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SunPower solar panel review

SunPower panels sold and installed by Solar4Ever

SunPower E-Series 327W - 96 monocrystalline cells. 1558mm x 1046mm x 46mm

Voltage 54.7V x Current 5.98A = 327W

Price $427 ($1.31 per watt)
Power loss on 30°C day = 0.35 x 25 = 8.75%

Power loss on 40°C day = 0.35 x 35 = 12.25%

SunPower X-Series 345W - 96 monocrystalline cells. 1558mm x 1046mm x 46mm

Voltage 57.3V x Current 6.02A = 345W

Price $565 ($1.63 per watt)

Power loss on 30°C day = 0.29 x 25 = 7.25%

Power loss on 40°C day = 0.29 x 35 = 10.15%

SunPower X-Series 360W - 96 monocrystalline cells. 1558mm x 1046mm x 46mm

Voltage 59.1V x Current 6.09A = 360W

Price $625 ($1.74 per watt)

Power loss on 30°C day = 0.29 x 25 = 7.25%

Power loss on 40°C day = 0.29 x 35 = 10.15%

What's so great about SunPower solar panels?

All of the above panels are physically the same size as most other brands 270W panels

The cells are built on solid copper making them virtually indestructible

They provide a 25 year defect warranty (10 years is typical for most other brands)

They are incredibly low current panels, making parallel strings easy with zero power 'clipping'

The company is owned by Total Energy, the 4th largest corporation in the World

Incredibly low power loss in hot conditions (25% better almost any other panel)

Each of the 96 cells has it's own bypass circuit to reduce power losses from shade, soiling.

What's not so great about SunPower panels?

The price. A normal tier 1 brand panel like ET Solar, Canadian Solar, Jinko, GCL etc costs about $0.82 cents per watt. So if one of them were able to produce a 360W panel it would cost $295. The SunPower 360W panel costs $625..more than double the price. The E-Series 327W panel though is only 60% more.

Who would buy SunPower panels?

People who want to buy the best

People with unusual or small roof areas

People who are going to stay in their house for ever

Power loss caused by rising temperature.

All solar panels operate best when the air temperature is as close to zero °C as possible.
As it gets hot, panels lose power typically at a rate of about 0.4% per °C of temperature increase. On a 25 ° C day, a normal panel will lose 10% of it's power and 20% on a 40 ° day.

SunPower X Series panels lose 0.29% per °C, representing a loss of 7.25% on a 25°C day, and 11.6% on a 40°C day. The E series is not quite as good at 0.35% per °C but both provide a very significant improvement on normal, that means, day in, day out, SunPower panels WILL make a few per cent more power than a normal panel.

 

 

 


 


solar4ever.com.au is the web site for Good Day Mate Pty Ltd trading as SOLAR4EVER Company registered in WA on 26th October 2008 (A.C.N.133884938)

Contact Detail :


Solar4Ever
Telephone : (08) 6102 2527
Email: info@solar4ever.com.au