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Talesun vs Techwise Solar - solar panel manufacturer comparison

Talesun
China Founded 2010 Tier 1
Read the Talesun review
VS
Techwise Solar
Headquarters not published
Read the Techwise Solar review
At a glance

Techwise Solar has the broader catalog (164 vs 144 models). Talesun leads on peak efficiency at 24.80%.

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
144 164
Highest power
710 Wp 720 Wp
Best efficiency
24.8% 23.8%
Average efficiency
22.1% 21.9%
Bifacial share
59% 49%
Average warranty
29 yrs 27 yrs
01

The two companies

Company facts, not datasheet figures
Talesun

Talesun Solar, a subsidiary of Zhongli Group, is a leading global photovoltaic manufacturer specializing in the development, manufacturing, and delivery of high-quality solar modules and integrated PV energy solutions. The company provides clean and affordable PV energy solutions for residential, commercial, and...

Founded
2010
Headquarters
Suzhou, China
Annual capacity
5+ GW/year
Employees
501
Tier 1 bankable
Yes
Techwise Solar
02

Catalogue against catalogue

Averages over every model in the database
Metric Talesun Techwise Solar
Catalog & Power
Panel Models 144 164+20
Max Power 710 W 720 W+10 W
Avg Power 564 W+34 W 530 W
Efficiency
Max Efficiency 24.80%+1.00 pp 23.80%
Avg Efficiency 22.14%+0.26 pp 21.88%
Reliability & Warranty
Avg Temp Coefficient -0.304%/°C+0.013 -0.317%/°C
Bifacial Share 85 (59%)+10 pp 81 (49%)
Avg Warranty 28.8 yrs+1.4 yr 27.3 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

Talesun skews to higher efficiency: 28% of lineup is 23%+

Power spread
Share of each catalogue in every power band

Talesun offers more 600W+ panels (49% of lineup)

Talesun cell technology
Share of their models by cell architecture

Dominant cell tech: TOPCon (44%)

Techwise Solar cell technology
Share of their models by cell architecture

Dominant cell tech: TOPCon (70%)

04

The flagships

Highest-power models from each brand
05

Written summary

Checking cache...

Talesun is a Chinese solar module manufacturer founded in 2009, operating as a core enterprise of the C&D Group - a Fortune Global 500 conglomerate ranked 85th globally - and headquartered in Changshu, Jiangsu Province. It holds confirmed BloombergNEF Tier 1 status as of Q1 2025, meaning its modules are recognized as bankable assets by mainstream international project lenders and insurers. According to the company, annual module production capacity stands at 8 GW, and cumulative installed capacity from its modules has exceeded 36 GW across more than 20 countries. Techwise Solar Technology Co., Ltd. is also a Chinese manufacturer based in Jiangsu, with annual production capacity of approximately 1 GW. It does not appear on the BloombergNEF Tier 1 list and operates primarily as an ODM/OEM supplier, producing modules under contract for larger brands rather than building a standalone market identity. On institutional footprint and production scale, Talesun holds a considerably stronger position.

Talesun's current portfolio is built around N-type TOPCon technology. The TM7G-series spans 440 W to 715 W and includes all-black residential modules, bifacial dual-glass panels suited to commercial rooftops and ground-mount sites, and large-format high-wattage configurations for utility-scale projects. Active participation in Intersolar Europe 2024 and Intersolar North America 2025 underscores the brand's sustained engagement with Western buyers. Techwise Solar's "Sun-Pursuit" family covers both PERC and TOPCon technologies in monofacial and bifacial formats, with outputs running roughly from 420 W to 600 W. The lineup addresses residential and light-commercial needs, but because the company's primary route to market is OEM supply rather than direct branded sales, traceability and after-sales accountability can be harder to establish for end buyers or asset owners.

For most buyers - residential installers, C&I developers, or project teams requiring non-recourse financing - Talesun is the more defensible default choice. Its Tier 1 bankability simplifies project loans, its production scale reduces supply-chain risk, and its consistent trade-show presence reflects a long-term commitment to after-sales support. Techwise Solar may offer competitive pricing given its OEM orientation, but limited independent review data and absence from bankability rankings elevate risk for financed or large-scale installations. For cash-funded, cost-sensitive residential purchases it remains a plausible alternative, provided buyers independently verify certifications and warranty documentation before committing.

Generated by Claude Sonnet · 2026-06-28

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 2 Talesun 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.