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Manufacturer review

Tongwei panels, read off the datasheets

Tongwei has 122 modules in the database, from 400 to 750 Wp.

Everything below is computed from those 122 datasheets: no score out of ten, no ranking of brands against each other, and nothing a manufacturer can pay to change. Where Tongwei does not publish a figure, it is left out of the average rather than assumed.

Panels
122
models in the database
Average efficiency
22.6%
across the catalogue
Best efficiency
24.2%
their strongest module
Power range
400-750 Wp
smallest to largest
Bifacial share
69%
84 dual-sided models
Average warranty
30 years
guaranteed output term
01

The top of the range

The leaders of Tongwei's own catalogue on the two figures a specification sheet leads with. Neither is a verdict: the most efficient module in a range is rarely the one that suits a given roof.

02

By what the array is for

Three cuts of the same catalogue, each ordered by efficiency inside its band. An empty column means the brand does not build for that case.

03

What the catalogue is made of

Cell technology across the market

Shares are of the 122 modules in the database, counted once each. A power ladder of one module counts as its rungs, which is why a large catalogue is not the same as a wide one.

Cell technology share of the catalogue
TOPCon accounts for 46.7% of the catalogue - 57 of 122 modules.
04

Strengths and gaps

Both lists are derived from the figures above rather than written about the brand. A gap here is a gap in what is published, which is not always a gap in what is built.

What this catalogue is good at
  • Solid portfolio of 122 panels
  • Tier 1 bankable manufacturer - recognized by major financial institutions
  • High-efficiency panels available (up to 24.2%)
  • Strong bifacial lineup - 69% of portfolio supports dual-sided generation
  • Strong warranty coverage averaging 30 years
  • High-power panels available (up to 750W) for commercial applications
05

In short

Tongwei: Tongwei is an industry leader in efficiency, offering 122 panels suitable for both residential and commercial buyers. With an average efficiency of 22.6% and top models reaching 24.2%, their panels deliver competitive performance. As a Tier 1 bankable manufacturer, they offer strong financial backing and long-term reliability.
Common questions
Is Tongwei a good solar panel manufacturer?
Tongwei offers 122 solar panel models with an average efficiency of 22.6%. They are a Tier 1 bankable manufacturer, recognized by major financial institutions for reliability. Check their full panel lineup on ComparePV to find the best model for your needs.
What types of solar panels does Tongwei make?
Tongwei manufactures panels ranging from 400W to 750W, covering both residential and commercial applications. Their portfolio includes TOPCon (47%), N-type (36%), PERC (8%) cell technologies.
How efficient are Tongwei solar panels?
Tongwei panels have an average efficiency of 22.6%, with their most efficient model reaching 24.2%. This puts them among the industry leaders in the current market.
Does Tongwei make bifacial solar panels?
Yes, Tongwei offers 84 bifacial panels, representing 69% of their portfolio. Bifacial panels can generate additional energy from the rear side, making them ideal for ground-mounted systems.
What warranty does Tongwei offer on their solar panels?
Tongwei panels come with an average performance warranty of 30 years. This warranty guarantees that the panels will maintain a specified level of power output over time, protecting your investment against degradation beyond normal levels.
Are Tongwei panels good for residential use?
Tongwei offers panels in the residential-friendly 380-460W range. For home installations, look for models with high efficiency and compact dimensions to maximize power from limited roof space. Browse their full lineup on ComparePV to filter by power range and specifications.
Does Tongwei use TOPCon technology?
Yes, Tongwei has adopted TOPCon (Tunnel Oxide Passivated Contact) cell technology in part of their portfolio. TOPCon cells offer higher efficiency and better temperature performance compared to older PERC technology, making them a strong choice for maximizing energy production.
06

Compared with

Build your own

A brand comparison weighs the two catalogues against each other - what each builds, at what efficiency, and how deep the range goes.