--- title: "Solarspace SSA-54HD-485N 485W Solar Panel - Specs & Review | ComparePV" description: "Solarspace SSA-54HD-485N 485W solar panel. Specs: 21.81% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/solarspace-ssa-54hd-485n" updated: 2026-09-11 --- # Solarspace SSA-54HD-485N Middle of its segment, needs the roof space 301 panels in the segment N-type 450-500 W ## Identity - **Manufacturer:** Solarspace - **Model:** SSA-54HD-485N - **Series:** SSA-54HD 485-510N (Lumina II) - **Rated power:** 485 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 450-500 W (301 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 485 W | 470 W | Strong - top 23% | | | Module efficiency | 21.81% | 22.52% | Weak - bottom 13% | 7,015 | | Power density | 218.1 | 225.2 | Weak - bottom 12% | 6,998 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight (kg) | 26.5 kg | 23.7 kg | Weak - bottom 20% | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 21.81% | 22.52% | Weak - bottom 13% | 7,015 | | Power density | 218.1 | 225.2 | Weak - bottom 12% | 6,998 | | Temperature coefficient | -0.290 | -0.290 | Typical | 2,165 | | Weight per kWp | 54.6 | 49.5 | Weak - bottom 20% | 9,004 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Watch out for - **218.1 watts per square metre** - Bottom 12% of the N-type 450-500 W segment, against a median of 225.2. - **21.81% module efficiency** - Bottom 13% of the N-type 450-500 W segment, against a median of 22.52%. - **54.6 kg per kWp** - Bottom 20% of the N-type 450-500 W segment, against a median of 49.5. - **Best for:** Residential, commercial and hot-climate. - **Not ideal for:** Roofs where every square metre has to count, tight roof space and weight-limited structures. ## Specification ### Electrical - **Rated power (Pmax):** 485 W - **Efficiency:** 21.81 % - **Voltage at Pmax (Vmp):** 32.72 V - **Current at Pmax (Imp):** 14.84 A - **Open-circuit voltage (Voc):** 39.52 V - **Short-circuit current (Isc):** 15.76 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.290 %/degC - **Temperature coefficient of Voc:** -0.260 %/degC - **Temperature coefficient of Isc:** 0.045 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 108 - **Bifacial:** yes ### Physical - **Length:** 1961 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 26.5 kg - **Area:** 2.22 m2 - **Power density:** 218.1 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:** 424 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 7015 of 14005 | | Power density | 6998 of 14005 | | Temperature coefficient | 2165 of 14005 | | Weight | 9004 of 14005 | | Warranty | 21 of 14005 | ## About this series The Solarspace SSA-54HD 485-510N (Lumina II) series are monocrystalline modules designed for high performance in real-world conditions, even under cloudy skies and at elevated temperatures. The use of **N-type cells in TOPCon technology** results in more stable energy production over the long term, with limited degradation and good performance even in less sunny conditions. This is a practical solution to a common problem faced by installers and investors: how to maximize energy yield from a limited roof area. The Lumina II modules also stand out due to their **favorable temperature coefficient**, which helps maintain efficiency during the summer months when traditional systems lose the most performance. Additional safety is provided by their **robust construction and sealed connection box**, as well as compatibility with popular connectors, which makes installation and maintenance easier. This is a good choice for residential and commercial installations, where **maximizing energy yield from a limited space** and predictable performance over the years are important, and these are supported by a **long linear warranty**. ## Notable figures - Module efficiency of 21.8% is 0.7pp below average for \*\*N-type 450-500W\*\* panels (median: 22.5%) - At 218.1 W/m², this panel generates 7.1 W/m² less per unit area than \*\*N-type 450-500W\*\* median (225.2 W/m²) - Temperature coefficient of -0.29%/°C matches the \*\*N-type 450-500W\*\* median - At 26.5 kg (2.8 kg above \*\*N-type 450-500W\*\* median of 23.7 kg), requires checking roof load capacity - 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces ## Questions ### Are the Solarspace SSA-54HD Lumina II panels bifacial modules, and what does that mean for my system? Yes, the Lumina II series features bifacial modules. The rear side of the panel generates additional energy from light reflected off the roof surface or ground — an effect particularly pronounced with high-albedo surfaces such as white TPO membranes or light-colored gravel. Depending on the installation environment, this can translate to several extra percentage points of annual yield without increasing the system footprint. ### What warranty does the Solarspace SSA-54HD 485-510N (Lumina II) series come with? The manufacturer provides a 12-year product warranty and a 30-year linear power warranty. A linear warranty means degradation is spread evenly across the entire operating period, ensuring the panel retains a defined percentage of its original output after 30 years. This is one of the longer standards available on the market, reflecting the durability inherent to N-type TOPCon cells. ### Why is the N-type TOPCon technology in Lumina II better than older PERC cells? N-type TOPCon cells exhibit significantly lower initial degradation (LID/LeTID) and perform better at elevated temperatures and low irradiance levels. Standard P-type PERC modules typically lose 1 to 3 percent of rated power in the first months of operation due to light-induced degradation, while N-type cells are largely immune to this effect. The result is higher energy yield across the full system lifetime. ### What is the peak power of Solarspace Lumina II panels, and how many modules does a typical residential system need? The top model in the series delivers 510 Wp of peak power. A typical 10 kWp residential system requires approximately 20 modules. The high per-unit power output means you cover less roof area for the same energy production — a significant advantage whenever usable roof space is limited. ### Will the Solarspace SSA-54HD Lumina II series perform well in Central European climate conditions — on overcast days and in winter? Yes. Lumina II modules are engineered for real-world operating conditions, including diffuse irradiance and overcast skies. N-type TOPCon technology delivers better low-light performance than conventional PERC cells. A favorable temperature coefficient also limits power losses during summer months when panel temperatures rise, resulting in more consistent output throughout the year. ### Is Solarspace a reliable manufacturer — are they listed as Tier 1? Solarspace is recognized as a Tier 1 manufacturer by independent PV market analysts. This classification means the company meets strict criteria for financial stability, production capacity, and product quality. Tier 1 status also carries practical weight: modules from such manufacturers are more readily accepted by banks and leasing institutions financing renewable energy projects, making system financing more straightforward. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/ssa-54hd-n-1-1895220a00b6.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [Longi Solar LR7-54HJD-510M](https://comparepv.com/panel/longi-lr7-54hjd-510m) | 510 W | Cooler, lighter, +3.2 pp | | [AIKO AIKO-A495-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a495-mce54mw) | 495 W | Cooler, lighter, +3.0 pp | | [Longi Solar LR7-54HJD-505M](https://comparepv.com/panel/longi-lr7-54hjd-505m) | 505 W | Cooler, lighter, +2.9 pp | | [AIKO AIKO-A490-MCE54Mw](https://comparepv.com/panel/aiko-aiko-a490-mce54mw) | 490 W | Cooler, lighter, +2.7 pp | | [Longi Solar LR7-54HJD-500M](https://comparepv.com/panel/longi-lr7-54hjd-500m) | 500 W | Cooler, lighter, +2.7 pp | | [Talesun CIPRO-TN9C54M-500W](https://comparepv.com/panel/talesun-cipro-tn9c54m-500w) | 500 W | Cooler, lighter, +2.7 pp | | [Solarspace SSA-54HD-490N](https://comparepv.com/panel/solarspace-ssa-54hd-490n) | 490 W | +0.2 pp | | [Solarspace SSA-54HD-495N](https://comparepv.com/panel/solarspace-ssa-54hd-495n) | 495 W | +10 W, +0.5 pp | | [Solarspace SSA-54HD-500N](https://comparepv.com/panel/solarspace-ssa-54hd-500n) | 500 W | +15 W, +0.7 pp | | [Solarspace SSA-54HD-505N](https://comparepv.com/panel/solarspace-ssa-54hd-505n) | 505 W | +20 W, +0.9 pp | | [Solarspace SSA-54HD-510N](https://comparepv.com/panel/solarspace-ssa-54hd-510n) | 510 W | +25 W, +1.1 pp | | [Solarspace SSA-54HD-515N](https://comparepv.com/panel/solarspace-ssa-54hd-515n) | 515 W | +30 W, +1.4 pp | | [Longi Solar LR7-60HVH-560M](https://comparepv.com/panel/longi-lr7-60hvh-560m) | 560 W | +75 W, cooler, +3.0 pp | | [Longi Solar LR7-60HVH-555M](https://comparepv.com/panel/longi-lr7-60hvh-555m) | 555 W | +70 W, cooler, +2.8 pp | | [Longi Solar LR7-60HVHL-550M](https://comparepv.com/panel/longi-lr7-60hvhl-550m) | 550 W | +65 W, lighter, +2.6 pp | | [JA Solar JAT60S40-540/LR](https://comparepv.com/panel/ja-solar-jat60s40-540-lr) | 540 W | +55 W, lighter, +2.6 pp | --- Source: https://comparepv.com/panel/solarspace-ssa-54hd-485n Not in this file, on the page: a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.