--- title: "HT-SAAE HT48-18X(N)-445W 445W Solar Panel - Specs & Review | ComparePV" description: "HT-SAAE HT48-18X(N)-445W 445W solar panel. Specs: 22.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/ht-saae-ht48-18x-n-445w" updated: 2026-09-11 --- # HT-SAAE HT48-18X(N)-445W Light for its output, weak in heat 1,218 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** HT-SAAE - **Model:** HT48-18X(N)-445W - **Series:** HT48-18X(N) - **Rated power:** 445 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 400-450 W (1218 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 445 W | 435 W | Strong - top 8% | | | Module efficiency | 22.30% | 22.00% | Strong - top 17% | 5,100 | | Power density | 222.7 | 220.2 | Typical | 5,302 | | Temperature coefficient | -0.310 | -0.290 | Weak - bottom 10% | 8,005 | | Weight (kg) | 21.0 kg | 22.0 kg | Strong - top 12% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.30% | 22.00% | Strong - top 17% | 5,100 | | Power density | 222.7 | 220.2 | Typical | 5,302 | | Temperature coefficient | -0.310 | -0.290 | Weak - bottom 10% | 8,005 | | Weight per kWp | 47.2 | 51.4 | Strong - top 12% | 1,537 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **47.2 kg per kWp** - Top 12% of the TOPCon 400-450 W segment, against a median of 51.4. - **22.30% module efficiency** - Top 17% of the TOPCon 400-450 W segment, against a median of 22.00%. ### Watch out for - **-0.310 %/°C temperature coefficient** - Bottom 10% of the TOPCon 400-450 W segment, against a median of -0.290. - **Best for:** Residential, commercial and shaded-installations. - **Not ideal for:** Hot climates. ## Specification ### Electrical - **Rated power (Pmax):** 445 W - **Efficiency:** 22.30 % - **Voltage at Pmax (Vmp):** 29.30 V - **Current at Pmax (Imp):** 15.20 A - **Open-circuit voltage (Voc):** 35.20 V - **Short-circuit current (Isc):** 16.10 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.310 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 43 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 96 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.0 kg - **Area:** 2.00 m2 - **Power density:** 222.7 Wp/m2 ### Warranty and degradation - **Product warranty:** 30 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:** 389 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 5100 of 14005 | | Power density | 5302 of 14005 | | Temperature coefficient | 8005 of 14005 | | Weight | 1537 of 14005 | | Warranty | 21 of 14005 | ## Pros - **30-Year Product Warranty – Twice the Industry Standard** - HT-SAAE offers a 30-year product warranty, whereas the direct peer comparable Risen RSM96-11-440-460BNDG (same power class and N-type TOPCon technology) provides only a 15-year product warranty. The power output guarantee of ≥87.4% after 30 years is identical between both manufacturers; however, the twice-longer product warranty coverage translates to lower long-term service cost risk over the asset's lifetime. - **22–23% Efficiency – Best-in-Class Among Peers** - The 22–23% efficiency range positions this series at the top of its peer group, on par with Risen RSM96-11 (23%) and SunKean SKT440~460M12-96D4 (23.02%), and well above Zonergy ZPM MH3-72 (21.16%). The higher power density reduces the required roof area for an equivalent nameplate system capacity. - **Temperature Coefficient of -0.31%/°C Pmax** - N-type TOPCon technology limits thermal losses to -0.31%/°C Pmax, compared to the typical -0.35%/°C for PERC modules. On hot, sunny days (cell temperature 70°C, ΔT from STC = 45°C), this advantage amounts to approximately 0.18 absolute percentage points of yield gain — a meaningfully measurable improvement in annual energy production under Polish climate conditions. - **BNEF Tier-1 Status with a Space Program Heritage** - HT-SAAE (Shanghai Aerospace Automobile Electromechanical Co., Ltd.) holds confirmed Tier-1 status per Bloomberg NEF, ensuring project bankability for external financing. The manufacturer has conducted PV cell research since the 1960s (satellite program) and has been in commercial production since 2000, representing over 25 years of documented manufacturing track record. - **1500 VDC System Compatibility** - Support for systems up to 1500 VDC enables longer string configurations in commercial installations, reducing the number of inverters and DC cabling runs (lower BoS costs). While this parameter is less critical for prosumer installations, it opens the series to the small utility-scale segment for systems above 50 kWp. ## Cons - **No Bifacial Variant Available** - The HT48-18X(N) series is monofacial only, while the direct peer comparable Risen RSM96-11-440-460BNDG offers bifacial capability with a bifacial factor of ~80% in the same power class (440–460 Wp) and N-type TOPCon technology. For ground-mount installations or carport canopies with a light-colored surface (albedo >20%), the absence of rear-side generation means forgoing the 5–15% additional annual yield that bifacial modules provide. ## About this series The HT-SAAE HT48-18X(N) series are modules based on **N-type TOPCon cells**, designed for high power generation over a long-term horizon and stable operation in real-world rooftop conditions. The applied **half-cut technology** minimizes internal losses and improves heat dissipation, helping to reduce the risk of localized overheating and maintaining better efficiency under partial shading. Additionally, **Multi-Busbar (MBB)** enhances current collection from the cells and boosts reliability, which is crucial for installations focused on predictable yield. In practice, this is a series for investors seeking to limit performance degradation over time - the modules feature a long power warranty and low annual degradation rate. From an installation design perspective, compatibility with **1500 VDC systems** also facilitates chain optimization in larger projects. The HT48-18X(N) is suitable for both residential homes and small and medium commercial installations, where real durability, PID resistance, and consistent batch quality matter. ## Notable figures - Efficiency of 22.3% matches the \*\*TOPCon 400-450W\*\* median - At 222.7 W/m² power density, roof space requirements are typical for \*\*TOPCon 400-450W\*\* panels - -0.31%/°C temperature coefficient - 0.02pp worse than \*\*TOPCon 400-450W\*\* median (-0.29%/°C), expect higher hot weather losses - Weight of 21.0 kg is typical for \*\*TOPCon 400-450W\*\* panels - In the top 36% for efficiency among all TOPCon panels ## Questions ### What warranty does the HT-SAAE HT48-18X(N) series come with? The HT48-18X(N) series includes a 30-year product warranty and a 30-year power output warranty. After 30 years of operation, modules are guaranteed to retain at least 87.4% of their rated power, reflecting the low annual degradation typical of N-type TOPCon cells. This is one of the longer warranties available on the market and is a key factor when calculating return on investment. ### Are HT-SAAE HT48-18X(N) panels suitable for a pitched roof installation? Yes. The 460 Wp variant measures approximately 1762 × 1134 mm and weighs around 21 kg, which falls within standard parameters for residential and commercial rooftop installations. The half-cut cell design improves performance under partial shading from chimneys or dormers — shading one section of the module does not cause a proportional drop in output across the entire panel. ### How do N-type TOPCon cells in the HT48-18X(N) compare to standard PERC panels? The TOPCon cells in the HT48-18X(N) series deliver higher conversion efficiency (approx. 22–23%) and a lower temperature coefficient (around -0.31%/°C) than typical PERC cells. This translates to smaller power losses on hot days and slower long-term degradation. N-type technology is also inherently more resistant to PID (Potential Induced Degradation), which is important in grid-tied systems. ### Is the HT-SAAE HT48-18X(N) series a bifacial panel? No, the HT48-18X(N) is a monofacial panel. It does not harvest light from the rear side, so it requires no high-albedo substrate or specialized mounting hardware designed for bifacial modules. This simplifies rooftop installation design and allows the use of standard racking systems without any need for albedo gain calculations. ### What is the rated power of the HT48-18X(N) panel and how does it perform under partial shading? Peak power reaches up to 460 Wp (STC). The half-cut cell design splits each module into two independent electrical sections, limiting losses under localized shading. The Multi-Busbar (MBB) layout further shortens current paths inside the module and reduces resistive losses, resulting in higher real-world energy yield. ### Are HT48-18X(N) panels compatible with 1500 VDC systems and mainstream inverters? Yes, the HT48-18X(N) series is rated for systems up to 1500 VDC, enabling longer string configurations and more efficient MPPT optimization in commercial projects. The 1500 V system voltage is supported by leading inverter manufacturers including Huawei, SMA, Fronius, and GoodWe. Compatibility with a specific inverter model should always be confirmed against its technical datasheet. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ht48-18xn-455-au-a655b0562023.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +50 W, cooler, +2.5 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +45 W, cooler, +2.2 pp | | [Suntech STP-NT11/48QGSF-490](https://comparepv.com/panel/suntech-stp-nt11-48qgsf-490) | 490 W | +45 W, cooler, +2.2 pp | | [JA Solar JAT54S40-485/LR](https://comparepv.com/panel/ja-solar-jat54s40-485-lr) | 485 W | +40 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a485-mce54mw) | 485 W | +40 W, cooler, +2.0 pp | | [Longi Solar LR7-54HJD-495M](https://comparepv.com/panel/longi-lr7-54hjd-495m) | 495 W | +50 W, cooler, +2.0 pp | | [AIKO AIKO-A485-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a485-mah54mw) | 485 W | +40 W, cooler, +2.0 pp | | [HT-SAAE HT54-18X(ND)-F 440W](https://comparepv.com/panel/ht-saae-ht54-18x-nd-f-440w) | 440 W | Heavier, -0.3 pp | | [HT-SAAE HT48-18X(N)-450W](https://comparepv.com/panel/ht-saae-ht48-18x-n-450w) | 450 W | Very close match | | [HT-SAAE HT48-18X(N)-455W](https://comparepv.com/panel/ht-saae-ht48-18x-n-455w) | 455 W | +10 W, +0.5 pp | | [HT-SAAE HT48-18X(N)-460W](https://comparepv.com/panel/ht-saae-ht48-18x-n-460w) | 460 W | +15 W, +0.7 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +60 W, cooler, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +55 W, cooler, +2.2 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +55 W, cooler, +2.2 pp | --- Source: https://comparepv.com/panel/ht-saae-ht48-18x-n-445w Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.