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Canadian Solar vs VNS Bulgaria - solar panel manufacturer comparison

Canadian Solar
Canada Founded 2001 Tier 1
Read the Canadian Solar review
VS
VNS Bulgaria
Bulgaria Founded 2009
Read the VNS Bulgaria review
At a glance

Canadian Solar has the broader catalog (292 vs 0 models). Canadian Solar leans bifacial (46% of lineup).

Both catalogues are read from the manufacturers' own datasheets. A brand is not scored against the market here, only against the other brand on this page.

Panel models
292 0
Highest power
730 Wp 0 Wp
Best efficiency
24.4% -
Average efficiency
20.7% -
Bifacial share
46% 0%
Average warranty
28 yrs -
01

The two companies

Company facts, not datasheet figures
Canadian Solar

Canadian Solar Inc. is a global renewable energy company founded in 2001. Headquartered in Kitchener, Ontario, it manufactures solar PV modules and provides battery energy storage solutions. The company also develops utility-scale solar power and battery energy storage projects.

Founded
2001
Headquarters
Kitchener, Canada
Annual capacity
51 GW/year
Employees
17,113
Tier 1 bankable
Yes
VNS Bulgaria

VNS Bulgaria Ltd. was established in 2009 and focuses on manufacturing and construction of solar street lighting, solar park lighting, LED street lamps, photovoltaic systems, and various other solar systems. The company utilizes innovative technologies in its designs and constructions and has completed over 1000...

Founded
2009
Headquarters
Kurdjali, Bulgaria
Annual capacity
null GW/year
Employees
null
02

Catalogue against catalogue

Averages over every model in the database
Metric Canadian Solar VNS Bulgaria
Catalog & Power
Panel Models 292+292 0
Max Power 730 W+730 W 0 W
Avg Power 472 W+472 W 0 W
Efficiency
Max Efficiency 24.40% -
Avg Efficiency 20.66% -
Reliability & Warranty
Avg Temp Coefficient -0.331%/°C -
Bifacial Share 133 (46%)+46 pp 0 (0%)
Avg Warranty 28.2 yrs -

An average over a catalogue describes the range a manufacturer publishes, not the module you would buy. A brand with two flagship panels and eighty older ones averages worse than one that has retired its back catalogue.

03

What each of them builds

Cell technology across the market
Efficiency spread
Share of each catalogue in every efficiency band

Canadian Solar skews to higher efficiency: 13% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Canadian Solar offers more 600W+ panels (24% of lineup)

Canadian Solar cell technology
Share of their models by cell architecture

Dominant cell tech: <strong>PERC</strong> (67%)

VNS Bulgaria cell technology
Share of their models by cell architecture
04

The flagships

Highest-power models from each brand
VNS Bulgaria all models
No panels from this manufacturer are in the database yet.
05

Written summary

Checking cache...

Canadian Solar is a publicly traded solar manufacturer founded in 2001 and headquartered in Guelph, Ontario, Canada, with its primary manufacturing base spread across China and Southeast Asia. The company has been listed on NASDAQ since 2006 and was named to S&P Global Commodity Insights' inaugural 2025 Tier 1 Cleantech Companies list for both photovoltaic modules and battery energy storage systems. Its planned module manufacturing capacity stood at approximately 61 GW as of late 2025, placing it firmly among the handful of truly global-scale solar producers. VNS Bulgaria, by contrast, is a Bulgarian-based company classified by ENF Solar as a distributor and wholesaler - not a panel manufacturer - carrying products from LONGi, Jinko, Trina, Canadian Solar, Risen, and JA Solar, among others. No evidence of independent Tier 1 recognition, dedicated cell or wafer production, or a published gigawatt-scale shipment record emerged from available sources. Canadian Solar holds an overwhelmingly stronger institutional footprint by any conventional bankability measure.

Canadian Solar's own product line spans three confirmed technology tiers: the HiKu series based on PERC cell technology for residential and small-scale installations, the TOPHiKu series using monofacial N-type TOPCon cells suited to commercial and self-consumption projects, and the TOPBiHiKu series featuring bifacial N-type TOPCon designed for utility-scale ground mounts. SolarReviews ranked it the top solar panel brand of 2025, and EnergySage reports the TOPHiKu6 as the most commonly quoted panel on their platform. VNS Bulgaria's panel datasheets on ENF reference models that correspond to LONGi and Trina OEM lines, suggesting the company either relabels OEM product or simply lists distributed inventory under its own name. No independent performance reviews or cell-technology disclosures specific to a VNS Bulgaria-branded module were found.

For a typical buyer in 2025, Canadian Solar is the clear default: it offers a documented 25-year product warranty, a 30-year performance guarantee, proven installer networks across most major markets, and a bankability record that satisfies project finance requirements. VNS Bulgaria may serve a legitimate procurement function for buyers in Bulgaria or nearby Balkan markets seeking aggregated access to multiple brands, but it is not a manufacturer in the same sense and the two entities are not meaningfully interchangeable.

Generated by Claude Sonnet · 2026-06-22

06

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Something missing from a catalogue? Both lists are built from the datasheets in the database. If a model is absent, it has not been ingested yet.

Shop prices: See 40 Canadian Solar offers

Comparisons are computed from manufacturer datasheets held in the ComparePV database and may not reflect a brand's complete current lineup. Nothing on this page is paid placement.