The 10 Largest Solar Module Companies in the World (2026)

Solar module manufacturing passed a milestone in 2025, with global capacity topping 1,000 GW. While hundreds of solar module companies operate worldwide, ten producers control more than 85% of nameplate output. Almost all of them are anchored in China, with one prominent U.S. exception. Below, we rank the largest by annual production capacity—no forecasts, just nameplate numbers drawn from corporate filings and verified supplier statements.

Methodology & Ranking Criteria

We rank by one metric: annual module production capacity in gigawatts. That’s the maximum output a manufacturer’s fabrication lines can sustain per year under standard test conditions for crystalline-silicon or thin-film photovoltaic modules. Data is sourced from corporate filings, industry association reports, and verified supplier statements from the 2025–2026 financial period. Where a company runs wafer, cell, and module plants across multiple geographies, the aggregate figure is used. No analyst estimates or unofficial data points make the cut. The list includes both vertically integrated producers and pure-play module assemblers, provided their module capacity qualifies for the top ten.

Data Sources and Limitations

All capacity figures are self-reported by the solar module companies in their annual reports, investor presentations, or official factory audit summaries. We cross-reference these with disclosures from the China Photovoltaic Industry Association (CPIA) and international trade bodies where available. Nameplate capacity represents the theoretical maximum; actual production volumes often run 10–30% lower due to maintenance, demand cycles, and cell supply bottlenecks. First Solar, for example, produced about 18 GW in 2025 on a 25 GW capacity base—a utilization gap common across the industry.

Expert nuance: Nameplate figures can include assembly lines that are still ramping up. A manufacturer might announce a new 5 GW factory, but full output may be 12–18 months away. When comparing solar module companies for procurement, always check trailing twelve-month shipment data alongside stated capacity.

Detailed Profiles: Companies #1–#5

If you’re sourcing modules for a multi-gigawatt utility pipeline, you’ll encounter four crystalline-silicon giants and one thin-film outlier in the top tier. The choice between them often hinges on efficiency, degradation profile, and regional manufacturing presence—not just raw capacity.

#1: LONGi Green Energy

130 GW of annual module capacity puts LONGi Green Energy in first place. Founded in 2000 and headquartered in Xi’an, China, the company built its dominance on monocrystalline wafers, cells, and bifacial modules spanning p-type PERC and advanced n-type heterojunction platforms. Its wafer-to-module integration extends across manufacturing bases in China, Malaysia, and Vietnam. In 2025 alone, LONGi supplied more than 46 GW of modules to utility-scale projects—including a 2.6 GW delivery to a single solar park in the Middle East. Module efficiency for its Hi-MO 7 series tops 22.5% under standard test conditions.

#2: Trina Solar

Trina Solar’s Vertex N modules hit front-side efficiencies above 23%, and in 2025 the company shipped 38 GW. Not bad for a firm founded in Changzhou back in 1997. Now operating 12 factories in China, Thailand, and Vietnam, Trina holds an annual module capacity of 105 GW. It produces bifacial modules, n-type TOPCon cells, and integrated solar-plus-storage solutions, with volumes flowing into European PPAs and Australian solar farms. The company’s dedicated R&D centre sits in Shanghai.

#3: Jinko Solar

Jinko Solar cracked 100 GW of capacity in 2026. Founded in 2006 and based in Shanghai, the tier-1 supplier is known for its n-type Tiger Neo panels using TOPCon technology, delivering 23.2% module efficiency. In 2025 it produced 35 GW of modules, much of it destined for utility-scale developers in Latin America, the Middle East, and sub-Saharan Africa. The manufacturing footprint runs deep: ingot, wafer, cell, and module production across China, Malaysia, and the United States. Jinko modules also appear in niche applications—floating arrays in Singapore, large ground-mount projects in Brazil.

#4: Canadian Solar

An 82 GW annual module capacity puts Canadian Solar in fourth place. Founded in 2001 in Guelph, Ontario, the company manufactures both bifacial and monofacial modules using PERC and heterojunction cell architectures, with its utility-scale HiKu7 CS7N-650 modules reaching 21.9% efficiency. Canadian Solar shipped 30 GW in 2025. Its Texas module assembly facility, operational since late 2023, supplies the American market directly. Alongside manufacturing, the company holds a project development pipeline.

#5: First Solar

First Solar is the only thin-film cadmium telluride (CdTe) manufacturer in the top five. Headquartered in Tempe, Arizona and founded in 1999, it operates an annual module capacity of 25 GW—a figure that looks modest next to the crystalline giants but is backed by a booked backlog exceeding 70 GW. The company’s Series 7 modules achieve 19.7% efficiency and are supplied exclusively to utility-scale projects. Manufacturing spans Ohio, Alabama, India, and Malaysia, with a new 3.5 GW facility in Louisiana reaching commercial operations in early 2026. First Solar produced approximately 18 GW of modules in 2025.

Remaining Top 10: Companies #6–#10

Rank	Company	Headquarters	2026 Module Capacity (GW)	Primary Technology
6	JA Solar	Beijing, China	78	Bifacial PERC, TOPCon
7	Qcells (Hanwha)	Seoul, South Korea	45	Bifacial PERC, TOPCon
8	Risen Energy	Ningbo, China	42	Heterojunction, Bifacial
9	Suntech Power	Wuxi, China	35	Monocrystalline PERC
10	DMEGC Solar	Dongyang, China	30	Bifacial PERC, TOPCon

JA Solar sits at 78 GW of capacity, making it a tier-1 crystalline-silicon supplier whose bifacial PERC and TOPCon modules turn up in Asia-Pacific solar farms.

Qcells, the only Korean-headquartered manufacturer in the top ten, runs a US factory footprint in Georgia and supplies modules to utility-scale and residential markets under long-term PPAs.

Risen Energy leans hard into heterojunction technology, pushing module efficiencies past 23%. The company delivers utility-scale modules across Southeast Asia and the Middle East.

Suntech Power and DMEGC Solar each operate at scale within China’s domestic rooftop and utility markets, with export shipments reaching Africa and South America.

How to Evaluate Solar Module Companies Beyond Gigawatts

Nameplate capacity is the headline, but project performance, bankability, and durability often matter more. Below are the filters professional buyers use to sort the reliable solar module companies from those with impressive numbers but patchy track records.

Tier 1 Status and Bankability

Tier 1 isn’t a quality label—it’s a bankability ranking compiled by BloombergNEF. To qualify, a manufacturer must have supplied its own-brand, in-house panels to at least six non-backed projects financed non-recourse by five different banks over the previous two years. The list is updated quarterly and heavily influences project financing. If you’re developing a utility-scale plant with third‑party debt, lenders will almost always require Tier 1 modules.

Common mistake: Assuming high capacity automatically makes a company Tier 1. Several manufacturers in our top ten have dropped off BNEF’s list in past quarters due to insufficient bank-financed project references. Always verify current Tier 1 status directly.

Certifications That Prove Durability

IEC 61215 and IEC 61730 form the baseline for module design qualification and safety. In North America, UL 61730 and UL 1703 serve the same role. For demanding environments, look for additional test certificates:

• IEC 61701: Salt mist corrosion resistance (coastal sites).
• IEC 62716: Ammonia resistance (agricultural surroundings).
• Potential-induced degradation (PID) resistance test: Critical for long string voltages.
• Fire rating (Type 1–5 or Class A–C): Mandatory for building-attached installations.

Scenario: You’re procuring 50 MW for a floating solar plant on a coastal lagoon. Prioritize manufacturers that provide valid IEC 61701 and PID resistance certificates, and confirm the product warranty covers marine environments.

Warranty Terms and Real-World Degradation

The product warranty (12–25 years) covers defects; the linear performance warranty guarantees how much power the panel will still produce after 25 or 30 years. Leading n‑type TOPCon and heterojunction modules now offer 30‑year performance warranties with a maximum first‑year degradation of just 1% and annual degradation of 0.4%. Traditional PERC modules typically guarantee ≤2% first year and ≤0.55% annually.

Thin-film CdTe degrades even more slowly—First Solar’s independently verified field data show long-term degradation of only 0.3% per year, which is why its systems often model a 30‑year life with minimal clipping.

Module Type	Typical Product Warranty	Common Linear Performance Warranty	1st-Year Degradation	Annual Degradation
Mono PERC	12–15 years	25 years	≤2.0%	≤0.55%
N-type TOPCon / HJT	20–25 years	30 years	≤1.0%	≤0.40%
CdTe thin-film	12–25 years	30 years	≤2.0%	≤0.30% (field‑verified)

Decision rule: If annual degradation matters most (hot, humid climate), CdTe often leads despite lower initial efficiency. For high first‑year yield and strong bifacial gain, n‑type bifacial modules are the pick.

Capacity-Quality Blind Spot

Large solar module companies can still ship batches with microcracks, solder failures, or junction box defects if process controls drift. Smaller, specialized manufacturers sometimes deliver superior build quality for niche applications like building‑integrated photovoltaics (BIPV). Before committing, ask for ISO 9001 / ISO 14001 certificates, third‑party audits from PI Berlin or TÜV Rheinland, and electroluminescence (EL) imaging samples of production runs.

Frequently Asked Questions

Which company is the largest solar module manufacturer in 2026?
LONGi Green Energy holds the largest annual module production capacity at 130 GW, based on 2026 nameplate figures drawn from integrated wafer-to-module operations.

Are any of the top 3 solar module companies based in the US?
No. The top three—LONGi, Trina Solar, and Jinko Solar—are all headquartered in China. First Solar, based in Tempe, Arizona, is the highest-ranked US-headquartered manufacturer, sitting fifth globally.

How is solar module production capacity measured?
Production capacity is measured in gigawatts of nameplate annual output under standard test conditions. It reflects the maximum number of complete photovoltaic modules a manufacturer’s fabrication lines can produce in a year at full utilisation.

How frequently is this ranking updated?
We update annually, usually after the 2025 fiscal reports roll in. If a merger, acquisition, or major factory commissioning shifts the landscape mid-year, the ranking gets revised sooner.

Do these companies also manufacture solar cells and wafers?
Most of the top ten—including LONGi, Trina Solar, Jinko Solar, and JA Solar—are vertically integrated and produce their own wafers and cells. First Solar is the notable exception: it manufactures thin-film modules directly on a single integrated production line, skipping discrete wafer and cell stages entirely.

What’s the difference between a Tier 1 and a non‑Tier 1 solar module company?
A Tier 1 designation, as tracked by BloombergNEF, strictly reflects whether a manufacturer’s panels are used in unsubsidized, non‑recourse financed projects from a range of banks. It’s a measure of bankability, not product quality. A company can be Tier 1 in one quarter and drop off the list the next if project references lapse. Some non‑Tier 1 solar module companies make excellent, reliable products for commercial and residential markets.

How can I verify a manufacturer’s nameplate capacity?
Start with the latest annual report or investor presentation, where companies disclose total module lines, planned expansions, and actual shipments. Cross‑check those figures against industry association data and factory audit summaries. For procurement, request a third‑party audit report covering the specific factory that will produce your order.

Complete Directory Access

The profiles above represent a subset of the global photovoltaic supply chain. Our full directory contains 400+ solar module companies with historical capacity data, factory locations, and technology filters.

What’s Inside the Full Directory

The downloadable dataset includes verified records for each solar module company, covering far more than nameplate capacity.

Field	Description
Company name	Legal entity name and any trading aliases
Headquarters	City and country of global headquarters
Module capacity (GW)	Latest reported nameplate annual capacity
Technology type(s)	PERC, TOPCon, HJT, CdTe, bifacial, etc.
Factory locations	All active module assembly sites, with city and country
Annual shipments (GW)	Most recent full-year shipment volumes where available
Tier 1 status (as of [quarter])	Current BloombergNEF Tier 1 flag (yes/no)
Certifications	IEC 61215, IEC 61730, UL 61730, ISO 9001, etc.
Warranty terms	Product and linear performance warranty durations
Year founded	Year the company was established
Public/private	Listing status and stock ticker (if applicable)
Website	Official corporate website

Download the complete list of 400+ solar module manufacturers worldwide with verified 2026 capacity figures.