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Maxeon SPR-P6-505-UPP
Maxeon Brand review

SPR-P6-505-UPP

505 Wp PERC Bifacial 70%
ComparePV verdict

Strong in heat, heavy for its output

Rank 9,280 of 14,005
Compare panels Datasheet PDF
Power (Wp)
505
Weak · bottom 11%
Efficiency (%)
19.40
Weak · bottom 1%
Density (Wp/m²)
194.0
Weak · bottom 1%
Temp (%/°C)
-0.340
Strong · top 23%
Weight (kg)
32.4
Weak · 4.0 kg above median
Warranty (yrs)
25
Weak · bottom 23%

Maxeon Performance 6 photovoltaic panels redefine reliability standards through an innovative design based on shingled cells. Unlike traditional modules, this series utilizes flexible conductive connections instead of rigid copper ribbons, which effectively eliminates the most common cause of failure - micro-cracks occurring due to cyclic temperature changes. Thanks to a unique parallel circuit layout, these modules offer better performance in shaded conditions, as current flows through the panel via multiple independent paths, radically minimizing power drops. This is a solution dedicated to demanding investors seeking uncompromising durability in rooftop installations exposed to strong wind or heavy snow. The series is characterized by high resistance to potential-induced degradation and excellent thermal stability, resulting in higher energy yields even on hot days. By choosing these modules, you eliminate the risk of premature material fatigue, which often affects standard panels with soldered busbars. This is the maximum lifespan of a photovoltaic system based on technology that effectively manages physical challenges for decades, ensuring peace of mind and a predictable return on investment.

Ranking

706 panels in the segment PERC 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 19.40% 20.90% Weak · bottom 1% 12,735
Power density 194.0 209.0 Weak · bottom 1% 12,735
Temperature coefficient -0.340 -0.350 Strong · top 23% 8,778
Weight per kWp 64.2 53.0 Weak · bottom 1% 12,965
Performance warranty 25 yrs 30 yrs Weak · bottom 23% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 6 caution
Best for

Residential, commercial, shaded-installations and hot-climate.

Not ideal for

Weight-limited structures, tight roof space and roofs where every square metre has to count.

Strengths
-0.340 %/°C temperature coefficient

Top 23% of the PERC 500-550 W segment, against a median of -0.350.

Watch-outs
64.2 kg per kWp

Bottom 1% of the PERC 500-550 W segment, against a median of 53.0. Ranked 12,965th in the whole database.

19.40% module efficiency

Bottom 1% of the PERC 500-550 W segment, against a median of 20.90%. Ranked 12,735th in the whole database.

194.0 watts per square metre

Bottom 1% of the PERC 500-550 W segment, against a median of 209.0. Ranked 12,735th in the whole database.

What owners get
Shingled cells with flexible interconnects

Instead of rigid copper busbars, the module uses flexible conductive interconnects between Maxeon Hypercell strips, eliminating solder-joint microcracks caused by thermal cycling — the most common failure mode in conventional busbar-tabbed panels.

Parallel circuit layout - shade tolerance

Current flows through multiple independent paths rather than a single series cell string, so partial shading (e.g., from a leaf or chimney) causes a significantly smaller drop in overall module output compared to standard PERC panels.

Bifacial energy generation

The glass-glass bifacial construction captures reflected light on the rear side, which on light-colored ground surfaces or elevated roof mounts can boost annual energy yield by several percent to over ten percent compared to monofacial modules.

25-year product and power warranty

A full 25-year warranty covering both the product and power output is typical of the premium tier-1 segment and exceeds the standard 10-15-year product warranty offered by many budget PERC manufacturers.

Trade-offs
Production discontinued in 2024

The Performance 6 series was discontinued in 2024 in favor of Performance 7, meaning limited availability of warranty service, replacement parts, and matching modules for expanding existing installations.

PERC efficiency trails newer N-type technology

The 19-20.2% efficiency based on older PERC cell technology clearly lags comparable-power N-type TOPCon/HJT competitors, e.g., Jinko Tiger Neo (23.61%) or Jolywood Black Series (23.6%) — a gap of roughly 3-4.6 percentage points means lower energy yield per unit of roof area.

Manufacturer financial distress undermines warranty bankability

Maxeon Solar Technologies filed for judicial management in Singapore in April 2026, following 2024 U.S. CBP product detentions and the bankruptcy of former parent company SunPower. Despite its formal tier-1 status, the manufacturer's actual ability to honor a 25-year warranty is currently uncertain.

Notes from the database
  • At 19.4% efficiency, this panel is 1.5pp below the PERC 500-550W median of 20.9%
  • Power density of 194.0 W/m² is 15.0 W/m² below PERC 500-550W median (209.0 W/m²) - needs more roof space
  • Temperature coefficient of -0.34%/°C matches the PERC 500-550W median
  • Weight of 32.4 kg is 4.0 kg above PERC 500-550W median (28.4 kg) - verify structural support
  • Bifaciality factor of 70% can add 4-10% extra yield with reflective mounting surface

Specifications

Open datasheet PDF
Nominal power (Pmax) 505 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.40 % Weak Segment median 20.90%
Vmpp · Impp 37.50 V · 13.47 A Operating point at max power
Voc · Isc 45.80 V · 14.38 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1092×35 mm · 2.60 m² of roof
Weight 32.4 kg Weak Weak · 4.0 kg above median
Bifaciality 70 % Rear output as a share of front
Coefficient Pmax -0.340 %/°C Strong top 23% of its segment
Coefficient Voc · Isc -0.280 · 0.060 %/°C
Product warranty 25 years Hardware defects only
Performance warranty 25 years Weak bottom 23% · median 30 yrs
End-of-warranty output 87.2 % Equals 429 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
-0.340 %/°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
Maxeon SPR-P6-505-UPP 505 W 19.40% -0.340 32.4 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +5.6 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +5.4 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +5.3 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, lighter, +5.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +5.1 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +5.1 pp
SPR-P6-495-UPP 495 W 19.00% -0.340 32.4 kg -10 W, -0.4 pp
SPR-P6-500-UPP 500 W 19.20% -0.340 32.4 kg Very close match
SPR-P6-510-UPP 510 W 19.60% -0.340 32.4 kg +0.2 pp
SPR-P6-515-UPP 515 W 19.80% -0.340 32.4 kg +10 W, +0.4 pp
SPR-P6-520-UPP 520 W 20.00% -0.340 32.4 kg +15 W, +0.6 pp
SPR-P6-525-UPP 525 W 20.20% -0.340 32.4 kg +20 W, +0.8 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +175 W, cooler, +5.8 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +170 W, cooler, +5.6 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +195 W, cooler, +5.6 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +190 W, cooler, +5.5 pp

Found 72 panels of the same or similar size to this one, within ±10 mm. See them here Found 72 panels of the same or similar size to this one, within ±25 mm. See them here Found 1196 panels of the same or similar size to this one, within ±50 mm. See them here Found 1892 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What makes the shingled cell technology in Maxeon Performance 6 panels stand out?
Maxeon Performance 6 replaces traditional soldered copper busbars with flexible conductive adhesive bonds between PERC cells arranged in a shingled layout. This eliminates mechanical stress caused by thermal cycling, dramatically reducing microcracks. The result is lower annual degradation and greater module longevity compared to conventional busbar panels, making it a strong choice for long-term residential and commercial installations.
Is the Maxeon Performance 6 a bifacial panel and how much extra energy does the rear side generate?
Yes, the Performance 6 series is available in a bifacial configuration. The rear side captures reflected irradiance with a bifaciality factor of approximately 70%. This translates to a real energy gain of several to over ten percent depending on ground albedo. Installations over white gravel, snow, or light-colored roofing membranes benefit the most from this bifacial yield boost.
What warranty does the Maxeon Performance 6 come with?
Maxeon provides a 25-year product warranty covering material and manufacturing defects, as well as a 25-year linear power output warranty. Having both warranties at the same length sets the Performance 6 apart from many competitors that offer only 10–12 years of product coverage. As a Tier 1 manufacturer headquartered in Singapore, Maxeon has the financial backing to honor warranty claims over the full term.
Can the Maxeon Performance 6 at 525 Wp handle heavy wind loads and snow accumulation on rooftops?
Yes. The shingled construction removes the traditional failure point of solder joint fatigue under long-term mechanical stress. Bifacial variants with dual-glass lamination further increase resistance to snow loads and hail impact. The series is specifically designed for demanding rooftop environments where repeated thermal and mechanical cycling exceeds typical conditions.
Why does Maxeon Performance 6 perform better under partial shading than standard panels?
The shingled cell layout creates multiple parallel electrical circuits within the module. When part of the panel is shaded, current flows through unobstructed paths, keeping power losses to a minimum. In a standard series-connected busbar module, even minor shading on a single cell can significantly reduce the output of the entire string or require costly bypass diodes to mitigate the effect.
Is the Maxeon Performance 6 still available for purchase?
The Maxeon Performance 6 series has been discontinued and is no longer in regular production. Availability in Europe is very limited and depends on distributor stock levels. If you need a similar shingled cell technology with current manufacturer support, ask your distributor about up-to-date alternatives from Maxeon's current lineup or other Tier 1 manufacturers offering comparable performance and warranty terms.
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