Silfab vs Mission Solar: US-Made Panels (2026)

Last updated: February 1, 2026

The two leading US solar panel manufacturers compared. Silfab vs Mission Solar on efficiency, warranty, ARRA compliance, and value.

Silfab and Mission Solar are the two prominent US-based solar panel manufacturers. Silfab offers 4 models up to 21.8% efficiency, manufactured in United States. Mission Solar offers 3 models up to 21.0% efficiency, manufactured in United States. Both brands are important for ARRA/Buy America compliance on government-funded projects.

Key Takeaways

• Silfab: 4 models, up to 21.8% efficiency, made in United States
• Mission Solar: 3 models, up to 21.0% efficiency, made in United States
• Both qualify for ARRA/Buy America Act compliance
• Important for government, military, and publicly-funded solar projects
• US manufacturing may qualify for IRA domestic content tax credit bonus
• Pricing is typically 10-20% higher than imports but may be offset by incentives

Featured Models

Silfab SIL-500-NX 500W

Panel

Silfab SIL-500-NX is a US-manufactured N-type TOPCon panel delivering 500W with domestic production benefits and a 25-ye...

21.8% eff 500W 25yr warranty

Silfab SIL-410-BG 410W

Panel

The SIL-410-BG is Silfab's all-black residential PERC panel offering 410W with US manufacturing and a 25-year warranty....

21.2% eff 410W 25yr warranty

Mission Solar MSE415

Panel

Mission Solar MSE415 is a US-manufactured PERC panel delivering 415W, designed and assembled in San Antonio, Texas....

21% eff 415W 25yr warranty

Mission Solar MSE400

Panel

The MSE400 delivers 400W from Mission Solar's Texas manufacturing facility with a 25-year comprehensive warranty....

20.6% eff 400W 25yr warranty

Frequently Asked Questions

Why buy US-made solar panels?

Three main reasons: (1) ARRA/Buy America compliance required for government-funded projects, (2) potential IRA domestic content bonus tax credits (additional 10% on top of the base 30%), (3) supporting domestic manufacturing and shorter supply chains. For residential buyers without compliance requirements, the value depends on the price premium and available incentives.

How do US-made panels compare to imports on quality?

US-made panels from Silfab and Mission Solar are comparable in quality to Tier-1 imports. Efficiency ratings are competitive (though typically not the absolute highest), and warranties are strong. The main trade-off is a modest price premium due to higher domestic manufacturing costs.