--- title: "Silfab SIL-430-QD 430W Solar Panel - Specs & Review | ComparePV" description: "Silfab SIL-430-QD 430W solar panel. Specs: 22.10% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/silfab-sil-430-qd-1" updated: 2026-09-11 --- # Silfab SIL-430-QD Light for its output, no clear weak spot 321 panels in the segment N-type 400-450 W ## Identity - **Manufacturer:** Silfab - **Model:** SIL-430-QD - **Series:** Silfab Prime NTC - **Rated power:** 430 W - **Cell technology:** N-type ## How it compares Compared against segment N-type 400-450 W (321 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 430 W | 430 W | Typical | | | Module efficiency | 22.10% | 21.91% | Typical | 6,012 | | Power density | 220.5 | 218.3 | Typical | 6,191 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 21.0 kg | 22.0 kg | Strong - top 24% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 22.10% | 21.91% | Typical | 6,012 | | Power density | 220.5 | 218.3 | Typical | 6,191 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 48.8 | 51.2 | Strong - top 24% | 2,492 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **48.8 kg per kWp** - Top 24% of the N-type 400-450 W segment, against a median of 51.2. - **Best for:** Residential and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 430 W - **Efficiency:** 22.10 % - **Voltage at Pmax (Vmp):** 33.25 V - **Current at Pmax (Imp):** 12.93 A - **Open-circuit voltage (Voc):** 38.91 V - **Short-circuit current (Isc):** 13.87 A - **Max system voltage:** 1000 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.240 %/degC - **Temperature coefficient of Isc:** 0.040 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 ### Physical - **Length:** 1721 mm - **Width:** 1133 mm - **Thickness:** 35 mm - **Weight:** 21.0 kg - **Area:** 1.95 m2 - **Power density:** 220.5 Wp/m2 ### Warranty and degradation - **Product warranty:** 25 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 89.3 % - **First-year degradation:** 2.00 % - **Annual degradation:** 0.30 % - **Output after 30 years:** 384 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 6012 of 14005 | | Power density | 6191 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 2492 of 14005 | | Warranty | 21 of 14005 | ## About this series The Silfab Prime NTC series is designed to maximize roof space utilization while maintaining an elegant appearance. The use of **N-type cells in TOPCon technology** results in more stable module performance over a longer period and lower energy losses due to natural degradation compared to many standard designs. This is a real benefit for investors who prioritize predictable power generation and a better self-consumption balance. In practice, Prime NTC stands out due to **improved efficiency in lower sunlight conditions** and **better performance at higher temperatures**, which helps maintain production even when conditions are not ideal. An additional advantage is **increased tolerance to partial shading**, which is important on roofs with chimneys, skylights, or antennas. This series is particularly well-suited for single-family homes and prosumer installations, where every square meter counts, and a consistent aesthetic is important - the **triple-black design** complements modern roofing materials. ## Notable figures - At 22.1% efficiency, this panel is on par with typical \*\*N-type 400-450W\*\* modules - Power density of 220.5 W/m² matches the \*\*N-type 400-450W\*\* median - Temperature coefficient of -0.29%/°C matches the \*\*N-type 400-450W\*\* median - At 21.0 kg, weight matches the \*\*N-type 400-450W\*\* median - #6012 for efficiency, #2165 for temperature performance out of 14005 panels ## Questions ### What warranty does the Silfab Prime NTC come with? The Silfab Prime NTC includes a 25-year product warranty and a 30-year linear power output warranty — one of the longest coverage packages in the premium residential segment. Silfab guarantees the module will retain at least 87.4% of its rated output after 30 years. This reflects the manufacturer's confidence in N-type TOPCon cell durability and is a strong argument when calculating long-term ROI. ### How do TOPCon cells in the Silfab Prime NTC differ from standard PERC cells? N-type TOPCon cells feature a thin tunnel oxide passivation layer that reduces charge carrier recombination. The result is higher efficiency (up to ~22.2%), a lower annual degradation rate (~0.4%/year vs. ~0.55% for typical PERC), and a superior temperature coefficient of -0.29%/°C. Over a 30-year system lifetime, this translates to meaningfully more energy yield compared to conventional P-type PERC modules. ### Is the Silfab Prime NTC a good fit for rooftops with chimneys or dormers that cause partial shading? Yes. The Prime NTC is built with 108 half-cut N-type cells, which significantly minimize the impact of partial shading on overall module output. The series is specifically designed for residential rooftop installations where chimneys, dormers, or antennas may create intermittent shading — a common scenario on single-family homes. Its shading tolerance is a key advantage over older P-type solutions. ### How does the Silfab Prime NTC perform during heat waves and overcast days? The Prime NTC carries a temperature coefficient of -0.29%/°C, among the best in the premium residential segment, limiting power loss on hot days compared to many PERC modules. In diffuse light conditions typical of overcast weather, N-type TOPCon cells deliver better low-irradiance performance than P-type technology, contributing to higher annual energy yield in variable, temperate climates. ### Does the all-black design of the Silfab Prime NTC affect its performance or longevity? The triple-black design (black frame, black backsheet, black cells) is primarily an aesthetic choice that pairs well with modern dark roofing materials. The black frame may marginally raise operating temperature, but this is offset by the excellent -0.29%/°C temperature coefficient of the N-type cells. Silfab backs the full module with a 25-year product warranty regardless of color variant. ### How many 440 W Silfab Prime NTC modules are needed for a typical 10 kWp system, and will they fit on an average roof? With the 440 W variant (SIL-440 QD), just 23 modules deliver 10.12 kWp of nameplate capacity — several panels fewer than with older 350–380 W modules. Fewer modules for the same output means a simpler installation and less roof area consumed, which is especially valuable on rooftops with limited usable surface area. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/Silfab-SIL-430-QD-Data-Final-96ce224d1b67.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A480-MAH54Mw](https://comparepv.com/panel/aiko-aiko-a480-mah54mw) | 480 W | +50 W, cooler, +2.0 pp | | [Gokin GK-5-54HG-480M](https://comparepv.com/panel/gokin-gk-5-54hg-480m) | 480 W | +50 W, cooler, +2.0 pp | | [Jinko Solar JKM480N-48QL6-DB-F2-EU](https://comparepv.com/panel/jinko-solar-jkm480n-48ql6-db-f2-eu) | 480 W | +50 W, heavier, +1.9 pp | | [Gamko New Energy GKA96N-PRO-480W](https://comparepv.com/panel/gamko-new-energy-gka96n-pro-480w) | 480 W | +50 W, hotter, +1.9 pp | | [Silfab SIL-420 QD](https://comparepv.com/panel/silfab-sil-420-qd) | 420 W | -10 W, -0.6 pp | | [Silfab SIL-440 QD](https://comparepv.com/panel/silfab-solar-inc-sil-440-qd) | 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, +2.9 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | +65 W, cooler, +2.7 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | +75 W, cooler, +2.6 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | +60 W, cooler, +2.4 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | +70 W, cooler, +2.4 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | +70 W, cooler, +2.4 pp | --- Source: https://comparepv.com/panel/silfab-sil-430-qd-1 Not in this file, on the page: a thirty-year output simulator and alternatives filtered by how closely they match these dimensions.