--- title: "Suntech STP430S-H48-Nfb+ Solar Panel: Specs & Datasheet | ComparePV" description: "Suntech STP430S-H48-Nfb+ solar panel. Specs: 21.50% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/suntech-stp430s-h48-nfb-1" image: "https://comparepv.com/og/panel/suntech-stp430s-h48-nfb-1.png" updated: 2026-09-11 --- # Suntech STP430S-H48-Nfb+ Middle of its segment, modest efficiency 1,220 panels in the segment TOPCon 400-450 W ## Identity - **Manufacturer:** Suntech - **Model:** STP430S-H48-Nfb+ - **Series:** Ultra V Pro mini (FULL-BLACK Glass-Glass MONOFACIAL) - **Rated power:** 430 W - **Cell technology:** TOPCon ## How it compares Compared against segment TOPCon 400-450 W (1220 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 430 W | 435 W | Typical | | | Module efficiency | 21.50% | 22.00% | Weak - bottom 17% | 8,022 | | Power density | 215.2 | 220.2 | Weak - bottom 23% | 7,880 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight (kg) | 21.5 kg | 22.0 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.50% | 22.00% | Weak - bottom 17% | 8,022 | | Power density | 215.2 | 220.2 | Weak - bottom 23% | 7,880 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,220 | | Weight per kWp | 50.0 | 51.5 | Typical | 3,329 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **21.50% module efficiency** - Bottom 17% of the TOPCon 400-450 W segment, against a median of 22.00%. - **215.2 watts per square metre** - Bottom 23% of the TOPCon 400-450 W segment, against a median of 220.2. - **Best for:** Residential, shaded-installations and BIPV. - **Not ideal for:** Tight roof space and roofs where every square metre has to count. ## Specification ### Electrical - **Rated power (Pmax):** 430 W - **Efficiency:** 21.50 % - **Voltage at Pmax (Vmp):** 28.61 V - **Current at Pmax (Imp):** 15.03 A - **Open-circuit voltage (Voc):** 34.87 V - **Short-circuit current (Isc):** 15.69 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.250 %/degC - **Temperature coefficient of Isc:** 0.046 %/degC - **NOCT:** 42 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** TOPCon - **Cell count:** 96 ### Physical - **Length:** 1762 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 21.5 kg - **Area:** 2.00 m2 - **Power density:** 215.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 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:** 376 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 8022 of 14129 | | Power density | 7880 of 14129 | | Temperature coefficient | 2220 of 14129 | | Weight | 3329 of 14129 | | Warranty | 21 of 14129 | ## About this series Suntech Ultra V Pro Mini (FULL-BLACK Glass-Glass MONOFACIAL) is a series designed for maximum energy output on limited roof space-without compromising aesthetics. The application of **N-type TOPCon cells** and the **half-cut** design helps minimize losses and improves module performance under partial shading, which has real significance on rooftops with chimneys, windows, or antennas. The key advantage of this series is the **glass-glass** structure-enhanced rigidity and weather resistance, along with better parameter stability over time compared to many glass-film panels. The **monofacial** version is a suitable choice where bifacial capability isn't necessary (e.g., standard inclined roofs), and reliable operation is prioritized. The **full-black** finish facilitates seamless integration with modern roofing materials and premium designs while remaining a practical solution for residential and small commercial installations, where reliability, longevity, and high energy output per square meter are essential. ## Notable figures - Efficiency of 21.5% matches the \*\*TOPCon 400-450W\*\* median - At 215.2 W/m², this panel generates 5.0 W/m² less per unit area than \*\*TOPCon 400-450W\*\* median (220.2 W/m²) - At -0.29%/°C, hot weather performance is typical for \*\*TOPCon 400-450W\*\* panels - #8022 for efficiency, #2220 for temperature performance out of 14129 panels ## Questions ### Are Suntech Ultra V Pro mini FULL-BLACK panels suitable for a sloped residential roof? Yes, this is one of the primary applications for this series. The glass-glass construction provides higher rigidity and better resistance to snow and wind loads than typical glass-backsheet panels, while the full-black finish blends well with dark roof tiles. The monofacial version performs predictably regardless of the color or texture of the roof surface beneath the panel. ### How much power does one Suntech Ultra V Pro mini panel produce, and how many are needed for a 6 kW system? Each panel reaches a maximum power output of 440 Wp. To build a system of around 6 kW, you would need approximately 14 modules (14 x 440 Wp = 6160 Wp). The exact number depends on available roof space, tilt angle, and inverter sizing determined by the system designer. ### What warranty comes with Suntech Ultra V Pro mini panels, and how does it compare to other manufacturers? The manufacturer offers a 25-year product warranty and a 30-year power performance warranty, which is above the market standard of 12-15 years for product coverage and 25 years for power output. This is enabled by the glass-glass construction, which better protects the cells from moisture ingress and degradation over time. ### What's the difference between the monofacial and bifacial versions, and which should I choose for a home installation? A monofacial panel generates energy only from its front side, while a bifacial panel also captures light reflected off the ground onto the rear surface. On a standard sloped roof, where the panel's backside has no access to light, bifaciality provides no real benefit - making the monofacial Ultra V Pro mini a more cost-effective choice with equal efficiency for this type of installation. ### What advantage does N-type TOPCon technology offer over older P-type cells? TOPCon cells deliver higher efficiency and lower power degradation in the first year and throughout subsequent years of operation compared to traditional P-type PERC cells. In practice, this means higher energy yield from the same roof area and more stable power output across the full 30-year power warranty period. ### Does the glass-glass construction require special mounting hardware or a stronger roof structure? Glass-glass panels are typically somewhat heavier than glass-backsheet panels, so this should be factored into the choice of mounting system, though it's generally not an issue for standard sloped roofs on single-family homes. Installation uses standard mounting rails compatible with the panel frame, and the added rigidity of the glass-glass design further improves resistance to mechanical damage. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/176830744967db9603aff24-506dd704cb06.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A480-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a480-mah54mw) | 480 W | +50 W, cooler, +2.6 pp | | [Gokin GK-5-54HG-480M](https://comparepv.com/panel/gokin-gk-5-54hg-480m) | 480 W | +50 W, cooler, +2.6 pp | | [Jinko Solar JKM480N-48QL6-DB-F2-EU](https://comparepv.com/panel/jinko-solar-jkm480n-48ql6-db-f2-eu) | 480 W | +50 W, cooler, +2.5 pp | | [Gamko New Energy GKA96N-PRO-480W](https://comparepv.com/panel/gamko-new-energy-gka96n-pro-480w) | 480 W | +50 W, hotter, +2.5 pp | | [Suntech STP435S-H48-Nfb](https://comparepv.com/panel/suntech-stp435s-h48-nfb) | 435 W | +0.3 pp | | [Suntech STP440S-H48-Nfb](https://comparepv.com/panel/suntech-stp440s-h48-nfb) | 440 W | +10 W, +0.5 pp | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | +80 W, cooler, +3.5 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +65 W, cooler, +3.3 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +75 W, cooler, +3.2 pp | | [WINAICO WST-505BKX54-A2](https://comparepv.com/panel/winaico-wst-505bkx54-a2) | 505 W | +75 W, heavier, +3.2 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +60 W, cooler, +3.0 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +70 W, cooler, +3.0 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +70 W, cooler, +3.0 pp | --- Source: https://comparepv.com/panel/suntech-stp430s-h48-nfb-1 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.