongside standards bodies such as China's National Institute of Metrology (NIM) and Singapore's SERIS.

Name

Gsolar Power Co Ltd

Legal name

陕西众森电能科技有限公司

Website

https://gsolar.cn

Company type

Private

Founded year

2006

Operating status

Operating

Headcount range

1–10 employees

Short description

Gsolar Power Co Ltd is a privately held Chinese manufacturer of solar PV testing equipment - including A+A+A+ flash solar simulators, LED cell testers, EL/PL defect detectors, and automated cell sorters - serving 1,300+ solar manufacturers, labs, and research institutions across 36 countries with claimed 67% global market share.

Ownership category

akta.pro rank

Product category

Solar PV Testing Equipment

NAICS

Instrument Manufacturing for Measuring and Testing Electricity and Electrical Signals (334515), Testing Laboratories and Services (54138)

SIC

Instruments For Meas & Testing Of Electricity & Elec Signals (3825), Services-Testing Laboratories (8734)

akta.pro primary industry

Solar Quality, Testing, Certification & Standards (Lab Testing, Inspections, Compliance) (EUAMABAN)

akta.pro secondary industry

Solar Plant Components Supply & Manufacturing (Modules, Cells, Wafers, Mirrors, Heliostats) (EUACAGAK)

Keywords

• Solar PV testing equipment
• Solar simulators
• Photovoltaic cell testers
• Module production equipment
• PV quality control

Headquarters

HQ city

Xi'an

HQ country

China

HQ region

Asia

Offices4 records

Markets served

GTM type

B2B

Offering type

Hardware or Manufacturing

Cost components

Personnel, Technology or R&D, Supply Chain, Operations, Marketing or Sales, Infrastructure

Revenue model

1. Solar Testing Equipment Sales: Sale of solar simulators, solar cell testers, EL/PL detectors, cell sorters, and automated module production lines. One-time equipment sales with associated installation, training, and commissioning services.
2. PV Testing Services: PV Test laboratory providing testing services including IV Testing at STC, EL Testing, PID Testing, LID Testing, Low Irradiance & Temperature Coefficient Testing, and outdoor IV properties testing. CNAS accredited laboratory.
3. After-sales Service and Spare Parts: Lifetime after-sales service and spare parts supply after warranty period on a paid basis. Technical support, installation, training, and maintenance services.

Go-to-market motion2 records

Distribution channels5 records

Marketing channels6 records

Core offering

Gsolar Power Co Ltd manufactures and sells solar PV testing and production equipment, including A+A+A+ rated solar simulators (XJCM and GIV series), solar cell testers, EL/PL defect detectors, automatic cell sorters, and automated module production lines. The company also operates a CNAS-accredited PV testing laboratory providing IV, EL, PID, LID, and outdoor performance testing services to solar module manufacturers worldwide.

Product overview

Gsolar Power Co Ltd (陕西众森电能科技有限公司) is a high-tech enterprise specializing in R&D, design, production, sales, and service of solar PV testing and production equipment. The company offers three main product series: (1) Solar Simulators - including XJCM series (table-type) and GIV series (tunnel-type) with A+A+A+ ratings, full spectrum (300-1200nm), and long pulse capabilities for testing solar cells and modules; (2) Solar Cell Testing & Processing Equipment - including LED cell testers (GSL-330 series), automatic cell sorters (GTS-40), cell cutters (GDS-50A), and EL/PL defect detectors; (3) PV Testing Lab Services - CNAS-accredited laboratory providing IV testing, EL testing, PID/LID testing, and outdoor monitoring. The company also provides integrated solutions like IV+EL testers and bi-facial module testers. Recent innovations include steady-state simulators (GSIV-22A), pre-illumination equipment for perovskite testing, and 0BB string welding equipment.

Differentiator

Problem solved

Functional benefit

Brands

• PV Test: CNAS-accredited testing laboratory providing PV module testing services including IV testing, EL testing, PID testing, LID testing, low irradiance and temperature coefficient testing, and outdoor IV properties testing, operated in cooperation with PV Magazine (Germany) and CEA (USA).

Products and services

• XJCM-11A+ Full Spectrum Solar Module Tester Solar module tester using xenon lamp with A+A+A+ performance, 300-1100nm full spectrum, and long pulse duration (10-150ms) for testing PERC, HIT, IBC and other high-efficiency modules. Maximum testable module size 2000x1100mm.
• GIV-20A+ Direct-Illumination Long-Pulse Solar Simulator Direct-illumination tunnel-structure solar simulator with A+A+A+ rating, 300-1200nm full spectrum, pulse width 10-100ms, for testing PERC, N-type, IBC, and HIT modules including MBB, half-cell, and shingled modules.
• GSL-330/GSL-330(C2) LED Solar Cell Tester High-precision solar cell tester using full LED light source with A+A+A+ grade, supporting EL and IR co-positioning collection, dual half-cell simultaneous testing, suitable for polycrystalline, monocrystalline, Topcon, XBC, HJT cells. Throughput 5000 pcs/h.
• Bi-facial Module Tester (Double-Side Illumination) Bi-facial module testing system using two light sources to simulate real outdoor environment, illuminating front and rear sides simultaneously with A+A+A+ class and long pulse duration (10-200ms). Testing area up to 2.6x1.6m.
• PV Testing Laboratory Services CNAS-accredited PV testing laboratory providing testing services including IV testing at STC, EL testing, PID testing, LID testing, low irradiance and temperature coefficient testing, and outdoor IV properties testing.
• GTS-40 Automatic Cell Tester and Sorter Automatic cell sorter with throughput exceeding 8000 PCS/H, breakage rate below 0.05%, supporting SMBB and BC testing, with integrated IV-EL testing module for PERC, HJT, Topcon, XBC, 0BB cell types.
• GPEL-P0303 EL/PL Defect Testing Integrated Machine EL/PL defect testing integrated machine for perovskite and tandem cell modules, featuring 4K HD camera, 0.01 precision programmable power supply, and high-efficiency laser module.
• GMD Pre-Illumination Equipment Pre-illumination equipment for perovskite and perovskite tandem PV samples, with adjustable light intensity (5000-10000W/㎡), LED white light source, 40000h lifespan, and temperature control system.
• GSIV-22A Steady-State Solar Simulator Steady-state solar simulator with A+A+A+ rating, 200-1200W/㎡ irradiance range, for testing perovskite, tandem cells, HJT, Topcon, PERC, IBC modules.
• GIV-50A Series Solar Module Tester Solar module tester for PV testing labs and research institutions with side-illumination direct structure, 300-1200nm full spectrum, pulse width 10-100ms, designed for N-type, TopCon, HJT and XBC high-capacitance modules.
• XJCM-13A+ Large-Area Solar Module Tester 13th generation large-area solar module tester with bottom-illumination reflective structure, A+A+A+ rating, 2600mmx1500mm effective testing area, 300-1200nm full spectrum, 10-100ms pulse width.
• GDS-50A Automatic Solar Cell Cutter Auto solar cell cutter for separating full cells to half cells or 1/3 cells using mechanical and thermal-stress cutting, throughput 4500 pcs/h, compatible with 156mm, 166mm, 210mm cells.
• IV+EL Integrated Tester GIVE-M2 Combined IV testing and EL defect detection in single machine with A+A+A+ standard power testing and 16 million+ effective pixels for defect imaging, suitable for inline production environments.
• 0BB String Welding Machine 0BB string welding machine (0BB串焊机) for solar module production, launched in 2024 to support next-generation 0BB cell interconnection technology.

Quantifiable outcome

• Solar simulator performance exceeds IEC 60904-9 standard by 2x in all three core indicators
• +3 more outcomes

Named customers19 records

Segments3 records

Ideal customer profiles3 records

Technology focussed Yes

API detail

Has API

No

API docs

API detail

Core technology

AI maturity

App detail

Feature6 records

Partnerships

Eight partnerships are on record, tiered flagship, core and minor.

• PV Magazine (Germany)flagshipStrategic or Co-development Partner · 1 January 2017Jointly established PV Test laboratory with Gsolar and CEA USA for providing independent solar module testing services. PV Magazine provides international media platform for publishing test results.
• CEA (Clean Energy Associates, USA)flagshipStrategic or Co-development Partner · 1 January 2017US-based solar consulting company partnering with Gsolar and PV Magazine to establish international testing laboratory providing testing services to global solar module manufacturers.
• National PV Industry Metrology Test Center (China)flagshipStrategic or Co-development Partner · 3 February 2015Strategic cooperation on cutting-edge technology research in solar PV field including national standard writing, joint equipment R&D, research projects, measurement instrument calibration and training activities.
• SGS (SGS CSTC Standards Technical Services)coreTechnology or Integration · 1 January 2015International testing authority purchased GIV-2A solar simulator from Gsolar as their testing equipment, demonstrating Gsolar equipment has reached world advanced level.
• Mondragon Assembly S.CoopcoreChannel Partner/ Reseller/ DistributorEuropean channel partner providing sales and service support for Gsolar products in Europe. Located in Spain with address: Pol.Ind. Contact details provided.
• Wooil Hightech Co., Ltd.coreChannel Partner/ Reseller/ DistributorKorean channel partner for Gsolar products in South Korea. Located at 031-713-2983.
• Chinese Academy of Sciences - Shanghai Institute of MicrosystemcoreTechnology or IntegrationPurchased GEL-M10 high-end EL defect detector for research testing equipment.
• UNIDO International Solar Energy CenterminorStrategic or Co-development PartnerUnited Nations Industrial Development Organization's solar energy center has organized officials from 21 countries to visit Gsolar, exploring cooperation in promoting solar industry development.

Scale indicators7 records

Recent moves8 records

Expansion highlights6 records

Direct peers

• Pasan SA: Swiss manufacturer of high-end solar cell and module testing equipment including IV testers and solar simulators. Direct competitor to Gsolar in the high-end PV testing equipment market, now operating within Meyer Burger's equipment portfolio.
• Berger Lichttechnik: German manufacturer of solar simulators and PV testing equipment for production environments. Direct competitor in solar simulators for module production lines with comparable A+A+A+ class products.
• Eternal Sun: Dutch manufacturer of solar simulators for module testing, specializing in large-area and steady-state simulators. Direct competitor in tunnel-type solar simulators serving similar PV manufacturer customers.
• Sinton Instruments: US-based manufacturer of solar cell characterization instruments including lifetime testers and Suns-Voc measurement tools. Direct competitor in solar cell testing, particularly for high-efficiency cell characterization.
• Halm Elektronik GmbH: German manufacturer of flash testers and solar cell/module IV testers for production-line and laboratory use. Direct competitor in solar cell testing equipment with comparable product portfolio to Gsolar's XJCM and GSL series.

Others

• SGS SA: Swiss-based global testing, inspection and certification company. SGS is both a customer of Gsolar (purchased GIV-2A solar simulator) and a partner/comparator in PV testing services — adjacent ecosystem participant rather than equipment competitor.

Broad incumbents

• Meyer Burger Technology AG: Swiss PV equipment manufacturer offering module production lines including their integrated Pasan testing equipment. Broader incumbent in PV manufacturing equipment, with Gsolar's testing products serving as alternative supplier to module manufacturers using Meyer Burger lines.
• Centrotherm International AG: German provider of production equipment and process technology for the photovoltaic industry. Broader incumbent in PV manufacturing equipment covering cell processing, module production, and related testing — serves the same customer base as Gsolar.

Market position

Strengths5 records

Weaknesses5 records

Competitive moat7 records

Key risks6 records

Key highlights7 records

Customer concentration

• LinkedInlinkedin.com/company/gsolar-power-co-ltd

Compliance7 records

Revenue estimate

Valuation estimate

Number of profiles

Profiles4 records

Funding overview

Funding rounds

Investors

Funding detail is available on the Subscription and Enterprise plan.Contact sales →

M&A

Investments

M&A and investment is available on the Subscription and Enterprise plan.Contact sales →

Frequently asked questions about Gsolar Power Co Ltd