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Solarspace Brand review

SS8-72HD-550M

550 Wp PERC Bifacial 70%
ComparePV verdict

Strong in heat, no clear weak spot

Rank 6,959 of 14,005
Compare panels Datasheet PDF
Power (Wp)
550
Weak · bottom 15%
Efficiency (%)
21.29
Typical · median 21.29%
Density (Wp/m²)
212.9
Typical · median 212.9
Temp (%/°C)
-0.334
Strong · top 11%
Weight (kg)
31.2
Typical · median 30.8 kg
Warranty (yrs)
30
Strong · top 25%

The Solarspace SS8-72HD 535-560M (Lumina I) series are modules designed to maximize energy yield under real-world operating conditions, particularly where stability of production and the cost-effectiveness of installations over the long term are crucial. The use of bifacial construction allows for efficient use of light reflected from the ground, resulting in better performance on ground surfaces, flat roofs, and in installations with bright surfaces. Thanks to half-cut cells, the modules minimize losses under partial shading and better handle microcracks, which increases their reliability.

Another key feature is the multi-busbar design and the dense arrangement of cells, which support higher efficiency and better performance in less sunny conditions. Double glass and a robust frame provide greater mechanical strength and durability in harsher weather conditions. This makes it a good choice for PV farms, commercial installations, and large rooftop systems, where energy yield, durability, and predictable production are key.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.29% 21.29% Typical 8,708
Power density 212.9 212.9 Typical 8,497
Temperature coefficient -0.334 -0.350 Strong · top 11% 8,747
Weight per kWp 56.7 52.7 Typical 10,830
Performance warranty 30 yrs 27 yrs Strong · top 25% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

2 positive · 0 caution
Best for

Commercial, utility-scale and shaded-installations.

Strengths
-0.334 %/°C temperature coefficient

Top 11% of the PERC 550-600 W segment, against a median of -0.350.

30 year performance warranty

Top 25% of the PERC 550-600 W segment, against a median of 27 yrs.

Notes from the database
  • At 21.3% efficiency, this panel is on par with typical PERC 550-600W modules
  • Power density of 212.9 W/m² matches the PERC 550-600W median
  • Temperature coefficient of -0.33%/°C matches the PERC 550-600W median
  • Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof
  • #8708 for efficiency, #8747 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 550 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.29 % Typical Segment median 21.29%
Vmpp · Impp 41.97 V · 13.10 A Operating point at max power
Voc · Isc 49.91 V · 14.02 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2278×1134×30 mm · 2.58 m² of roof
Weight 31.2 kg Typical Typical · median 30.8 kg
Cells 144 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.334 %/°C Strong top 11% of its segment
Coefficient Voc · Isc -0.265 · 0.045 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 25% · median 27 yrs
End-of-warranty output 85.0 % Equals 467 W guaranteed
Degradation 2.00 → 0.45 % First year, then annual

Simulations

Live - change any input
Lifetime output & value
30 years at 1200 kWh/kWp/year and €0.50 per kWh
Power in year 30
-
Lifetime energy
-
Energy value
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.334 %/°C against a segment median of -0.350
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Solarspace SS8-72HD-550M 550 W 21.29% -0.334 31.2 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.5 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.4 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.3 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +3.2 pp
SS8-72HD-535M 535 W 20.71% -0.334 31.2 kg -15 W, -0.6 pp
SS8-72HD-540M 540 W 20.90% -0.334 31.2 kg -10 W, -0.4 pp
SS8-72HD-545M 545 W 21.10% -0.334 31.2 kg Very close match
SS8-72HD-555M 555 W 21.48% -0.334 31.2 kg Very close match
SS8-72HD-560M 560 W 21.68% -0.334 31.2 kg +10 W, +0.4 pp
SS8-72HD-565N 565 W 21.87% -0.290 31.2 kg +15 W, cooler, +0.6 pp
SS8-72HD-570N 570 W 22.07% -0.290 31.2 kg +20 W, cooler, +0.8 pp
SS8-72HD-575N 575 W 22.26% -0.290 31.2 kg +25 W, cooler, +1.0 pp
SS8-72HD-580N 580 W 22.45% -0.290 31.2 kg +30 W, cooler, +1.2 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +100 W, cooler, +3.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +95 W, cooler, +3.7 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2547 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Solarspace SS8-72HD 535-560M (Lumina I) series still available for purchase?
The Lumina I series has been discontinued and is no longer actively offered by the manufacturer. If you need a comparable solution, the successor Lumina II (SS8-72HD 565-585N) based on TOPCon cells is worth considering — it delivers higher efficiency while retaining the same dual-glass bifacial design philosophy.
What warranty does Solarspace offer on the SS8-72HD 535-560M (Lumina I) panels?
Solarspace provides a 12-year product warranty covering manufacturing defects and materials, plus a 30-year linear power warranty guaranteeing at least 84.95% of rated output after three decades. For commercial installations and utility-scale PV plants, this provides a strong basis for long-term ROI calculations.
What does bifacial mean and does it actually increase energy yield on the Lumina I?
A bifacial module harvests solar energy from both the front glass and the rear glass, capturing light reflected from the ground or rooftop surface. On the Lumina I with its dual-glass construction, the gain is most pronounced on ground-mounted systems, flat roofs with light-colored membranes, or elevated racking. Depending on surface albedo, real-world yield bonuses typically range from 5 to 15 percent.
Does the Solarspace SS8-72HD 560M handle partial shading well — for example near a chimney or dormer?
Yes. The 144 half-cut PERC cells reduce the impact of shading — when one half of a cell is shaded, the other half continues producing power independently. Combined with a multi-busbar layout, resistive losses are significantly lower than in conventional full-cell modules. This makes Lumina I a practical choice for rooftop installations with obstructions.
Is Solarspace a reputable manufacturer — can it be trusted for a large-scale installation?
Solarspace holds Tier 1 status according to Bloomberg NEF, meaning banks finance projects using their modules without additional manufacturer verification. The company is headquartered in China and has an established track record in utility-scale and commercial PV segments. IEC certifications and a 30-year power warranty reflect the manufacturer's long-term commitment.
What is the peak power output of the Solarspace Lumina I and is it sufficient for a commercial system?
The top variant in the series reaches 560 Wp at up to 21.68% module efficiency. For commercial rooftops and PV farms, these are competitive figures — the 2278×1134 mm footprint delivers high power density per square meter. With snow load tolerance up to 5400 Pa and wind resistance up to 2400 Pa, the module is well-suited to demanding climatic conditions.
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