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Runergy vs Seraphim - solar panel manufacturer comparison

Runergy
China Founded 2013 Tier 1
Read the Runergy review
VS
Seraphim
China Founded 2011 Tier 1
Read the Seraphim review
At a glance

Seraphim has the broader catalog (160 vs 124 models). Runergy leads on peak efficiency at 24.10%.

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
124 160
Highest power
740 Wp 730 Wp
Best efficiency
24.1% 23.5%
Average efficiency
22.4% 21.8%
Bifacial share
77% 69%
Average warranty
29 yrs 29 yrs
01

The two companies

Company facts, not datasheet figures
Runergy

Runergy is a global leader in solar technology, specializing in the R&D and production of high-efficiency solar cells and modules. The company is committed to innovation, quality, and providing a transparent and efficient supply chain to meet the growing global demand for clean energy. They have established production...

Founded
2013
Headquarters
Yancheng, Jiangsu Province, China
Annual capacity
23GW (module capacity), 63GW (cell capacity) GW/year
Employees
15,000
Tier 1 bankable
Yes
Seraphim

Seraphim is a world-class solar products manufacturer specializing in research, development, production, and sales of solar PV products. The company has achieved significant milestones, outpacing competitors in production capacity and innovative designs. Seraphim is committed to technological innovation and...

Founded
2011
Headquarters
Changzhou, China
Annual capacity
13 GW/year
Employees
1001-5000
Tier 1 bankable
Yes
02

Catalogue against catalogue

Averages over every model in the database
Metric Runergy Seraphim
Catalog & Power
Panel Models 124 160+36
Max Power 740 W+10 W 730 W
Avg Power 579 W+30 W 549 W
Efficiency
Max Efficiency 24.10%+0.60 pp 23.50%
Avg Efficiency 22.42%+0.60 pp 21.82%
Reliability & Warranty
Avg Temp Coefficient -0.298%/°C+0.018 -0.316%/°C
Bifacial Share 95 (77%)+7 pp 111 (69%)
Avg Warranty 29.1 yrs+0.3 yr 28.8 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

Runergy skews to higher efficiency: 33% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Runergy offers more 600W+ panels (48% of lineup)

Runergy cell technology
Share of their models by cell architecture

Dominant cell tech: N-type (60%)

Seraphim cell technology
Share of their models by cell architecture

Dominant cell tech: PERC (52%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Runergy is a Chinese solar module manufacturer based in Jiangsu, part of the broader Runergy Group, that has built its reputation around N-type cell technology and has repeatedly secured BloombergNEF Tier 1 status, including six consecutive quarters through early 2025, reflecting strong bankability with commercial lenders. The company has also expanded manufacturing into the United States, with a module facility in Huntsville, Alabama, alongside its large-scale Chinese cell and module capacity. Seraphim, also headquartered in China, has held BNEF Tier 1 status for even longer, having first earned the designation in 2015 and maintained it for multiple consecutive years, giving it one of the more established bankability track records among mid-tier Chinese manufacturers, though its production footprint is comparatively smaller than top-tier giants. On institutional footprint, Runergy currently presents a larger and more actively expanding manufacturing base, while Seraphim's advantage lies in the longevity of its Tier 1 record.

Runergy's product range leans heavily on N-type TOPCon cells, which make up the bulk of its portfolio alongside smaller PERC and HJT shares, with panels spanning roughly 425 W to 740 W suited to residential, commercial and utility-scale projects, and independent testing has placed some of its N-type modules near the top of performance rankings. Seraphim's lineup is more mixed, with TOPCon, PERC and a small HJT share; its Nebula series targets higher-efficiency bifacial applications around 22.5 percent efficiency, while the Sable and S-series cover standard residential and value-oriented commercial installs, generally positioned as a budget-to-midrange alternative to premium brands.

For a typical buyer in 2025, Runergy looks like the stronger choice where cutting-edge N-type efficiency and a growing US-based supply chain matter, while Seraphim remains a reasonable, cost-conscious Tier 1 option for standard residential or commercial rooftops where absolute peak efficiency is less critical. Neither is a top-tier global leader like Longi or Trina, but both offer credible bankable coverage for mainstream projects.

Generated by Claude Sonnet 5 · 2026-08-09

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 4 Runergy offers · See 5 Seraphim 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.