Trina Solar Review (Philippines): Strong Balance of Efficiency and Warranty
Published specifications for the Vertex S+ TSM-NEG9R.28. A brand ships several series, so these figures describe this model and not every product the manufacturer sells.
- Rated power
- 430–460 W
- Module efficiency
- Up to 23.0%
- Cell technology
- N-type i-TOPCon, dual glass
- Product warranty
- 25 years
- Performance warranty
- 30 years
- Annual degradation
- 0.40% after year oneFirst-year degradation 1%.
- Temperature coefficient
- −0.29 %/°C
- Max system voltage
- 1500 V DC (IEC)
Source: Trina Vertex S+ TSM-NEG9R.28 datasheet. Checked 2026-09-28. Manufacturers revise specifications between series without notice — confirm the figures for the exact model you are quoted before you pay.
What it does well
- A 25-year product warranty, double the 12–15 years Jinko puts on the panel itself.
- Dual-glass construction with a 30-year performance warranty, which suits the humidity and salt air much of the Philippines sits in.
- Module efficiency is published at up to 23.0%, so it can be compared directly against rivals that state theirs.
Where it falls short
- At 430–460 W this is a smaller module than Jinko's 555–575 W Tiger Neo, so a given system size needs more panels and more roof.
- We have not verified a named Philippine distributor for Trina in our channel register, so confirm who would honour a claim before you buy.
- Dual-glass modules are heavier than a glass-backsheet equivalent, which matters on the older light-gauge roof framing common here.
Compare against the other 29 panels we have reviewed
How the Vertex S+ TSM-NEG9R.28 compares with the other panels we have reviewed. Listed in no particular order — this puts published figures side by side, it does not pick a winner. Scroll the table sideways to see every column.
| Model | Rated power | Module efficiency | Product warranty | Performance warranty |
|---|---|---|---|---|
| Vertex S+ TSM-NEG9R.28 this review | 430–460 W | Up to 23.0% | 25 years | 30 years |
| Tiger Neo N-type (72HL4 series) | 555–575 W | — | 12–15 years | 30 years to 87.4% |
| HiKu / BiHiKu / TOPHiKu6 lineup | 560–600 W | Up to 22.6% | 12–25 years | 30 years, linear |
| Hi-MO 6 and Hi-MO 7 | — | Hi-MO 6 up to 22.8% · Hi-MO 7 around 23.3% | 12–15 years | Hi-MO 6 25 years to ~84.8% · Hi-MO 7 30 years |
| Q.TRON BLK M-G2+ | 415–440 W | Up to 22.5% | 25 years | 25 years to 90.58% |
| Neostar 2S / 2P (ABC) | 440–520 W | Up to 23.5–24.3% | 15 years | 30 years, linear |
| DeepBlue 4.0 Pro (and 3.0) | 475 W (DeepBlue 4.0 Pro) | 4.0 Pro about 22.7% · 3.0 about 19.5–21.3% | 4.0 Pro 25 years · 3.0 12 years | 4.0 Pro 30 years to ~87.4% at year 25 · 3.0 25 years |
| Maxeon 7 | — | Up to about 24% | 40 years | 40 years to over 88% |
| JW-HD108N / HD144N / JW Max | 445–715 W | — | — | — |
| 575 W bifacial N-type | 575 W | About 22% | — | — |
| Current mainstream lines | — | Roughly 20–22.5% | 15 years | 25–30 years |
| CMD-144 series and Meteor CME-132BDS | 575-595 W (CMD-144), 700-725 W (Meteor CME-132BDS) | — | 30 years | 30 years |
| Astro N series (n-type TOPCon) | — | — | — | — |
| PERC, N-type TOPCon and N-type HJT lines | 425-530 W mainstream residential TOPCon, to 660 W class bifacial | 21.8-24.5% mainstream TOPCon, up to 24.6% | 12 years | 25 years PERC, 30 years TOPCon bifacial |
| n-type TOPCon range | — | — | — | — |
| Series 6 and Series 7 (CdTe thin film) | Around 525 W (Series 7) | 18.8-19.7% | — | 30 years |
| PERC, bifacial, HJT and n-type TOPCon range | 385-730 W across the range | — | — | — |
| Heterojunction (HJT) modules | — | — | — | — |
| LP182*182-M-72-NB (N-type TOPCon) | 565-585 W | 21.86-22.64% | — | 30 years linear |
| N-type TOPCon range | — | — | — | — |
| EverVolt (HJT), discontinued 2025 | — | Roughly 19-21% | — | — |
| PERC, bifacial, HJT and n-type TOPCon range | 400-730 W across the range | — | — | — |
| Alpha Pure-R and Alpha Pure-RX | — | Roughly 21.9-22.6% | 25 years | 25 years |
| Titan series, with a separate Hyper-ion HJT line | — | Around 21.8% mainstream, Titan topping out around 21.7% | 15 years on current lines | 30 years on current lines |
| Tangra series (n-type TOPCon) | — | — | — | — |
| Maxeon back-contact modules | — | Low-to-mid 20% range | — | — |
| SPDG585-600W-N144M10 (SPDG bifacial series) | 585-600 W in this bin | 22.64-23.22% | 15 years | 30 years linear |
| TOPCon residential range | Roughly 395 W up to large-format commercial modules | Around 22%, up to about 23.2% on higher-end SKUs | 12 years | 25 years monofacial, 30 years bifacial |
| N-type TOPCon own-brand modules | — | — | — | — |
| Monocrystalline half-cut PERC range, many bifacial | 360-700 W across residential and commercial lines | Roughly 20.5-22.5% | 10-12 years | 25 years standard, 30 years bifacial |
Dashes are figures the manufacturer does not publish, not zeros. Where two products differ on a spec, which one matters depends on your roof and your usage — a higher efficiency panel earns its premium on a small roof and rarely on a large one.
Trina Solar is a global Tier-1 Chinese panel manufacturer with a particularly strong presence in Philippine utility-scale solar. It’s less of a household name in residential circles than Jinko, but its footprint in large local projects gives it a credible track record to point to.
Local track record
Trina panels have been confirmed in significant Philippine deals, including a large Vertex module supply deal with PetroGreen and a multi-gigawatt TOPCon panel deal with Citicore. Those are the kind of projects where buyers run extensive technical and financial due diligence before signing, which is a reasonable indirect signal of quality and bankability. That said, Trina’s residential retail network in the Philippines — the dealers and installers actually selling to homeowners — is less documented than Jinko’s, so it’s worth asking your installer directly whether Trina panels are something they regularly source and service, rather than a one-off.
Efficiency and warranty
Trina’s mainstream panels run in the high-teens to low-twenties percent efficiency range, with its higher-end Vertex S+ series reaching into the 22-23% range (around 22.6%). Premium lines carry 25-year product warranties, and the Vertex S+ series adds a 30-year performance warranty with output still in the high 80s percent range at that point, similar to what Canadian Solar and Jinko’s top lines offer.
Price and positioning
Trina sits in the upper-mid range of Tier-1 pricing — a bit more expensive than Jinko or Canadian Solar for broadly comparable output, but still well short of SunPower/Maxeon premium pricing. You’re paying a modest premium for a slightly stronger overall efficiency/warranty package.
Where it falls short
The main caveat is availability: because Trina’s most visible Philippine business is utility-scale, it can be harder to find installers who regularly stock and service Trina panels for residential jobs compared to Jinko. It’s a bit pricier than the most budget-friendly Tier-1 options for similar performance, so if squeezing the lowest cost per watt is your main goal, it may not be the first brand to reach for.
Who it’s best for
Homeowners who want a step up in efficiency and warranty terms from base Tier-1 panels without moving all the way to premium pricing, and who don’t mind asking around to find an installer who carries it. If your installer already stocks Trina and quotes it competitively, it’s a solid pick.