Premium★★★★★4.7/5

SunPower Solar Panels

4 panel models | Up to 24.1% efficiency | United States

24.1%

Top Efficiency

440W

Max Wattage

25yr

Performance Warranty

1985

Founded

About SunPower

SunPower is one of the most recognized names in residential solar, known for industry-leading efficiency and sleek all-black panel designs. After spinning off its manufacturing arm as Maxeon Solar Technologies, SunPower focuses on residential solar solutions and installations across the United States.

Pros

Industry-leading panel efficiency up to 22.8%
Comprehensive 25-year product and performance warranty
Sleek all-black aesthetic design
Strong brand reputation and dealer network

Cons

Premium pricing significantly above market average
Limited availability outside authorized dealer network
Manufacturing now handled by Maxeon (separate company)

SunPower Solar Panel Models

Model	Wattage	Efficiency	Cell Type	Price/Watt	Warranty
Maxeon 7	440W	24.1%	HJT	$1.20-$1.70	25/25yr
Maxeon 6	420W	22.8%	Monocrystalline	$1.10-$1.55	25/25yr
Performance 6	410W	21.5%	Monocrystalline	$0.95-$1.35	25/25yr
Maxeon 5 AC	415W	22.2%	Monocrystalline	$1.15-$1.60	25/25yr

Detailed Specifications

Maxeon 7

Wattage

440W

Efficiency

24.1%

Cell Technology

HJT

Dimensions

74.6 x 41.5 x 1.2 in

Weight

46.5 lbs

Temperature Coefficient

-0.27%/°C

Degradation Rate

0.25%/year

Product Warranty

25 years

Performance Warranty

25 years

Maxeon 6

Wattage

420W

Efficiency

22.8%

Cell Technology

Monocrystalline

Dimensions

74.2 x 41.2 x 1.6 in

Weight

47 lbs

Temperature Coefficient

-0.29%/°C

Degradation Rate

0.25%/year

Product Warranty

25 years

Performance Warranty

25 years

Performance 6

Wattage

410W

Efficiency

21.5%

Cell Technology

Monocrystalline

Dimensions

74.2 x 41.2 x 1.6 in

Weight

46 lbs

Temperature Coefficient

-0.3%/°C

Degradation Rate

0.25%/year

Product Warranty

25 years

Performance Warranty

25 years

Maxeon 5 AC

Wattage

415W

Efficiency

22.2%

Cell Technology

Monocrystalline

Dimensions

74.2 x 41.2 x 1.6 in

Weight

48.5 lbs

Temperature Coefficient

-0.29%/°C

Degradation Rate

0.25%/year

Product Warranty

25 years

Performance Warranty

25 years

SunPower Solar Panels FAQ

SunPower is a premium-tier solar panel manufacturer headquartered in United States, rated 4.7/5 by industry experts. Their panels offer up to 24.1% efficiency with 25-year performance warranties. Industry-leading panel efficiency up to 22.8%.

SunPower solar panels range from $1.15 to $1.70 per watt. For a typical 6kW system, that's approximately $7,200 to $10,200 before the 30% federal tax credit.

The most efficient SunPower panel is the Maxeon 7 at 24.1% efficiency and 440W. Higher efficiency panels are ideal for homes with limited roof space.

SunPower offers 25-year product warranties and 25-year performance warranties on their solar panels. The performance warranty guarantees at least 93.8% output after 25 years.