Longi vs Thornova Solar Panels: What BC Homeowners Need to Know

In British Columbia, where solar adoption is rising steadily, two names are standing out in residential and commercial solar quotes — Longi Solar and Thornova Solar. Both offer high-performing, Tier 1 solar panels, but each comes with its own unique strengths. At True Value Energy, we believe in educating our customers first — so this guide isn’t about picking a “winner,” but helping you make a confident, informed decision.

Who Are They?

Longi SolarLongi, founded in 2000 and headquartered in China, is one of the largest and most well-known solar manufacturers in the world. Known for its innovation in monocrystalline PERC technology, Longi has a reputation for high-efficiency panels at a competitive price point.

Thornova SolarThornova is a newer name in the global market but is gaining rapid traction, especially in North America. They manufacture in both the U.S. and Vietnam, with a strong focus on high-power output, sleek design, and fast delivery cycles, making them an appealing choice for BC installers.

Technology & Efficiency

Longi

• Monocrystalline PERC and bifacial options

• High efficiency (typically 20.4% to 22%)

• Industry-proven reliability and thermal stability

• Leading R&D in wafer and cell design

Thornova

• Monocrystalline N-type and PERC modules

• High efficiency (up to 22.3%)

• Designed for durability in harsh climates

• Faster low-light performance — great for cloudy regions like Vancouver Island or the Lower Mainland

Aesthetics & Build Quality

Both brands offer all-black modules — ideal for homeowners seeking a clean, modern aesthetic.

• Longi panels are known for sleek black-on-black options with minimal branding.

• Thornova places emphasis on visual appeal and low-glare glass, making them a favorite for upscale residential installations.

Warranty & Support

Brand	Product Warranty	Performance Warranty	Key Notes
Longi	12–15 years	25–30 years	Backed by global scale and long-term performance data
Thornova	15 years	30 years	Slightly stronger warranty terms; faster support response within North America

Supply Chain & Availability in BC

• Longi panels are widely available across Canada through major distributors.

• Thornova has positioned itself with strong Canadian supply relationships, and many BC solar installers prefer them due to faster delivery timelines and localized warehousing.

Cost Consideration

While pricing can vary based on project size and market conditions:

• Longi generally offers a lower cost per watt, especially on larger system sizes.

• Thornova, while slightly higher in price, justifies the premium with design appeal, robust warranty, and quick availability.

Final Thoughts from True Value Energy

At True Value Energy, we don’t push brands — we present options. We assess your roof, energy needs, and design preferences, then help you compare the best solar panel options for your project.

Whether you go with Longi, Thornova, or another Tier 1 brand, our commitment remains the same: quality, transparency, and service across all of BC.

Need help deciding which panel is right for your home or business?Let’s talk. We offer free education and zero-pressure consultations — because informed choices make the brightest results.