REC Solar Panels a quality solution for the Sunshine Coast

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At SolarWide we offer REC Solar Panels

SolarWide is offering the REC Twin Peak series of solar panels. This durable and long lasting panel is made in Singapore and has a strong 25 year product warranty. They have ben distributed in Australia since 2009 with excellent results and very low warranty returns.

SolarWide is your local Sunshine Coast REC Certified Solar Professional. Being appointed by REC to this prestigious position means not only is the REC solar panel of high quality, but that the qualified solar partner installing it is also highly skilled and has been trained by REC. This gives end customers great peace of mind for the quality of the final solar installation.

Not every installer can call themselves a “REC Certified Solar Professional”. This appointment of SolarWide means we have been recognised by REC as best-in-class service and reliability for the Sunshine Coast region.


We use quality solar equipment due to corrosive nature of our neighborhood

Why REC panels

The REC Twin Peak 370W series is known as a Premium Solar Panel with superior performance. This REC panel model features an innovative design with high panel efficiency and power output, enabling customers to get the most out of the roof space used for the installation.

Combined with industry-leading product quality and the reliability of a strong and established brand, REC TwinPeak 4 Series panels are ideal for residential and commercial rooftops in a coastal environment.

REC'S fully automated production

Founded in 1996, REC Group is an international solar energy company dedicated to building long-lasting affordable solar power panels. REC is committed to manufacturing high-quality solar panels with innovative technology. Its products won the 2020 InterSolar Award in Germany.

A quality solar panel like the Twin Peak Series 4 also requires a quality installation and quality components to maximise system performance, ensuring solid long term financial savings.

SolarWide installers ensure we follow the manufacturer’s installation guidelines and we make sure our inverter and racking choices match the REC top panel quality.

REC Panels we offer


REC TwinPeak 4 is the latest in the REC TwinPeak range that has shown incredible reliability for REC over many years. REC TwinPeak 4 Series panels are ideal for residential and commercial rooftops.  The REC TwinPeak 4 panels come with a full 25-year product and performance warranty and are made in Singapore.

  • 20.3% Module Efficiency
  • Larger panel wattages ensure the best use of your roof space.
  • Great visual appearance with black cells and black frame.
  • Temperature coefficient at pmax of -0.34%/°C means excellent in low light and hot weather performance
  • 25-Year Product Warranty – Full parts and labour warranty held in Australia.
  • 25-Year Performance Warranty – The initial degradation of the module is -2%, in the 1st year and then slows to only -0.5%/year. This brings a 86% warranted output after 25 years, compared to a range of 80.2% to 85% for many competing panels.
  • Panel size of 1755 x 1040 x 30 mm
  • Made in Singapore
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LG Solar Panels


Do solar panels perform better in hot weather?

It’s a sad fact that the hotter it gets, the worse solar panels perform. The problem is that when the temperature of a solar panel rises above about 25°C, the power output of the panel begins to degrade, especially for cheaper panels. .

In hot weather, many people will turn on their air conditioners, increasing demand for electricity. While it is natural to believe that bright sunlight would improve the performance of solar panels, allowing them to generate more power, this is not always the case.

Although Australia is a location that regularly receives very hot days especially in summer, this doesn’t mean your solar system will not operate at all. A 38°C degree day, can see temperatures of the panel on the roof reach 80 or even 90°C. This then means that you may produce 30 kilowatt hours per day rather than 40 kilowatt hours per day, which would have been possible at a 25°C day.

For this reason the temperature coefficient is important. It measures the panel’s loss of performance for every degree over 25°C. LG panels have one of the best coefficient ratings in the industry, which means in hot weather, when one needs solid solar system output to support for example air conditioning use, the LG panels will still perform well and create solid savings for you.

What is pmax and temperature coefficient?

The Pmax is the solar panel power output sweet spot, where the combination of volts and amps results in the highest wattage production. The wattage listed on a solar panel is the Pmax, where Pmax = Vmp x Imp under standard test conditions.

When solar panels are tested for maximum power output, they are subjected to a 25°C industry standard temperature. When the temperature rises above 25°C, solar panels begin to produce less power. The term “temperature coefficient” measures the percentage of power output wasted by a particular solar panel as the temperature rises above 25°C. To calculate this number, we divide the percentage of power lost at a specific degree measurement above the industry standard by the number of degrees above 25°C.

What is the history of panel and panel wattage development?

Going back 180 years the photovoltaic reaction was 1st observed by Alexandra Edmond Becquerel. Only 19 years of age he discovered in 1839 during experiments the operating principle of the solar cell. He was also the father of Henri Becquerel, one of the discoverers of radioactivity.

Over the following decades, the principle was observed over and over, but no one knew what to do with it, given also that electricity and its use was not widely discovered. Then nearly 50 years later in 1883 Charles Fritts, an American Inventor who decided to harness the principle and to develop the 1st working solar cell. While cells in residential panels nowadays can reach as much as 20% efficiency, the very early solar cells had an efficiency of less than 1%. Also, the need for gold to be involved in their production meant that they were commercially not viable.

The more practical use of solar cells began in the 1940s when Russell Ohl, an American engineer who is recognized for taking out the initial patent on a light-sensitive device – also known as the modern Solar Cell. In those days and up to the 1960s the efficiency of the cell had reached around 5%.

In 1954 commercial manufacturers such as Bell Labs had moved into solar creating silicon solar cells with a world record efficiency of 6%. A solar-powered satellite developed by Vanguard followed in 1958. Further research into solar was funded as part of the space race of the US and USSR in the 1960s.

The Soyuz 1 capsule had the 1st manned spacecraft powered with solar cells, followed by Skylab in 1973, which had solar panels as their main power generating source.

Solar became familiar to the masses in the late 1970s and 1980s via solar-powered calculators and late phone chargers.

From the 1980s solar power cell development continued exceptionally so that in the mid-1990s average locally Australian produced solar panels had an 80W capacity. By 2006, the panels had reached a staggering 165 Watts. IN 2009 the average panel in Australia had reached 175W, dominated by Suntech and Sharp as the 2 key local suppliers.

Then in 2010 came to the development of a larger footprint panel of approx 1.60m to 1mwide footprint and a weight of 20 -22kg. REC for a while held the local record with a 235W model.

Then in 2011 many new manufacturers entered the market, most of them focusing on a 250W model. It made it easy to sell a 2, 3 or 4 kW system. After a period of relative stability, cell research in 2013 saw the key local panels reach from 260 to 275W. LG Electronics Mono X Model at the time the LG275S1C together with the SunPower range started to dominate the quality solar module market.

By 2014 LG had pushed the wattage to 300W via their N-type LG NeON , which also featured the double-sided cell, to capture spill light from the back of the cell. Again 2 years of relatively stable wattage of 300 to 320W followed up to 2017.

In 2018 LG and some competitors started to release 335W models followed by 340 to 350W in 2019. The improvement in output was a combination of increased cell efficiency technology, the treatment of the surface glass to gain more light absorption and the increase of cell size and subsequently also the panel size.

While 5 years ago many panels were 1.60 to.1.64m high and 1m wide, many panels are now 1780 mm to 1850 mm high and 1005 to 1100 mm wide. Therefore the wattage nowadays is reaching 350, 370 and even 390W for residential panels. Nevertheless, since the 330W range, the wattage increases are mainly due to increases in panel sizes. This has made installing panels a little more challenging for the installer community as the weight of these larger panels has increased.  They can be also more challenging to fit on a smaller roof.

It is expected that in future years solar panels above 400W for residential solar will be released.

SolarWide, Sunshine Coast leading solar company, is highly accredited by many industry-leading brands and agencies.