The assessment
How it scores, by category
Market position
The data
Solar module
Produces DC electricity at the roof. It contains no system-level power conversion or storage.
- Product role
- None in the module.
- Published range
- 700–735 W
- Electrical layer
- DC module output
- Construction
- Bifacial, Dual-glass
Performance guarantee: 30-year linear output
Wattage figure based on the sourced rated power (735 W) applied to the guaranteed floor; modular/format differences aside, this is the same rated-power spec shown above.
Modelled effective output, year by year
Year 1 to year 25. Rated 735 W at STC.
How this is modelled
Modelled from this panel’s own published first-year (1%) and annual (0.375%/yr) degradation figures, compounded against its 735 W rated (STC) output. This is a datasheet-derived estimate, not a field measurement or a warranty guarantee. Actual output also depends on site irradiance, temperature, soiling and system design.
| Year | 1 | 5 | 10 | 15 | 20 | 25 |
|---|---|---|---|---|---|---|
| Watts | 728 W | 717 W | 703 W | 689 W | 675 W | 662 W |
| % of rated | 99.0% | 97.5% | 95.6% | 93.8% | 91.9% | 90.0% |
Verification & sources
Market context
Global evidencechange in the site menu
Global benchmark. This scorecard is benchmarked globally. A global score does not imply local availability, certification, warranty coverage, or installer compatibility.
Benchmark anchor. The datasheet range and the Australian approval coincide exactly: all eight models TWMHF-66HD700 to 735 are listed, so no intersection narrowing is needed. Scored model: TWMHF-66HD735 · checked 2026-08-18. Evidence.
Sources & references · checked 2026-08-18
Strong evidence coverage
18 of 18 scored criteria link directly to a published source.
Values marked estimated, derived, or not found remain visible on the audit sheet and do not carry the same evidential weight as a linked source. Coverage measures direct links, not an independent guarantee that a claim is correct.
Record correction. Built 2026-08-18 from Tongwei's Australian-market datasheet, footer AUS-Ver.20241126, which carries a North Sydney address (Level 25, 100 Mount Street, 2060). The file is image-only: its text layer yields ~2 KB and no electrical table, so every figure here was read from a 170 dpi render, not parsed. The datasheet names the cell type only as "THC"; Tongwei's own newsroom expands THC as heterojunction, and the CEC list flags the family bifacial. TNC is Tongwei's separate TOPCon brand and must not be conflated. Prior research reported this family as absent from Tongwei's catalogue; that is wrong - the THC sheet sits behind the download page's category filter (typeid=47) and an unfiltered read of the page misses it. Re-verification 2026-08-18: salt mist recorded as certified without published severity from the Clean Energy Council enhanced listing for exact model TWMHF-66HD735, under panel rubric v2.11.0 which added that band.
- Sourced valuesData card →
- Archived copy of the primary sourcePDF ↗
Show 2 more
- Cell technology tierManufacturer ↗
- PID (IEC TS 62804)Manufacturer ↗
Product record history
Baseline 2026-08-16 · 232 product records
Salt mist (IEC 61701)
- Before
- Not previously recorded
- After
- Certified (IEC 61701), severity not published
Source revision
- Before
- Built 2026-08-18 from Tongwei's Australian-market datasheet, footer AUS-Ver.20241126, which carries a North Sydney address (Level 25, 100 Mount Street, 2060). The file is image-only: its text layer yields ~2 KB and no electrical table, so every figure here was read from a 170 dpi render, not parsed. The datasheet names the cell type only as "THC"; Tongwei's own newsroom expands THC as heterojunction, and the CEC list flags the family bifacial. TNC is Tongwei's separate TOPCon brand and must not be conflated. Prior research reported this family as absent from Tongwei's catalogue; that is wrong - the THC sheet sits behind the download page's category filter (typeid=47) and an unfiltered read of the page misses it.
- After
- Built 2026-08-18 from Tongwei's Australian-market datasheet, footer AUS-Ver.20241126, which carries a North Sydney address (Level 25, 100 Mount Street, 2060). The file is image-only: its text layer yields ~2 KB and no electrical table, so every figure here was read from a 170 dpi render, not parsed. The datasheet names the cell type only as "THC"; Tongwei's own newsroom expands THC as heterojunction, and the CEC list flags the family bifacial. TNC is Tongwei's separate TOPCon brand and must not be conflated. Prior research reported this family as absent from Tongwei's catalogue; that is wrong - the THC sheet sits behind the download page's category filter (typeid=47) and an unfiltered read of the page misses it. Re-verification 2026-08-18: salt mist recorded as certified without published severity from the Clean Energy Council enhanced listing for exact model TWMHF-66HD735, under panel rubric v2.11.0 which added that band.
Salt mist (IEC 61701): Evidence sources
- Before
- Not previously recorded
- After
- https://cleanenergycouncil.org.au/industry/products/modules
Product record
kind: panel; brand: Tongwei; name: THC TWMHF-66HD; model: TWMHF-66HD700 through TWMHF-66HD735 (132 (6x22) cells, N-type THC heterojunction, bifacial double glass); scored model TWMHF-66HD735; score: 65.1
Source
This is review.solar's publication history. It does not claim the product changed on the recorded date, and it excludes compatibility, system pairing, installation suitability and relative leaderboard prose. Open the complete JSON record.
Evidence timeline
Recorded verification events for this scorecard. These are evidence checks, not historical score snapshots.
- Core scorecard evidence checked
- AU market evidence checked
- Series benchmark evidence checked
Scored by Solar Analytica Research
Stay across the benchmark.
New scorecards, score changes and market signals, published as they happen.
Our reading
THC TWMHF-66HD scores 66, placing 43 of 47 in the Premium Performance class against a class average of 69.4. Its strongest scoring dimension is architecture & design (77). Guarantee & Backbone scores 41, the lowest pillar for this product. The class average on guarantee & backbone is 55. Underlying specifications include a module efficiency of 23.66%, N-type heterojunction (Tongwei THC) cell technology, 15-year product warranty backed by a 30-year performance term.