Mid-Range★★★★4.3/5

Silfab Solar Solar Panels

4 panel models | Up to 22% efficiency | United States/Canada

22%

Top Efficiency

440W

Max Wattage

30yr

Performance Warranty

2010

Founded

About Silfab Solar

Silfab Solar is a North American solar panel manufacturer with factories in Washington state and Ontario, Canada. The company focuses on producing high-quality, American-made panels using automated manufacturing processes, making it a top choice for customers who want domestically produced solar equipment.

Pros

Made in North America (US and Canada factories)
High-quality automated manufacturing processes
Strong product warranty and customer support
Qualifies for domestic content bonus under IRA

Cons

Smaller scale than major global manufacturers
Product lineup is less extensive than larger brands
Pricing slightly above imported alternatives

Silfab Solar Solar Panel Models

Model	Wattage	Efficiency	Cell Type	Price/Watt	Warranty
SIL-420-BG Elite	420W	21.4%	Monocrystalline	$0.85-$1.25	25/30yr
SIL-400-BG Prime	400W	20.5%	Monocrystalline	$0.75-$1.10	25/30yr
SIL-380-NL Commercial	380W	20.2%	Monocrystalline	$0.70-$1.00	15/25yr
SIL-440-NU Elite HJT	440W	22%	HJT	$0.95-$1.35	25/30yr

Detailed Specifications

SIL-420-BG Elite

Wattage

420W

Efficiency

21.4%

Cell Technology

Monocrystalline

Dimensions

74.8 x 41.5 x 1.4 in

Weight

44.1 lbs

Temperature Coefficient

-0.32%/°C

Degradation Rate

0.3%/year

Product Warranty

25 years

Performance Warranty

30 years

SIL-400-BG Prime

Wattage

400W

Efficiency

20.5%

Cell Technology

Monocrystalline

Dimensions

74.8 x 41.5 x 1.4 in

Weight

43 lbs

Temperature Coefficient

-0.34%/°C

Degradation Rate

0.3%/year

Product Warranty

25 years

Performance Warranty

30 years

SIL-380-NL Commercial

Wattage

380W

Efficiency

20.2%

Cell Technology

Monocrystalline

Dimensions

74.8 x 41.5 x 1.4 in

Weight

42.5 lbs

Temperature Coefficient

-0.35%/°C

Degradation Rate

0.35%/year

Product Warranty

15 years

Performance Warranty

25 years

SIL-440-NU Elite HJT

Wattage

440W

Efficiency

22%

Cell Technology

HJT

Dimensions

76.2 x 41.5 x 1.2 in

Weight

45 lbs

Temperature Coefficient

-0.26%/°C

Degradation Rate

0.25%/year

Product Warranty

25 years

Performance Warranty

30 years

Silfab Solar Solar Panels FAQ

Silfab Solar is a mid-range-tier solar panel manufacturer headquartered in United States/Canada, rated 4.3/5 by industry experts. Their panels offer up to 22% efficiency with 30-year performance warranties. Made in North America (US and Canada factories).

Silfab Solar solar panels range from $0.95 to $1.25 per watt. For a typical 6kW system, that's approximately $5,100 to $7,500 before the 30% federal tax credit.

The most efficient Silfab Solar panel is the SIL-440-NU Elite HJT at 22% efficiency and 440W. Higher efficiency panels are ideal for homes with limited roof space.

Silfab Solar offers 25-year product warranties and 30-year performance warranties on their solar panels. The performance warranty guarantees at least 92.5% output after 30 years.