Out of nowhere in 2019 the REC TwinPeak 2 Series went from being a somewhat respected solar panel option to almost one of the most appealing solar panel options available. What happened? A resounding shift brought on by two major changes.


Make and model:  REC TwinPeak 2 Series.

Variants:  275 / 280 / 285 / 290 / 300W.

  Durability, Performance.

  Module efficiency.

CONTENTS - The information you want, fast!


The evolution of an InterSolar 2015 award winning panel, the REC TwinPeak by today’s standard has become renowned as product of high-end innovation and now more so affordability for such distinguished innovation. True, not a mono-crystalline solution, the renewed appeal now possess unequaled characteristics unmatched by any other


Will you ever find a better ranked multicrystalline solar panel to pass the Solar Review Module Assessment Design Criteria? Armed with an Intersolar Award, most probably not. The REC TwinPeak 2 Series presents a better overall design than many monocrystalline solar panels available.

REC Solar Module

REC Solar

TwinPeak 2 Series Design; SUPERIOR
  • Multicrystalline.
  • Up to 6-wire bus bar.
  • PERC enhanced.
  • Glass-laminate (White).
  • Innovative.
  • InterSolar award 2015.
  • DNV-GL certified.


Durability of the REC TwinPeak 2 Series presents as VERY GOOD when subjected to the Solar Review Module Assessment Criteria. Notably, Salt mist and Hail resistance is high-calibre when compared to the industry average, areas of intense wind loading and desert conditions (thermal cycles) may seek greater specifications.

REC TwinPeak 2 Panel Image

REC Solar

TwinPeak 2 Series Durability; VERY GOOD
  • Snow load 5400Pa.
  • Front wind load 2400Pa.
  • Rear wind load 2400Pa.
  • Damp heat testing 2000Hrs.
  • Thermal cycle testing 200+Hrs.
  • PID Free.
  • Salt mist resistance certification
    IEC 61701 (Severity 6).
  • Amonia resistance certification
    IEC 62701.
  • 35mm hail impact at 23m/s.


For the multicrystalline cell type, temperature coefficient of the REC TwinPeak 2 Series should be considered OUTSTANDING. Although a limited 18% maximum module efficiency of up to 18%, the efficiency qualities which surround that are respectable. That of which includes a +5W (3%) positive power tolerance.

REC Solar Module

REC Solar

TwinPeak 2 Series Efficiency; VERY GOOD
  • 18% Maximum module efficiency.
  • -0.36%°C Temperature coefficient.
  • 0/3% Power tolerance.


A common solar panel performance score for internationally respected solar module brands. The REC TwinPeak 2 Series pulls no hidden surprises in relation to promised performance overtime. 2.5% degradation within the first year is admirable. 0.7% degradation each year after has become the minimum expected from a linear performance guarantee. 

REC Solar Module

REC Solar

TwinPeak 2 Series Performance; SUPERIOR
  • 2.5% degradation in the 1st year.
  • 0.7% degradation per annum.
  • 25-year linear performance warranty.
  • Parts & service performance warranty.


THE RENEWED APPEAL. A key factor as to why one would select the REC TwinPeak 2 series when combined with the following Solar Review Module Assessment Criteria category. The below guarantee pitches the REC TwinPeak 2 Series amongst the industries best in terms of manufacturer support over time. 

REC TwinPeak 2 Panel Image

REC Solar

TwinPeak 2 Series Guarantee; OUTSTANDING
  • 25-year warranty.
  • Parts & service warranty.
  • Authorised installer network with additional end-user benefits.


Forget the basic poly vs mono debate when it comes to the REC TwinPeak 2 Series. Overall, the REC TwinPeak Series is a well rounded solar panel which out-specifies a majority of monocrystalline technologies available Further proof that innovative InterSolar Award wining solar panels endure the test of time.

REC Solar

TwinPeak 2 Series Overall; SUPERIOR
  • Design 4.4
  • Durability 3.6
  • Efficiency 3.8
  • Performance 4.1
  • Guarantee 4.8


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[ 4.8 - 5 ] The pinnacle of certified specification.
[ 4.3 - 4.7 ] A rare calibre of technology produced by the industry elite.
[ 3.8 - 4.2 ] Specifications which are exceedingly superior to that of the industry average.
Very Good
[ 3.3 - 3.7 ] Advanced technology against the industry average.
[ 2.8 - 3.2 ] Better than the industry average is that of which strives a portion better.
[ 2.3 - 2.7 ] A score within this bracket is considered the industry average specification.
[ 1.8 - 2.2 ] Considered below the industry mainstream average.
[ 1.3 - 1.7 ] There's better, there's also worse.
[ 0.8 - 1.2 ] Far below the modern industry average.
[ 0.3 - 0.7 ] Possesses specifications which are absent or unverified by a certified testing institute.
[ 0 - 0.2 ] Unlikely for technology manufactured in the modern era.


How was the score for the REC TwinPeak 2 range of solar panels calculated? By using the Solar Review Module Assessment Criteria V2.4 >

How does the entire current range of REC solar panels compare against each other? Discover now >


  1. These are awesome panels, I was wondering can you mount these in a motorhome? I only see them on residential buildings. Not sure if the road vibration would damage them


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