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Solarspace Brand review

SS8-72HD-545M

545 Wp PERC Bifacial 70%
ComparePV verdict

Strong in heat, no clear weak spot

Rank 7,395 of 14,005
Compare panels Datasheet PDF
Power (Wp)
545
Strong · top 12%
Efficiency (%)
21.10
Strong · top 20%
Density (Wp/m²)
211.0
Strong · top 18%
Temp (%/°C)
-0.334
Strong · top 12%
Weight (kg)
31.2
Typical · median 28.4 kg
Warranty (yrs)
30
Typical · median 30 yrs

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

706 panels in the segment PERC 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.10% 20.90% Strong · top 20% 9,297
Power density 211.0 209.0 Strong · top 18% 9,312
Temperature coefficient -0.334 -0.350 Strong · top 12% 8,747
Weight per kWp 57.2 53.0 Typical 11,137
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

3 positive · 0 caution
Best for

Commercial, utility-scale and shaded-installations.

Strengths
-0.334 %/°C temperature coefficient

Top 12% of the PERC 500-550 W segment, against a median of -0.350.

211.0 watts per square metre

Top 18% of the PERC 500-550 W segment, against a median of 209.0.

21.10% module efficiency

Top 20% of the PERC 500-550 W segment, against a median of 20.90%.

Notes from the database
  • At 21.1% efficiency, this panel is on par with typical PERC 500-550W modules
  • At 211.0 W/m² power density, roof space requirements are typical for PERC 500-550W panels
  • Temperature coefficient of -0.33%/°C matches the PERC 500-550W median
  • At 31.2 kg, this panel is 2.8 kg heavier than the PERC 500-550W median (28.4 kg) - more demanding for installation crews
  • Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 545 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.10 % Strong Segment median 20.90%
Vmpp · Impp 41.81 V · 13.04 A Operating point at max power
Voc · Isc 49.76 V · 13.92 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 28.4 kg
Cells 144 · PERC Monocrystalline
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.334 %/°C Strong top 12% 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 Typical median 30 yrs · median 30 yrs
End-of-warranty output 85.0 % Equals 463 W guaranteed
Degradation 2.00 → 0.45 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Solarspace in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 545 Wp appear here. The rest cover the whole series.

I-V/P-V Curve at Different Irradiation (SS8-72HD-545M) I-V/P-V Curve at Different Irradiation (SS8-72HD-545M) 545 W I-V Curve at Different Temperature (SS8-72HD-545M) I-V Curve at Different Temperature (SS8-72HD-545M) 545 W

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-545M 545 W 21.10% -0.334 31.2 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.9 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +3.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, lighter, +3.7 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.6 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +3.5 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +3.4 pp
SS8-72HD-535M 535 W 20.71% -0.334 31.2 kg -10 W, -0.4 pp
SS8-72HD-540M 540 W 20.90% -0.334 31.2 kg -0.2 pp
SS8-72HD-550M 550 W 21.29% -0.334 31.2 kg Very close match
SS8-72HD-555M 555 W 21.48% -0.334 31.2 kg +10 W, +0.4 pp
SS8-72HD-560M 560 W 21.68% -0.334 31.2 kg +15 W, +0.6 pp
SS8-72HD-565N 565 W 21.87% -0.290 31.2 kg +20 W, cooler, +0.8 pp
SS8-72HD-570N 570 W 22.07% -0.290 31.2 kg +25 W, cooler, +1.0 pp
SS8-72HD-575N 575 W 22.26% -0.290 31.2 kg +30 W, cooler, +1.2 pp
SS8-72HD-580N 580 W 22.45% -0.290 31.2 kg +35 W, cooler, +1.3 pp
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +105 W, cooler, +4.1 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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