--- title: "Huayao CETC-240T(GDF)/64 240W Solar Panel - Specs & Review | ComparePV" description: "Huayao CETC-240T(GDF)/64 240W solar panel. Specs: 12.99% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/huayao-cetc-240t-gdf-64" updated: 2026-09-11 --- # Huayao CETC-240T(GDF)/64 Light for its output, needs the roof space 76 panels in the segment TOPCon 140-340 W ## Identity - **Manufacturer:** Huayao - **Model:** CETC-240T(GDF)/64 - **Series:** N series M10 bifacial double-glass module - **Rated power:** 240 W - **Cell technology:** TOPCon - **Bifacial:** yes ## How it compares Compared against segment TOPCon 140-340 W (76 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 240 W | 295 W | Weak - bottom 13% | | | Module efficiency | 12.99% | 14.95% | Weak - bottom 15% | 13,970 | | Power density | 122.9 | 148.8 | Weak - bottom 7% | 13,974 | | Temperature coefficient | -0.300 | -0.300 | Typical | 6,093 | | Weight (kg) | 15.0 kg | 23.5 kg | Strong - top 21% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 12.99% | 14.95% | Weak - bottom 15% | 13,970 | | Power density | 122.9 | 148.8 | Weak - bottom 7% | 13,974 | | Temperature coefficient | -0.300 | -0.300 | Typical | 6,093 | | Weight per kWp | 62.5 | 78.9 | Strong - top 21% | 12,777 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **62.5 kg per kWp** - Top 21% of the TOPCon 140-340 W segment, against a median of 78.9. ### Watch out for - **122.9 watts per square metre** - Bottom 7% of the TOPCon 140-340 W segment, against a median of 148.8. Ranked 13,974th in the whole database. - **12.99% module efficiency** - Bottom 15% of the TOPCon 140-340 W segment, against a median of 14.95%. - **Best for:** Commercial. - **Not ideal for:** Roofs where every square metre has to count and tight roof space. ## Specification ### Electrical - **Rated power (Pmax):** 240 W - **Efficiency:** 12.99 % - **Voltage at Pmax (Vmp):** 19.59 V - **Current at Pmax (Imp):** 12.27 A - **Open-circuit voltage (Voc):** 22.81 V - **Short-circuit current (Isc):** 13.37 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.300 %/degC - **Temperature coefficient of Voc:** -0.255 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 64 - **Bifacial:** yes ### Physical - **Length:** 1722 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 15.0 kg - **Area:** 1.95 m2 - **Power density:** 122.9 Wp/m2 ### Warranty and degradation - **Product warranty:** 12 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 87.4 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.40 % - **Output after 30 years:** 210 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 13970 of 14005 | | Power density | 13974 of 14005 | | Temperature coefficient | 6093 of 14005 | | Weight | 12777 of 14005 | | Warranty | 21 of 14005 | ## Pros - **N-type TOPCon cells – lower degradation** - TOPCon N-type cell technology exhibits lower Light-Induced Degradation (LID) than P-type PERC and performs better at elevated operating temperatures. In real-world conditions this translates to higher annual energy yield compared to same-wattage PERC-based modules. - **~80% bifaciality – rear-side energy harvest** - TOPCon bifaciality typically reaches 80–85% (versus ~70% for PERC), enabling rear-side energy capture from reflected light off concrete, gravel, or white roofing membranes. Under favorable ground-mount conditions this can add 8–15% to annual production versus a monofacial module of equivalent nameplate power. - **Double-glass construction – environmental durability** - The glass-glass laminate eliminates backsheet degradation risks (PID, moisture ingress) and reduces microcrack propagation, extending mechanical service life. Particularly advantageous in high-humidity, chemically aggressive, or freeze-thaw environments. - **30-year linear power warranty** - The manufacturer offers a 30-year power output warranty, exceeding the 25-year standard common among entry-level and mid-range peers. The extended warranty horizon improves LCOE calculations for projects with a 25–30-year lifespan. ## Cons - **Module efficiency well below market standard** - Efficiency of 12.64–13.44% is dramatically lower than peer comparables at similar nameplate power: Isola New Energy 182M SPLIT CELL reaches 21.22%, and both LinkSol and JA Solar achieve 18.8% at 245–250 Wp. This implies approximately 40–60% more roof or ground area is required to achieve the same installed capacity. - **Not Tier-1 / non-bankable manufacturer** - The manufacturer does not appear on the BNEF Tier-1 bankable list (confirmed by tier\_1\_bankable: false in product data and independent Q1 2026 Tier-1 lists). For bank-financed or infrastructure fund projects where BNEF Tier-1 status is a lender requirement, this may result in module rejection or costly additional technical due diligence. - **Short product warranty – only 12 years** - The materials and workmanship warranty of just 12 years falls well short of the 25-year standard offered by leading manufacturers such as JA Solar, Trina Solar, and LONGi. For commercial or industrial installations with a 20–30-year horizon, the module operates without product warranty coverage for more than half its expected service life. ## About this series The Huayao N series M10 bifacial double-glass module is designed for high performance in real-world conditions - even when the roof or ground is not ideal. The use of **TOPCon technology with N-type cells** improves operational stability and reduces power losses over time, which is important when calculating the long-term profitability of the installation. The **bifacial** design allows for energy recovery from the rear side, making the module more efficient in utilizing reflected light from bright roofs, gravel, or concrete. The **double-glass** design is particularly attractive where durability and resistance to moisture, micro-cracks, and harsh environmental conditions are important. The **M10** format also simplifies the construction of high-power installations with a reasonable number of modules and easier logistics on-site. This is a good choice for PV farms, commercial and industrial rooftops, and projects where high reliability and predictable energy production are desired, not just theoretical performance figures. ## Notable figures - Efficiency of 13.0% is 3.0pp below the \*\*TOPCon 0-400W\*\* median (16.0%) - 122.9 W/m² power density is 36.9 W/m² below \*\*TOPCon 0-400W\*\* median (159.8 W/m²) - requires larger installation area - Temperature coefficient of -0.30%/°C matches the \*\*TOPCon 0-400W\*\* median - 15.0 kg weight - 8.5 kg lighter than \*\*TOPCon 0-400W\*\* median (23.5 kg), reducing installation effort - In the top 100% for efficiency among all TOPCon panels ## Questions ### What warranty does the Huayao N series M10 bifacial double-glass module come with? The Huayao N series M10 bifacial double-glass module comes with a 12-year product warranty covering materials and workmanship, and a 30-year linear power output warranty. The manufacturer guarantees that the module will maintain specified performance levels for three decades. The extended power warranty is a key input when calculating the LCOE of commercial installations or utility-scale PV projects, making long-term energy yield more predictable. ### What does the bifacial design of the Huayao N series M10 actually deliver, and when does it pay off? The bifacial design allows the Huayao N series M10 module to generate power from both the front and rear surfaces by capturing reflected irradiance from the ground or roof. Actual rear-side gain depends on the albedo of the surface below: light-colored gravel, concrete, sand, or white roofing membranes can boost energy yield by several percentage points. Ground-mounted systems and installations on high-albedo industrial rooftops benefit most. ### Why does the Huayao N series M10 use double-glass construction instead of a standard back-sheet? The double-glass construction replaces the conventional back-sheet with a rigid glass layer, dramatically improving resistance to moisture ingress, UV degradation, and microcracks in the cells. This design is especially valued in installations exposed to harsh environments, such as utility-scale PV farms in high-humidity regions, industrial rooftops, or dusty locations. Dual-glass modules also tend to have a longer projected service life compared to back-sheet alternatives. ### How does the TOPCon cell technology in the Huayao N series M10 compare to PERC? TOPCon (Tunnel Oxide Passivated Contact) is an N-type silicon cell technology that uses a thin tunneling oxide layer to minimize carrier recombination losses. Compared to PERC, TOPCon cells achieve higher conversion efficiency and a lower annual power degradation rate. For investors, this means the Huayao N series M10 module retains more of its nameplate capacity over the full lifetime of the installation, improving the predictability of long-term energy production. ### Are Huayao N series M10 double-glass modules suitable for utility-scale PV farms and large commercial rooftops? Yes, this series is designed specifically for utility-scale PV farms, commercial rooftops, and industrial facilities. The M10 wafer format allows high-power installations to be built with fewer modules, simplifying logistics and on-site mounting. The rugged dual-glass construction performs reliably in demanding environments, and the N-type TOPCon technology ensures high dependability and predictable energy output over decades of operation. ### Huayao is not a Tier 1 manufacturer — is the N series M10 bifacial still a safe purchase? Tier 1 classification refers solely to a manufacturer's financial capacity to bankroll large-scale PV projects and does not directly measure panel quality. While Huayao is not listed among Tier 1 manufacturers, the N series M10 double-glass modules carry a 30-year power output warranty and use proven N-type TOPCon cell technology. Before purchasing, it is advisable to verify warranty terms, after-sales service availability in your market, and the track record of the local distributor. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/1722-1134-30mm40-64-d5e551974fba.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Heckert Solar ZEUS 1.2 FullBlack 280W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-280w) | 280 W | +40 W, cooler, +10.3 pp | | [Gamko New Energy GKA182M285W](https://comparepv.com/panel/gamko-new-energy-gka182m285w) | 285 W | +45 W, lighter, +10.0 pp | | [Gamko New Energy GKA182M200W](https://comparepv.com/panel/gamko-new-energy-gka182m200w) | 200 W | -40 W, lighter, +10.0 pp | | [Gamko New Energy GKA182M240W](https://comparepv.com/panel/gamko-new-energy-gka182m240w) | 240 W | Lighter, +10.0 pp | | [Gamko New Energy GKA182M260W](https://comparepv.com/panel/gamko-new-energy-gka182m260w) | 260 W | +20 W, lighter, +10.0 pp | | [Gamko New Energy GKA182M270W](https://comparepv.com/panel/gamko-new-energy-gka182m270w) | 270 W | +30 W, lighter, +10.0 pp | | [DMEGC DM270M10T-B32HBT](https://comparepv.com/panel/hengdian-group-dmegc-magnetics-co-ltd-dmegc-solar-dm270m10t-b32hbt) | 270 W | +30 W, cooler, +9.9 pp | | [Heckert Solar ZEUS 1.2 FullBlack 275W](https://comparepv.com/panel/heckert-solar-zeus-1-2-fullblack-275w) | 275 W | +35 W, cooler, +9.9 pp | | [Huayao CETC-235T(GDF)/64](https://comparepv.com/panel/huayao-cetc-235t-gdf-64) | 235 W | -0.3 pp | | [Huayao CETC-245T(GDF)/64](https://comparepv.com/panel/huayao-cetc-245t-gdf-64) | 245 W | Very close match | | [Huayao CETC-250T(GDF)/64](https://comparepv.com/panel/huayao-cetc-250t-gdf-64) | 250 W | +10 W, +0.4 pp | | [Huayao HY395-M108BDD](https://comparepv.com/panel/huayao-hy395-m108bdd) | 395 W | +155 W, heavier, +7.2 pp | | [Huayao HY400-M108BDD](https://comparepv.com/panel/huayao-hy400-m108bdd) | 400 W | +160 W, heavier, +7.5 pp | | [Huayao HY405-M108BDD](https://comparepv.com/panel/huayao-hy405-m108bdd) | 405 W | +165 W, heavier, +7.7 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +270 W, heavier, +12.0 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +255 W, heavier, +11.8 pp | --- Source: https://comparepv.com/panel/huayao-cetc-240t-gdf-64 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.