The GCL P6/60-270 solar panel is a polycrystalline silicon module produced by GCL System Integration Technology Co. Ltd. Their panel output ranges between 270 to 305 W, with a maximum module efficiency of 18.7%.

As a Brisbane-based, family-owned company that’s installed over 20,000 home solar systems to date, we learned from the beginning that your solar panels must be of premium quality. 

If not, you would be forced to pay for a myriad of maintenance costs down the line, and this would put any consumer off solar energy. For this reason, we’ll discuss the GCL P6/60-270 solar panel so that Australians looking to go solar perform their due diligence in the most concise and enlightening manner possible.

These panels are manufactured in China, where the GCL was founded. However, the company has several headquarters worldwide, with five production facilities in China, and a further one in Vietnam.

GCL is recognised as the sixth-largest solar manufacturer in the world, producing modules, inverters, and energy storage, among other power utilities for residential, commercial, and utility applications. 

However, is investing in the GCL P6/60-270 solar panel worth it when so many competing solutions are readily available on the market? 

Our review will dissect all the technical specs of this GCL P6/60-270 solar panel and plainly explain its benefits to you, the consumer. By the end of this article, we’re confident that you’ll know straight away if these panels are what you’re looking for.

So without further ado, let’s get to grips with these panels!

What is the GCL P6/60-270?

The GCL P6/60-270 is a polycrystalline silicon solar panel system that’s ideal for residential, commercial, and industrial facilities. It’s constructed from high-quality thin silicon sheets, also known as wafers, and advanced cell technology that enables it to produce energy efficiently. 

The GCL unit has a maximum module efficiency of 18.7%, and the panel’s output range falls between 270 to 305 Watts.

All P6/60-270 modules are manufactured by GCL System Integration Technology Co. Ltd, a Golden Concord Group Limited subsidiary. The brand currently stand as the 6th largest panel manufacturer in the world, with facilities in both China and Vietnam.

GCL P6/60-270 Solar Panel Range 

GCL P6/60-270 solar panels are constructed from thin silicon sheets, granting them less resistance to electrical current flow. This means that the panels can generate energy at a higher efficiency than regular modules.

Currently, the GCL P6/60-270’s poly solar panel series is available in the following range:

  • GCL P6/60 270 (up to 305 W),
  • GCL P6/60-260 (up to 285 W),
  • GCL P6/60 (265 W),
  • GCL P6/60 (275 W),
  • GCL P6/72 (320 – 335 W), and
  • GCL P6/96 (415 – 430 W).

As one of the largest solar manufacturers globally, GCL products can certainly hold their own against their competitors.

GCL P6/60-270 Solar Panel Technical Specifications

A glance at the GCL P6/60-270 solar panel’s datasheet gives a handy synopsis of its technical prowess.

Following the Standard Test Conditions (STC) upon evaluation – an air mass of 1.5, a cell temperature of 25 °C, and an irradiance of 1,000 W/m2 – our table summarises the differences between the three GCL P6/60 series models:

Electrical Data (STC)
Maximum Power (Pmax)270 285305
Voltage at Maximum Power (Vmp)31.2 V31.8 V32.8 V
Current at Maximum Power (Imp)8.65 A8.96 A9.3 A
Open Circuit Voltage (Voc)38.3 V38.9 V40.6 V
Short Circuit Current (Isc)9.29 A9.54 A9.84 A
Panel Efficiency16.6 %17.5 %18.7 %
Power Tolerance (Positive)+ 2 %+ 2 %+ 1.5 %

However, at a Nominal Operating Cell Temperature (NOCT) with an air mass of 1.5, a wind speed of 1m/s, solar irradiance of 800 W/m2, and an ambient temperature of 20 °C, the panel produces the following figures:

Electrical Data (NOCT)
Power Range270285305
Maximum Power (Pmax)201.02 211.39226.75
Voltage at Maximum Power (Vmp)28.8 V29.4 V30.6 V
Current at Maximum Power (Imp)6.98 A7.19 A7.41 A
Open Circuit Voltage (Voc)35.6 V36.1 V37.7 V
Short Circuit Current (Isc)7.5 A7.7 A7.95 A

Furthermore, the temperature ratings under NOCT 800 W/m2, AM 1.5, windspeed 1m/s, an ambient temperature of 20 °C is as follows:

Temperature Ratings (NOCT)
Thermal Ratings270285305
Operating Temperature Range-40 ~ 85 °C-40 ~ 85 °C-40 ~ 85 °C
Temperature Coefficient of Pmax-0.39 %/°C-0.39 %/°C-0.39 %/°C
Temperature Coefficient of Voc-0.3 %/°C-0.3 %/°C-0.3 %/°C
Temperature Coefficient of Isc0.05 %/°C0.05 %/°C0.05 %/°C

Maximum Ratings270285305
Maximum System Voltage1500 V1500 V1500 V
Series Fuse Rating15 A15 A15 A

Material Data270285305
Panel Dimension (H/W/D)1,640 x 992 x 35 mm1,640 x 992 x 35 mm1,640 x 992 x 35 mm
Weight18.1 kg18.1 kg18.1 kg
Cell TypePolycrystallinePolycrystallinePolycrystalline
Cell Size156.75 × 156.75 mm156.75 × 156.75 mm156.75 × 156.75 mm
Cell Number606060
Glass TypeHigh TransmittanceHigh TransmittanceHigh Transmittance
Glass Thickness3.2 mm3.2 mm3.2 mm
Frame TypeAnodized Aluminium AlloyAnodized Aluminium AlloyAnodized Aluminium Alloy
Junction Box Diodes333
Connector TypeMC4MC4MC4
Cable Crossection4 mm24 mm24 mm2
Cable Length900 mm900 mm900 mm

The full datasheet is available if you want further illustrations of the module dimensions and other data.

You may notice some insignificant-looking differences between the attributes of these modules in the tables above. However, most systems, even small residential systems, require several of these panels connected in series or parallel, and these slight discrepancies lead to a significant difference to the output capacity of your system. 

What is the GCL P6/60-270 Solar Panel’s Power Output?

The GCL P6/60-270 solar panels are a highly resistant, high-efficiency module that can deliver a power output between 270 to 305 Watts.

What is the GCL P6/60-270 Solar Panel’s Efficiency?

The GCL P6/60 solar panel series has an efficiency between 16.1% and 18.7%. The GCL P6/60-270 has an efficiency rate of 16.6%. 

In addition, the GCL P6/60 solar panel has IP68 protection from dust and water, which adds to its enduring reputation regarding panel efficiency and long-term performance in the solar market.

What is the GCL P6/60-270 Solar Panel’s Temperature Coefficient? Will it Perform Well in Australian Weather?

The GCL P6/60-270 solar panel temperature coefficient is low at a (Pmax) of -0.39%/°C, and this means that the panel’s maximum power will decrease by -0.39% for every temperature rise beyond 25 °C. It will also increase by the same proportion for every degree fall in temperature.

As such, the GCL P6/60-270 solar panel won’t have any problems with Australia’s weather. This solar panel doesn’t require high-intensity sunshine to function efficiently. All it requires is daytime energy, and this doesn’t even need to be direct sunlight.

These devices have been tested to withstand harsh conditions, including salt mist, ammonia corrosion, and sand blowing tests. In Australia, there can be extreme contrasts in temperature and humidity, so any solar panel in this environment needs to be able to adjust readily to these conditions. 

This module also complies with the EC 61701, IEC 62716, and DIN EN 60068-2-68 international standards, so all solar experts approve of its use.

What is the GCL P6/60-270 Solar Panel’s Country of Origin?

The GCL P6/60-270 solar panel brand is manufactured by GCL System Integration Technology Co. Ltd, a Golden Concord Group (GCL) subsidiary, and an international energy company specialising in clean and sustainable power production. 

Like many of its fellow industry leaders, GCL P6/60-270 manufactures its panels in China.

Will the GCL P6/60-270 Solar Panel Look Good on My Home?

GCL System Integration Technology Co. Ltd manufactures solar panels for residential, commercial, and industrial facilities. 

Amongst its peers, the GCL P6/60-270 solar panel provides slightly more power output per solar panel; hence they are perfect for larger homes and businesses that need more electrical power daily. 

Aside from being ideal for homes and businesses, the GCL P6/60-270 is also suitable for applications in isolated installations.

The homeowner’s guide to financing solar is an excellent resource for learning about solar subsidies for your household or business.

GCL P6/60-270 Solar Panel Key Features

GCL invests a great of resources in its research and development, and many of its innovative products are easily positioned in the top-tier of energy generation. 

The GCL Science & Technology Industrial Group is responsible for finding ways to maximise efficiency and reduce costs, and the P6/60-270 has some noteworthy features in that respect.

But don’t take our word for it; see for yourself:

  • High efficiency: The P6/60-270 solar panel has a high conversion efficiency of 16.6% – 18.7% due to high-quality wafers and advanced cell technology.
  • Module-level current sorting: All P6/60-270 solar panel systems implement module-level current sorting. GCL took great care in matching the individual solar cells based on current.
  • Sandblow, salt fog, and ammonia test success: These solar modules have been tested and passed to withstand harsh conditions, including salt mist, ammonia corrosion, and sand blowing tests. 
  • PID resistance: The devices are highly resistant to reversible/non-reversible PID and snail trail free.
  • Low maintenance: The GCL P6/60-270 solar modules consist of highly transparent self-cleaning glass for extra yield and easy maintenance.
  • Industry-standard warranty: The panel includes a 10-year product warranty and 25-year linear performance warranty
  • Polycrystalline material: This series of solar modules are constructed from highly refined Polycrystalline silicon.

These features clearly make the P6/60-270 some of best solar panels currently available on the market. 

What is the GCL P6/60-270’s Warranty?

The GCL P6/60-270 is supported by 10 years of product warranty and 25 years linear power warranty.

With the GCL unit’s linear warranty (shown in the diagram above), there’s no doubt that your GCL P6/60-270 solar module will produce more energy than almost any other comparable module

You can depend on this stated performance metric if you are in this for the long haul.

The linear performance warranty indicates how much output power will be lost during the lifespan of the solar panel. 

Most products will suffer significantly decreased output power around the 10-year mark, but the GCL P6/60-270 and other solar panels will decline in a more linear fashion over time. This makes it much easier to estimate your panel’s future output levels.

This of course is why it’s so important to understand the ins and outs of solar panel insurance. You always want to receive the best coverage you can for your product’s lifespan.

Is the GCL P6/60-270 a Tier 1 Solar Panel?

The GCL P6/60-270 is recognised as a Tier 1 solar panel. 

As a company, GCL has been producing solar panels for over a decade. It is recognised in the solar industry as the 6th largest panel manufacturer globally and is listed on the Hong Kong stock exchange. As such, devices such as the P6/60-270 are recognised as Tier 1 panels due to their manufacturer’s strong industry reputation.

Is the GCL P6/60-270 a CEC-approved Panel?

Yes, the GCL P6/60-270 solar panel is CEC-approved.

The Clean Energy Council (CEC) publishes a list of solar panels it endorses, and the credibility behind this governing body is such that you can feel confident about the GCL P6/60-270’s performance and safety levels.

Is the GCL P6/60-270 Safe and Reliable?

Golden Concord Group Limited has existed for over 30 years. It has facilities on four separate continents, servicing individuals, small businesses, and large industrial units with reliable green energy in more than ten countries, including Australia.

The GCL P6/60-270 has a 10 – 25 years product and performance warranty which is more than enough time to feel safe about your solar power investment; in the case of a warranty claim, they have an HQ & Branch Office in Australia.

Additionally, GCL is among the solar manufacturers that have been certified by the PV testing centre (by TUV Rheinland) after successfully passing its thorough quality testing programme.

As we mentioned before, GCL solar products are approved by the Clean Energy Council for the Small-scale Renewable Energy Scheme, Australia’s home solar rebate program. 

Other tests that the GCL P6/60-270 has undergone and passed include:

● Strict quality control test to meet the highest standards: ISO 9001:2015, ISO14001: 2015 and OHSAS: 18001 2007.

● Long-term reliability tests: Passed Sandblow test, the salt fog test, and the ammonia test “IEC 61701, IEC 62716, DIN EN 60068-2- 68).”

● Passed the EL inspection test twice (100%), ensuring defect-free modules.

Advantages and Disadvantages of the GCL P6/60-270


  • Impressive efficiency ratings of 16.6% -18.7%
  • A 10-year product warranty and 25-year linear power performance warranty.
  • It has undergone and passed several successful inspections and high-quality testing programmes.
  • It utilises its thin wafers and advanced cell technology to produce energy efficiently.
  • The unit is very competitively priced.


  • There is no information regarding its compatibility with inverters made by other manufacturers.

GCL P6/60-270 Installation

As it stands, installing solar is much like building a house: if your foundations are subpar, your walls won’t hold up, regardless of how expensive the fixtures and fittings are. 

So if you want to install solar panels in your homes or commercial properties to either save on electricity bills or harness clean energy, then you need to know how to form a well-constructed solar system.

The GCL P6/60-270 is ideal for installation on the ground and in specific structures. The frame is 3.5 cm high-quality anodised aluminium and a 3.2mm low-reflection white tempered glass front.

Installing solar requires finding a certified installer. If you want to optimise your residential or commercial system, make sure to utilise the P6/60-270 to avoid mismatching resistance and less efficiency. Your warranty can void if you ignore the advisories in the product installation manual.

Trying to save money by mixing and matching different modules from various manufacturers would be akin to shooting yourself in the foot in the long run. The short-term financial savings just aren’t worth the safety concerns down the line.

Installation can be done in Australia by Nectr within a few days without any stress. If you need help with your GCL P6/60-270 solar installation, as a GCL partner, we can assist you through these when you request a quote.

GCL P6/60-270 Compatibility with Inverters

GCL, like many other solar panel manufacturers, manufactures home battery storage devices and inverters. These inverters and home storage devices it manufactures are compatible with the GCL P6/60-270.

Is the GCL P6/60-270 Worth it for Your Home? Our Opinion

Overall, GCL is a well-established energy company with sufficient resources to back up its quality guarantees. 

While the company is not as widely recognised as Canadian Solar or Jinko, it has been firmly placed in the top 10 solar energy companies in terms of market share. This is impressive when you consider how there are literally thousands of options available.

In addition to being safe and reliable, the GCL P6/60-270 is a worthwhile investment that holds up well when compared to panels we have installed from other brands on the market. 

But is this the best overall solar module for this output range and price? That depends on your solar energy goals.

If you aren’t looking to build a large-scale solar energy system for a business or a farm (that requires more output power), this module has everything you need: it’s inexpensive, durable, and ideal for the Australian climate. 

In that regard, the GCL P6/60-270 gets a thumbs up from us if you need solar energy to supply your household electrical appliances, excluding any heating requirements. 

The installation of the panels is straightforward, the price is right, and your warranty will address any concerns if anything goes wrong.

However, this panel wouldn’t be the most cost-effective option for a larger system with over 15 kW capacity, but for anyone with lower power requirements, it’s a fine proposition.

Our Guides to Solar Panels and More

We have a series of unique guides to solar, solar finance, batteries, and more; if you are looking to do more in-depth research into solar panels, check the below:

1. What Are Solar Panels? How Do Solar Panels Work?

In layman’s terms, solar panels generate current when sunlight extracts electrons from atoms. This current then powers your entire house. We’ve summarised how this process works in its entirety.

2. What Does PV Mean?

The term photovoltaic (PV) was first penned in 1890. The term derives from the Greek terms ‘phos,’ meaning light, and ‘volt‘, which means electricity.

3. What Solar Panels Do I Get? How Many Do I Need?

You might wonder what the ideal number of solar panels for your home is, and the exact answer depends on several factors.

4. How Do You Choose Good Solar Panels?

Are you looking for good solar panels for your home? If so, ensure that you choose the right solar panel for optimum efficiency.

Next Steps…

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