SunPower review

SunPower - Solar Panel Reviews

4.9

Based on 1006 ratings

Finn's SunPower Panels Review & Verdict

Finn Peacock has been a Chartered Electrical Engineer since 1998, and is ex-CSIRO

If you want solar panels that will likely outlast all others, spend the money on Sunpower. The unique, thick copper backing on their cells makes them tough as hell. 

But with most panels now coming with a 25-year warranty, you have to really value Sunpower's 40-year warranty (and be confident you'll be able to call on it for four decades) to justify the extra expense for these Rolls-Royce of solar panels.

SunPower Panels: Pros & Cons

  • Premium product with leading efficiency figures
  • Very long warranties available
  • Long established
  • Well-regarded relationship and support with Enphase
  • Expense
  • Efficiency margin has been eroded, the whole industry has caught up significantly
  • Who's going to honour the warranty at 40 years?

About SunPower

SunPower solar panels are produced by Maxeon Solar Technologies. This company has its headquarters in Singapore and manufacturing facilities in Malaysia, Mexico, and the Philippines.

There are two types of SunPower panels:

  • SunPower Performance: These panels are up to 21.1% efficient, with 25-year product and performance warranties.
  • SunPower Maxeon: These have an efficiency of up to 23%. This makes them one of the most efficient solar panels available. Their 40-year product and performance warranties are the longest around.

SunPower panels have been used in Australia for decades and have proven to be very reliable. They're also well-supported here. Because of this, Solarquotes has no problem recommending them.

If you're after the longest panel warranties around, then SunPower Maxeon are the way to go. But at the moment it's not clear if Maxeon Solar Technologies will still be around in the future to honour them.

Company History

SunPower was founded in 1985 in the United States by Richard Swanson. In 2011 a large portion of it was purchased by TotalEnergy, a French oil company that totally wanted to diversify out of oil. In August 2020 the solar panel manufacturing side of the business was separated from the US installation side and became a separate company -- Maxeon Solar Technologies. While no longer called SunPower, they still produce SunPower brand panels. This company is responsible for the warranties of any existing SunPower panels you may have.

There is still a company called SunPower in the United States, but they don't manufacture panels and have no presence in Australia. So long as you don't confuse them with Maxeon Solar Technologies and their SunPower brand panels, they can be safely ignored.

While the company name has changed, SunPower panels have been around for nearly 40 years. This is far longer than most solar panel manufacturers and almost as long as Maxeon's warranties last.

SunPower Production

Maxeon Solar Technologies has its own panel manufacturing capacity, but most SunPower Performance panels are produced by an entirely different company as part of a joint venture. All SunPower Performance panels sold in Australia are likely to have been produced by Huansheng JV in China.

In 2023 Maxeon Solar Technologies had enough panel production capacity of their own to potentially manufacture over 2.5 gigawatts (GW) of solar panels per year -- around 0.7GW of Performance and 1.8GW Maxeon. Of the Maxeon capacity, close to 0.5GW was for their latest Maxeon 6 panels.

In 2022 they made 2.348GW of panels. That's a lot, but these days not enough to make them a large manufacturer. Longi Solar is the world's largest solar company at the moment and in 2022 they produced 20 times as much.

Huansheng JV makes the majority of SunPower Performance panels. At the end of 2022 had the capacity to manufacture up to 12GW per year and this may reach 20GW by the end of 2023. So their production of SunPower Performance panels dwarfs Maxeon Solar Technologies output.

Employees

At the start of 2023, Maxeon Solar Technologies had the full-time equivalent of 5,344 employees and 28 were in Australia.

Manufacturing Locations

According to their 2022 annual report, Maxeon Solar Technologies has factories in three countries:

  • Malaysia: 1 solar manufacturing facility
  • Philippines: 1 solar cell manufacturing facility and 1 cell manufacturing support and storage facility.
  • Mexico: 2 solar panel assembly factories

The Malaysian factory produces solar cells and was upgraded in the first half of 2023 to produce 1.8 GW per year. It's in the city of Malacca where -- provided you avoid the hot stuff -- you can get great food even though in Dutch Malacca means "bad delicious". (Now I think about it, that's actually a pretty good description of the place...)

The Philippines manufacturing plant is in the city of Binan, south of Manilla. Binan isn't famous for any specific food, but you'll have no problem getting stuff with bananas in it there.

The Mexican facilities produce both Performance and Maxeon panels. Expansions at their Baja Mexico plant were completed in June 2023 and allow it to produce up to 1.8GW of Performance panels annually. We generally think of California as being part of the United States, but this part of Mexico is also called California. If a salesperson tells you Maxeon panels are made in California without mentioning it's the Mexican part or just says "North America" that's evidence they're not a trustworthy person.

Maxeon Solar Technologies has also announced they'll spend over USD$1 billion on a factory in New Mexico outside of Albuquerque. If it goes ahead, it will be completed in 2025 and produce solar cells and SunPower Performance panels. It will have 3GW of production capacity -- or maybe 4.5GW if they decide demand will be high enough.

Huansheng JV, the Chinese company that produces most SunPower Performance panels, appears to have its headquarters in Yixing and may have manufacturing facilities in Tianjin. Yixing is a "small" city of one million, while Tianjin has 13 million -- half of Australia's population.

Performance Panels

SunPower Performance panels are different from most, as they are shingle panels. These days it's common to cut solar cells in half to make half-cut panels. But shingle panels go further and cells are cut into four or five strips that are placed on panels so they slightly overlap each other. This hides the electrical contacts under the overlap so they don't block sunlight from hitting the cells.

SunPower Performance panel efficiency ranges from 18.9% to 21.1%. While that's not bad, it's not exceptional these days.

While not currently shown on their Australian site, Maxeon Solar Technologies produces bifacial Performance panels that are approved for use in Australia. These can take advantage of light that hits both the front and rear of the panel. This can help when they're mounted in tilt frames but doesn't give an advantage to panels installed flat on normal roofs.

Maxeon Panels

Maxeon panels currently range from Maxeon 3 to Maxeon 6, with higher numbers belonging to the newer and more advanced versions. A Maxeon 7 panel is planned for future production.

The solar cells in Maxeon panels are unique in having a copper backing that contributes to their durability. They also want you to know they have no grid lines on the surface of the cells, which is a helpful but not exceptional feature.

Maxeon panels are good at resisting the effects of partial shade. When a panel is partially shaded it generally doesn't just lose output from the shaded cells but unshaded ones can have their output reduced as well. This effect is minimized in SunPower Maxeon panels, so they can be a good choice in locations where they'll suffer partial shading for a significant part of the day.

Efficiency ranges from 20.7% for some Maxeon 3 panels up to an excellent 23% for the most efficient Maxeon 6 panel. While they used to lead the world in efficiency, other manufacturers are now catching up. I'm writing this in September 2023 and if you're after 23% efficiency you currently have a choice between SunPower Maxeon 6 and Longi Hi-MO6 "Scientist" panels.

Heat Resistance

High temperatures lower solar panel efficiency. For SunPower Performance panels it declines by 0.34% for each degree over 25°C. This means they provide 6.8% less power at 45°C than at 25°C. While this loss isn't good, it is slightly less than most panels on the market.

Maxeon panels can have excellent heat resistance. While it varies by panel, for their Maxeon 6 panels it's 0.29% per degree over 25°C. So at 45°C they would produce 5.8% less power than at 25°C. This may make it sound as though 1 kilowatt of the most heat-resistant Maxeon panel would produce 1% more energy than 1 kilowatt of Performance panels, but over a year -- thanks to low temperatures in winter and early in the morning -- the actual difference won't be that large.

2 Warranties

Solar panels come with two warranties:

  • Product warranties that cover faults and defects in manufacturing and materials.
  • Performance warranties that specify how much they are permitted to decline in capacity each year.

Product and performance warranties are the same length for SunPower panels, which helps keep things simple.

Product Warranties

SunPower Performance panels come with a 25-year product warranty. While not exceptional these days, it's still a long time. SunPower Maxeon panels do even better and have a 40-year product warranty -- the longest of any solar panel.

Performance Warranties

The performance warranty of SunPower Performance panels promises they'll lose no more than 2% of capacity in their first year and no more than 0.45% each subsequent year. So at the end of their 25-year performance warranty, they'll still have a minimum of 87.2% of their original capacity. This is better than most panels on the market.

SunPower Maxeon panels have, by far, the best performance warranty I know of. It lasts for 40 years, rather than the 25 years most panels have, and allows a maximum of 2% capacity loss in the first year and no more than 0.25% in subsequent years. This means after 25 years a Maxeon panel will still have a minimum of 92% of its original capacity and after 40 years it will still have at least 88.25%.

According to Maxeon Solar Technologies, only 1 in 20,000 Maxeon panels have been returned under warranty. This suggests they are highly reliable. But note it is possible for companies to massage these numbers to make them appear better than they are.

Warranty Claims -- Contact Your Installer First

Ideally, you'll never have problems with SunPower panels. But if an issue arises, you should first contact the installer who provided them. If they're no longer around then you can contact Maxeon Solar Technologies directly.

Maxeon Solar Technologies: 1800 786 769

AC Panels

There are SunPower panels, both Performance and Maxeon, that come with Enphase microinverters already attached. These are called AC panels and they simplify the installation of a microinverter solar system.

Lightweight Panels Are Coming... Maybe

SunPower have promised to make lightweight and flexible Maxeon panels called Maxeon Air that can be used on roofs that can't take the weight of normal panels. But while they were announced over 2 years ago, so far they've been a no-show.

SunPower Reserve Home Battery

Maxeon Solar Technologies markets a battery under the SunPower brand called the SunPower Reserve. Its details are on our Battery Comparison Table.

Financial Health

If you have 25 or 40-year warranties on your solar panels, you'll want the manufacturer to be around long-term so they can honour them. The installer who provided them has an obligation to provide support if a panel manufacturer goes under, but installers can disappear as well and the chance goes up if the manufacturer of many of the panels they've installed goes bust.

The bad news is the financial health of Maxeon Solar Technologies isn't nearly as good as it could be, so it's not clear they'll still be around in the future. At the start of 2023, they had a debt of USD$459 million. In September 2023 their market capitalization -- the value of shares traded on the stockmarket -- was only USD$750 million. The company owns considerable intellectual capital in the form of patents, but these have been put up as collateral for loans. Their 2022 annual report says:

"The existence of substantial indebtedness could adversely affect our business, financial condition, and results of operations, as well as our ability to meet our payment obligations under our debt commitments."

According to their annual report, they had significant losses over the past several years:

  • 2020: Net loss of USD$143 million
  • 2021: Net loss of USD$255 million
  • 2022: Net loss of USD$267 million

As solar panel prices have fallen dramatically in 2023 Maxeon Solar Technology's losses may be even higher this year. After the 2023 second quarter they announced 46% year-on-year revenue growth, but this is not inconsistent with running a loss. Because I'm not an accountant I can't say how serious their financial situation is but, to my untrained eye, it doesn't look good.

I'm not saying don't buy SunPower panels because the manufacturer's financial situation doesn't look good. But I will advise against buying them if you're not willing to take on the risk that their warranty support will disappear.

Executive compensation

Despite Maxeon Solar Technologies racking up losses lately, in 2022 the top seven executives shared USD$9.8 million in compensation between them. An average of over $2 million Australian each.

A Vote Of Confidence

SunPower panels are very popular with Australian installers. In the SolarQuotes Installers' Choice Awards, SunPower was voted second in the best solar panels in 2023 category and also achieved second place for best after-sales support.

My Recommendation

While I think there is a real possibility Maxeon Solar Technologies will go bust in the not too distant future, I would still be fine with installing SunPower panels on my roof due to their high reliability. The best type of warranty protection you can have is panels that are unlikely to ever require a warranty claim.

But note SunPower panels, especially Maxeon ones, are not low cost and it will be necessary to decide if they are worth the extra expense.

Reviewers report paying:
$5,612 - $11,500

For a

SunPower System

Depending on hardware choice and installation difficulty

SunPower has 16 solar panels in our database

Filter by:

Type of solar panel 
Wattage 
Panel Efficiency 
Approx. Cost/Watt 
Model number
Series
Wattage
Panel efficiency (%)
Approx Cost per Watt AUD Retail incl GST
Approx cost per panel AUD Retail incl GST
Panel technology
Country of manufacture
SPR-MAX5-415-E3-AC
Sunpower Maxeon 5 (AC)
415 W
22.2%
$1.45
$600
Monocrystalline
Malaysia/Mexico
SPR-MAX5-410-E3-AC
Sunpower Maxeon 5 (AC)
410 W
22.0%
$1.45
$600
Monocrystalline
Malaysia/Mexico
SPR-MAX5-400-E3-AC
Sunpower Maxeon 5 (AC)
400 W
21.5%
$1.45
$600
Monocrystalline
Malaysia/Mexico
SPR-MAX6-420-E3-AC
Sunpower Maxeon 6 (AC)
420 W
21.7%
$1.74
$765
Monocrystalline
Malaysia
SPR-MAX6-425-E3-AC
Sunpower Maxeon 6 (AC)
425 W
22.0%
$1.74
$765
Monocrystalline
Malaysia
SPR-MAX6-435-E3-AC
Sunpower Maxeon 6 (AC)
435 W
22.5%
$1.74
$765
Monocrystalline
Malaysia
SPR-MAX6-440-E3-AC
Sunpower Maxeon 6 (AC)
440 W
22.8%
$1.74
$765
Monocrystalline
Malaysia
SPR-P6-395-BLK
Sunpower P6
395 W
20.1%
$0.79
$328
Monocrystalline
China
SPR-P6-400-BLK
Sunpower P6
400 W
20.4%
$0.79
$328
Monocrystalline
China
SPR-P6-405-BLK
Sunpower P6
405 W
20.6%
$0.79
$328
Monocrystalline
China
SPR-P6-410-BLK
Sunpower P6
410 W
20.9%
$0.79
$328
Monocrystalline
China
SPR-P6-415-BLK
Sunpower P6
415 W
21.1%
$0.79
$328
Monocrystalline
China
SPR-MAX3-415
Sunpower Maxeon 3
415 W
21.9%
$1.18
$490
Monocrystalline
Malaysia/Mexico
SPR-MAX3-425
Sunpower Maxeon 3
425 W
22.4%
$1.18
$490
Monocrystalline
Malaysia/Mexico
SPR-MAX3-430
Sunpower Maxeon 3
430 W
22.7%
$1.18
$490
Monocrystalline
Malaysia/Mexico
SPR-MAX3-415-BLK
Sunpower Maxeon 3 (black)
415 W
21.9%
$1.18
$490
Monocrystalline
Malaysia/Mexico

 

SunPower Reviews (1006)

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  • 5 star 886
  • 4 star 106
  • 3 star 12
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  • 1 star 2

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One panel failed about six months ago due to impact from heavy object (rock?) but system continued to work at over 90% efficiency due to the built-in bypass in the Sunpower panel. A useful feature in series-linked panels.

Inverter Brand

Sungrow

System Cost

$10,000 to $12,500

System Size

13kW

Installed By

The Sunpower range of panels, seem to have a consistent high rating on the Solar Quotes web site graphics.
Sunpower combined with Enphase, looked like a good choice.

Inverter Brand

Enphase

System Cost

$12,500 to $15,000

System Size

10kW

Installed By

We installed forty SunPower Performance Series All Black 410w panels with a black Clenergy mounting system. They look fabulous. We are very impressed so far. High performance and great aesthetics. They look much better than all the panels on other houses in our street. They look sleek and expensive.

Inverter Brand

Sungrow

System Cost

More than $20,000

System Size

15kW

Installed By

Very impressed with the appearance of the SunPower, all black panels on the front of the house. I was originally worried about what they would look like but with the all black panels and the black mounting system it looks great.

Inverter Brand

SolarEdge

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

SPR-P3-37-BLK-E3-AC
Enphase P series Micro-inverter kit
Envoy S meter and Surge Diverter

These Sunpower panels are working well and monitoring of each panel is easy.

Inverter Brand

Enphase

System Cost

$10,000 to $12,500

System Size

9kW

Installed By

The Sunpower panels are the most visually appealing that we were able to source, we have had multiple comments from various people as to how good they look on the house compared to other brands. Performance of the panels is as per the output advice as advised on this site and by my supplier, A.G. Solar.

Inverter Brand

Enphase

System Cost

$15,000 to $20,000

System Size

15kW

Installed By

The panels were 16 off Sunpower Maxeon 3400W panels 25/25 Year Warranty.
In a split array of 8 facing NNE 4 facing NNW and a further 4 panels on another part of the roof also facing NNW.
The invoice was tax Invoice NO. 16878 dated 23 December 2020

Inverter Brand

Fronius

System Cost

$8,000 to $10,000

System Size

6.6kW

Installed By

We have installed 11kW (28 panels of Sunpower Maxeon 3). These replace an earlier 2kW system we bought in 2009, which will go to a country property. It was easier to install a new one than match different cell types and we needed a bigger and better inverter.

The solar panels are working perfectly and the grid connection was seamless, partly because they were replacing an existing system. The Solaredge inverter is giving us a lot of useful feedback on where we use electricity and when. The App works straight away once the system is on the grid.

The solar cells look great with a low profile. I think the extra cost for Sunpower will pay dividends in the long run.

System Cost

$15,000 to $20,000

System Size

10kW

Installed By

I am blown away by the Sunpower Maxeon Maxeon 5 AC 415W panels and Enphase IQ7A microinverters, which are now generating 5 times the output of the previous system at 10am and will likely peak at 6-7x later today. They even start generating in the very early morning and have excellent output in shaded or overcast/rainy conditions.
Data reported in the enphase monitoring app and portal regarding Imported and Exported kWh agrees with data extracted from my smart meter to within +-0.1 kWh - which is important as it means the system is working perfectly.

Inverter Brand

Enphase

System Cost

$15,000 to $20,000

System Size

13kW

Installed By

These Sunpower Black 370w panels are all black and look so good on the roof I cant stop looking at them. It's kind of like when you get a new car and you keep looking back at it after parking...such handsome panels!

Inverter Brand

SolarEdge

System Cost

$10,000 to $12,500

System Size

10kW

Installed By

As mentioned before, I wanted an aesthetically pleasing result due to resale. I’m confident thanks to these Sunpower panels and the use of black solar panel “rails”, end caps etc etc, that this is one of the best looking jobs ever installed.

That’s a big claim, but I know what products are out there and know that other installers are not that interested in keeping the customer happy. Truthfully this team went above and beyond to give us a good looking system. I believe it looks way better than the black colourbond itself. Pictures have been taken so check out the Solargain website or ring Rachael at Solargain Bundaberg, or do a drive by yourself. I’m also happy for you to ask me any questions.

Inverter Brand

Huawei

System Cost

More than $20,000

System Size

30kW

Installed By

The 10 year old panels, which are still operating efficiently, are SunPower.
The new panels are SunPower Maxeon 395W. Four panels face due east with Tigo optimisers and 8 panels face due west - no optimisers. After 12 months the panels are working very well. They have generated a total of 392 kWh over 12 months in Sydney. They are generating power even when overcast. Very happy with these panels.

Inverter Brand

SMA

System Cost

More than $20,000

System Size

5kW

Installed By

For optimal orientation of the panels, I have 6 panels visible from the front of my house. For this reason I wanted a sleek looking installation. Sunpower P series are one of the few panels that are completely black. REC Alpha do also have an all black version but for some reason their all black version is ridiculously more expensive than the version with a white backing sheet.

Inverter Brand

SMA

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

These were recommended by Green Sky - Sunpower P Series, which had just come on the market. After subsequent research and the performance of the panels with good production even on low sun days, I am very pleased with the choice of solar panel.s

Inverter Brand

Fronius

System Cost

$6,000 to $10,000

System Size

5kW

Installed By

These panels face true north at the exact angle for the latitude. The Sunpower panels work surprisingly well in low light, on hot days, and on cloudy days. The extra you pay for Sunpower will pay itself back in a couple of years in kWh generated in less than perfect conditions compared to medium quality panels. With the long 25 year parts and labour warranty which covers even installing new panels, it makes the total life costs and benefits better than using cheaper gear. One extra bonus is the standard of the glass is better for larger hail stones, and the weaknesses in most other panels caused by degredation due to undetected micro-cracks in bars due to hail is vastly reduced due to the Sunpower copper backing sheet rather than the use of fragile glued on aluminium foil bars which also cut down light reaching the silicon.

Inverter Brand

Fronius

System Cost

$10,000 to $12,500

System Size

6.6kW

Installed By

Panels are producing what we expected them to in winter with summer production now exceeding expectation. Amazing how much power the Sunpower Maxeon2 360W panel's produce even in twilight and very cloudy conditions. More expensive than other panels but performance specs for itself.

Inverter Brand

Fronius

System Cost

$15,000 to $20,000

System Size

7kW

Installed By

Bought 9.75kW = 30 x 325W Sunpower panels. These panels are were not as expensive as Sunpower's top of the range panels, but they still come with a 25 year warranty, which is why I chose them over other panel brands.

Inverter Brand

Fronius

System Cost

$10,000 to $12,500

System Size

10kW

Installed By

On a good day, I seem to produce around 85% of the total kW of the installed panels (1/3 of panels facing east and 2/3 of panels facing west). Last bill I got had a credit for the electricity charges, so I was quite happy about that. Not enough to also offset service to property charge and GST, but can't complain about a total monthly electricity bill of $13.38 (vs. around $210/mo before). Hoping that Sunpower panels will go the extra mile they boast about, as I paid a premium price and expect 'premium' performance from them over their lifetime.

Inverter Brand

Fronius

System Cost

$6,000 to $10,000

System Size

6kW

Installed By

Very pleased I spent more money to buy quality Sunpower solar panels. The performance of the panels has been really fantastic. Very, very pleased with them. Will likely add additional Sunpower panels in the future to take the system up to 15kw

Inverter Brand

Fronius

System Cost

$15,000 to $20,000

System Size

More than 6kW

Installed By

Fantastic is a word of mythological proportions and too easily bandied about. Very Good is how I would rate our 10 Sunpower E series panels recently installed by Mildura Solar.

System Cost

$6,000 to $10,000

System Size

3kW

Installed By

I had a 5.23 kW system installed using 16 Sunpower panels which all fitted neatly on my north facing roof. I received two other quotes for a similar sized system, however they both required 20 panels which would have meant panels on a different part of the roof. The sunpower panels gave me the same output with less panels and they are performing exceptionally well, even on wet overcast days.

Inverter Brand

Fronius

System Cost

$6,000 to $10,000

System Size

5kW

Installed By

Sunpower are exceptional quality. These panels are performing as good as the day they were installed. They are expensive (a potential drawback), however the panels are larger with the highest wattage so if you have limited roof space, this could be a viable option. If you're interested in a consistent performer in both output and efficiency, look no further.

Inverter Brand

SMA

System Cost

$15,000 to $20,000

System Size

3kW

Installed By

in 2011 We had Mark Group install these panels (with an SMA 2500 inverter which appears to have failed in April 2023) never had any problem with them in the 12 years.

System Cost

$10,000 to $12,500

System Size

2kW

Installed By

415 Sunpower x 30

Inverter Brand

Sungrow

System Cost

$12,500 to $15,000

System Size

13kW

Installed By

An incentive was offered by SAE Group Pty Ltd for this review. Learn more here.

Sunpower 370W panels have been on 38 mths now and have performed to stated expectations.

Inverter Brand

Fronius

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

These all black P series panels look great on our roof and are super reliable in getting the output as promised. I would highly recommend this series of solar panel.

Inverter Brand

Sungrow

System Size

8kW

Installed By

We went with the SunPower Performance 6 BLK panels, as they will be prominent from the street. These all-black panels are a premium but do look quite stunning.

Inverter Brand

Enphase

System Cost

$10,000 to $12,500

System Size

6.6kW

Installed By

Top of the line with factory-installed Enphase micro-inverters. The big selling point for me beyond their history and reputation, was the 40-year warranty on the panel, as well as 25 years for the inverters vs. 10 if you buy other panels.

Inverter Brand

Enphase

System Cost

More than $20,000

System Size

10kW

Installed By

Fantastic. I’ve really only had autumn/ winter generation. Very happy with east f west facing panels. Gives a regular flow during the day for my 1 person house. Although the top wattage Maxeon panels were not available at installation I got an extra panel fir a similar price. Being near the coast Maxeon were salt corrosion rated which others on my very short list dud not state.

Inverter Brand

SolarEdge

System Cost

$12,500 to $15,000

System Size

6kW

Installed By

Penrith Solar Centre use SunPower Performance panels, which is a high grade solar panel. We wanted high quality performing solar panels.

Inverter Brand

Enphase

System Cost

$15,000 to $20,000

System Size

13kW

Installed By

Have had Sunpower panels since 2019 and am really happy with the quality and performance of the panels.

Inverter Brand

Enphase

System Size

2kW

Installed By

Sunpower Maxeon 6 AC - excellent quality panel and looks good in black frame

Inverter Brand

Enphase

System Cost

More than $20,000

System Size

15kW

Installed By

Hi highly recommended the sunpower solar system , awesome

Inverter Brand

Fronius

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

Bought the Maxeon 6 for their 40 year warranty and reliability, even though they cost more. This is an installation to last me through my retirement so I wanted to do it just once.

Inverter Brand

Enphase

System Cost

More than $20,000

System Size

13kW

Installed By

These black panels with integrated Enphase micro-inverters look nice on the roof and also fitted our small and articulated roof well. The panels have been installed for a month now and I am happy with the production which meets up with what was predicted with the quotes.

Inverter Brand

Enphase

System Cost

$12,500 to $15,000

System Size

8kW

Installed By

24 x 380W Maxeon SPR-P3-380-BLK
The panels are ranked as one of the highest performing , the power output is consistent across all of the panels - no poor performers in my array.

Inverter Brand

Enphase

System Cost

$12,500 to $15,000

System Size

9kW

Installed By

No issues so far with the panels
Sunpower P3 panels installed on the shed
Trina Vertex S panels installed on the house

Inverter Brand

Fronius

System Cost

$15,000 to $20,000

System Size

20kW

Installed By

Our first electric bill after install was greatly reduced, but not quite as I had hoped. This was mainly due to the high level of rain we've had this year. It still saved nearly $200 for the quarter. They don't tell you that your electric company will change your plan and charge you nearly double for your power uses and give you maybe 7c a kW for the energy they take back. I looked long and hard to find a tolerable plan. But hey, the solar panels work.

Inverter Brand

Enphase

System Cost

$8,000 to $10,000

System Size

6.6kW

Installed By

I went with top tier panels and solar analytics as 30 of the panels are flat on my flat roof, the system has been performaing as expected by the solar analytics algorithm, having that will let me know when I need to get up on the roof and clean them.

Inverter Brand

Fronius

System Cost

More than $20,000

System Size

20kW

Installed By

410W Sunpower Maxeon 5 AC. Most efficient available. 25 year warranty.

Inverter Brand

Enphase

System Cost

$8,000 to $10,000

System Size

5kW

Installed By

All working as expected. Even though I have 15 panels my friend solar has 18 of the exact same panels but I am producing slightly more power or equivalent power. Goes to who how important your aspect is.

Inverter Brand

Enphase

System Cost

$6,000 to $8,000

System Size

5kW

Installed By

Met my needs to place panels so I can still fit a skylight at a later date.
Internal roof wiring was run so potential roof space can still be used for a storage later on.
Roof DC isolation fitted with an aluminium sun shade

Inverter Brand

SolarEdge

System Cost

$6,000 to $8,000

System Size

6.6kW

Installed By

Most panels face north at a 34 Deg angle. Some face West, also at 34 Deg. Some of the north facing panels are in shade for part of the day and produce about 60% of the power of those that have no shading. The West facing panels generate almost as much power as the north facing panels. On a sunny day, peak power in the middle of the day is around 5.5 kW.
On a day with full sunshine in December/January the system produces 36 to 39 kWh.

Inverter Brand

Enphase

System Cost

$10,000 to $12,500

System Size

7kW

Installed By

The panels are great. Good tier brand that are worth paying extra for. I have heard too many stories of cheaper brands that fail too soon, so definitely paying a little extra for quality.

Inverter Brand

Enphase

System Cost

$6,000 to $8,000

System Size

5kW

Installed By

Our supplier provided details about how this efficient, smaller sized panel would be the best fit for the space I had. It ended up being the most expensive option but we plan for this to be our forever house so we could look forward to the projected long term efficiency claims which were class leading. Update. It is mid November and we are regularly getting 50+ kwh out of our 7kw system.

Inverter Brand

Sungrow

System Cost

$10,000 to $12,500

System Size

7kW

Installed By

We went for Maxeon 5 by Sunpower - very high efficiency, good lifespan, low rate of degradation (and with integrated microinverters). So far, they have performed excellently.

Inverter Brand

Enphase

System Cost

More than $20,000

System Size

13kW

Installed By

Installer broke a number of tiles during installation which were replaced with spare tiles I had on hand. Two other clients I recommended complained to me about the number of tiles broken by First Choice.

Inverter Brand

Fronius

System Cost

$4,000 to $6,000

System Size

6.6kW

Installed By

There seem to be no problems. Judging by the fact that the inverter maxes out at 6 kw/h for a large part of each fine summer day, it would appear that the panels must be producing at something approaching their stated max capacity of 7.9 during those periods.

Inverter Brand

Fronius

System Cost

$8,000 to $10,000

System Size

8kW

Installed By

This is the second home we've had Sunpower panels installed at.
The energy production is high and even on overcast days is still reasonable.

Inverter Brand

Fronius

System Cost

$8,000 to $10,000

System Size

6.6kW

Installed By

They produce good amount of energy, they look good on the roof, (all black, nothing else) they have 25 years of warranty with minimal efficiency decrease in years. We're pretty happy with our decision.

Inverter Brand

Huawei

System Cost

$10,000 to $12,500

System Size

13kW

Installed By

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