Over 2500 solar panels tested — how did our products stack up?

Here at Solar Warehouse Australia, we pride ourselves on providing the best solar power products for our customers that the world has to offer. By choosing quality renewable energy products that stand the test of time, we provide solar power modules that are proven to achieve the highest standard on an international scale.


The California-based Renewable Energy Test Center (RETC) is an independent engineering and certification test lab that specialises in renewable energy products. Last year, RETC tested more than 2,500 solar modules from 46 crystalline silicon and thin-film suppliers based on their reliability, performance and quality across 18 indicators.

Recently they released the results of its first PV Module Index and has determined only two renewable energy manufacturers scored high achievements across the board in all three core categories.

Of course, Solar Warehouse Australia offers the one manufacturer, LONGi Solar, who excelled in all eight criteria in the RETC individual test, while the other stand-out manufacturer Panasonic achieved multiple high points in each category. JinkoSolar, another brand we offer for Adelaide solar power, was a high achiever in reliability for the tests.
An extensive testing system to say the least, the Index focuses mainly on the eight important criteria which best represent reliability, performance and quality of the 150 different module families from their 46 suppliers.

Stacking up the best solar panels in the world can be tricky for the average person to research on their own, which is why the RETC PV Module Index highlights the importance of the solar industry and better evaluating modules based on features that don’t just include energy efficiency and a good price-point.

There’s no wonder that LONGi is the stellar solar module in the index as it’s one of Solar Warehouse Australia’s best selling solar panels to date. As the largest manufacturer of monocrystalline solar panels worldwide, LONGi has achieved greatness with over 18 years of solar panel manufacturing research and development history.

Providing residential, commercial and utility-scale solar installations, LONGi solar panels have their own integrated supply chain while developing their own patents and technologies in-house to create seamless sustainable energy for homes and businesses around the world.

If you’ve been thinking about solar panels why not go with LONGi solar panels Adelaide? Proven to be the best in the market for reliability, performance and quality, let Solar Warehouse Australia provide you with an obligation-free quote and assessment, let’s get you on the path to renewable energy and save on your power bills today!

How much does solar cost?

Have you been thinking about making the switch to solar? Perhaps you’ve heard about friends who have cut their power bills by hundreds, or just want to invest in a more environmentally friendly energy generating system for your home.
The good news is that overall, solar costs have come down dramatically over the past few years. As the demand grows and the technology develops, suppliers are delivering more accessible and higher performing systems than ever before.
But like with anything, there is so much information out there that it can be hard to know where to begin. Here we answer some commonly asked questions about changing to solar energy.
How much does it cost and how much can I save?
The quick answer is that it varies. Just like a length of string and the quality of the components used plays a huge factor on cost. You cannot simply compare solar panel systems in Adelaide on size alone.
Here’s a rough guide. For single person homes with an energy usage below $200/quarter, you’re looking at a cost of between $2,500 for a basic 1.5kW system and up to $3,500 for a you-beauty top of the range 1.5kW system. If you’re a 3-4 person home with energy bills of between $500-$1000/quarter we recommend a 6kW system. A 6kW with basic entry level options start at around $4,000 all the way up to $8,000 for a 6kW state-of-the-art battery ready solar energy system. If you are home is consuming greater than $1,000/quarter of energy you may want to consider a 10kW or larger system, these start from $9,000 depending on the features and quality. Our commercial solutions for businesses, start at around $12,000 for a 10kW system, and go all the way up to around $120,000 for a high quality premium 100kW solar energy system.
So you can see that the size and the quality of the system, makes a big difference to the cost. It’s also worth mentioning that the price of your system will be impacted by a number of other factors, including government incentives, the costs of your chosen contractor, the type and size of your inverter and solar panels, the experience of the company installing, and many other system specific components.
As for how much you will save, you could do your own calculations based on the size of your system, where you live, your energy consumption and usage habits, and taking into account feed-in tariffs (what the retailer pays you for overflow energy that your system generates) available to you. To make your life easier, chat to a Solar Warehouse Australia team member and we would be more than happy to help engineer the right solution for your needs, work out your potential savings as well as inform you on what you can do to help use your energy smarter.
How do I choose a reputable retailer and accredited installer?
First and foremost, choose a Clean Energy Council Approved Solar Retailer. You can tell because they’ll have the logo displayed somewhere on their site. Anyone who has this has signed a Code of Conduct committing to ethical sales and marketing, using only high-quality components and a five-year operational guarantee for every system. Better yet, you’ll also know that their installers are all accredited by the Clean Energy Council.
Solar Warehouse Australia is a proud Clean Energy Council Approved Solar Retailer.
Is solar safe for my family?
When you trust a Clean Energy Council Approved Solar Retailer, you can be confident that only qualified electricians who have undergone specific training will be working on your installation at your home. You can also double-check that your panels and inverters are safe by locating them on the Clean Energy Council’s approved lists. Remember, for any future upgrades, repairs or maintenance, it’s a wise idea to only rely on a Clean Energy Council Approved Solar Retailer.
You can also rest assured that Solar Warehouse Australia electricians are Advanced Certified SolarEdge Installers. SolarEdge is one of the most safest inverter solutions on the market. If ever damage was to occur to your system, be it rats chewing on the cabling, hail storm damage, or the kids kicking around the footy, SolarEdge’s range of unltra smart DC optimisers sense an issue and rapidly shutdown the voltage to your solar panels down to an extra safe voltage of 1V per panel.
If your thinking about going solar and would like to know more about the products that are available please feel free to fill in your details on our get a quote page, call us on (08) 7127 0752 or pop into our showroom at 678 North East Road, HOLDEN HILL SA 5088 during business hours and a member of our friendly team will be more than happy to help.