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Seraphim SRP-660-BMC-HV
Seraphim Brand review

SRP-660-BMC-HV

660 Wp PERC
ComparePV verdict

Light for its output, short guarantee

Rank 3,478 of 14,005
Compare panels Datasheet PDF
Power (Wp)
660
Typical for its class
Efficiency (%)
21.25
Typical · median 21.25%
Density (Wp/m²)
212.5
Typical · median 212.5
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
32.2
Strong · 2.3 kg below median
Warranty (yrs)
25
Weak · bottom 21%

The Seraphim Seco solar panel series introduces a new level of quality in the field of energy efficiency, basing its construction on advanced N-type cell technology. This solution effectively eliminates the problem of rapid power degradation in the first years of use, which directly translates into a higher return on investment for homeowners and businesses. A key differentiator of the Seco series is the optimized bifacial design, which allows for the absorption of reflected light from both sides of the module, significantly increasing the total energy yield by more than ten percent compared to standard single-sided solutions. These models are characterized by exceptional resistance to extreme mechanical loads, while maintaining reduced module weight, making them an ideal choice for roofs with limited load-bearing capacity. Thanks to the use of Half-Cut cell technology, these panels perform excellently in partial shading conditions, minimizing power losses. Choosing the Seco series is a guarantee of stable system operation for decades, offering a low temperature coefficient that protects installation performance during hot days. This product is dedicated to investors seeking uncompromising quality, combining modern design with the highest resistance to LID and LeTID degradation phenomena, which puts Seraphim Seco a step ahead of traditional market competition.

Ranking

320 panels in the segment PERC 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.25% 21.25% Typical 8,904
Power density 212.5 212.5 Typical 8,959
Temperature coefficient -0.340 -0.340 Typical 8,778
Weight per kWp 48.8 52.3 Strong · top 5% 2,468
Performance warranty 25 yrs 30 yrs Weak · bottom 21% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 1 caution
Best for

Commercial, utility-scale, shaded-installations and hot-climate.

Not ideal for

Owners who want a long output guarantee.

Strengths
48.8 kg per kWp

Top 5% of the PERC 650-700 W segment, against a median of 52.3. Ranked 2,468th in the whole database.

Watch-outs
25 year performance warranty

Bottom 21% of the PERC 650-700 W segment, against a median of 30 yrs.

Notes from the database
  • At 21.2% efficiency, this panel is on par with typical PERC 650-700W modules
  • Power density of 212.5 W/m² matches the PERC 650-700W median
  • At -0.34%/°C, hot weather performance is typical for PERC 650-700W panels
  • At 32.2 kg, this panel is 2.3 kg lighter than PERC 650-700W median (34.5 kg) - easier handling during installation
  • In the top 64% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 660 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.25 % Typical Segment median 21.25%
Vmpp · Impp 38.16 V · 17.29 A Operating point at max power
Voc · Isc 45.88 V · 18.44 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2384×1303×33 mm · 3.11 m² of roof
Weight 32.2 kg Strong Strong · 2.3 kg below median
Cells 132 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.340 of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 21% · median 30 yrs
End-of-warranty output 84.8 % Equals 542 W guaranteed
Degradation 2.00 → 0.55 % 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
-

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

Heat losses
-0.340 %/°C against a segment median of -0.340
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Seraphim SRP-660-BMC-HV 660 W 21.25% -0.340 32.2 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +3.9 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, +3.9 pp, +5 yr warranty
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, +3.8 pp, +5 yr warranty
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +3.8 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg Cooler, +3.8 pp, +5 yr warranty
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg Cooler, +3.6 pp, +5 yr warranty
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, +3.6 pp, +5 yr warranty
SRP-645-BMC-BG 645 W 20.76% -0.340 38.5 kg Heavier, -0.5 pp, +5 yr warranty
SRP-650-BMC-BG 650 W 20.92% -0.340 38.5 kg Heavier, -0.3 pp, +5 yr warranty
SRP-655-BMC-BG 655 W 21.09% -0.340 38.5 kg Heavier, +5 yr warranty
SRP-665-BMC-HV 665 W 21.41% -0.340 32.2 kg Very close match
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +145 W, cooler, +3.9 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +140 W, cooler, +3.6 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +135 W, cooler, +3.6 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +130 W, cooler, +3.4 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +100 W, cooler, +3.2 pp

Found 1390 panels of the same or similar size to this one, within ±10 mm. See them here Found 1400 panels of the same or similar size to this one, within ±25 mm. See them here Found 1400 panels of the same or similar size to this one, within ±50 mm. See them here Found 1432 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What are the product and power output warranties for the Seraphim Seco series?
Seraphim Seco panels come with a 15-year product warranty covering materials and workmanship, plus a 25-year linear power output warranty. First-year degradation is capped at 2%, followed by approximately 0.55% per year thereafter, ensuring over 80% of rated power after 25 years. These terms are in line with other Tier 1 manufacturers and make the Seco series a solid long-term investment.
What is PERC cell technology used in Seraphim Seco panels, and is it a modern solution?
PERC (Passivated Emitter and Rear Cell) is an advanced monocrystalline silicon cell design that adds a rear passivation layer to reflect photons that would otherwise be lost, pushing module efficiency above 21%. The Seco 555W pairs PERC with multi-busbar wiring and 144 half-cut cells, delivering higher real-world energy yield compared to older full-cell PERC designs.
How do Seraphim Seco 555W panels perform under partial shading from a chimney or antenna?
The 144 half-cut cell layout splits each cell into two independent halves, so shade falling on one half of the module does not suppress output from the other. This significantly reduces mismatch losses compared to full-cell panels. Seraphim Seco is therefore a practical choice for rooftops with chimneys, dormers, or neighboring obstructions that cause intermittent shading.
How much does a Seraphim Seco 555W panel weigh, and is it suitable for a roof with limited load capacity?
The SRP-555 model weighs approximately 32 kg with dimensions of 2278 × 1134 × 30 mm. Before installation on an older or structurally limited roof, a structural assessment is strongly recommended, as the combined load of multiple panels plus racking hardware can be substantial. For roofs with very low load ratings, lighter modules in a lower wattage class may be a safer choice.
Is Seraphim a trustworthy manufacturer, and what does Tier 1 status actually mean in practice?
Seraphim Solar System is a Chinese manufacturer headquartered in Changzhou and classified as Tier 1 by Bloomberg NEF. In practice, Tier 1 means fully automated in-house production lines, a proven track record of project financing from major banks, and consistent product quality. Their 15-year product warranty and established after-sales support make Seraphim Seco a reliable option for residential and commercial installations with a 25-year investment horizon.
Do Seraphim Seco panels lose significant power on hot summer days?
Like all silicon-based PV modules, Seco panels lose some output as cell temperature rises above 25°C STC. The combination of PERC technology, multi-busbar design, and half-cut cells results in a competitive temperature coefficient of approximately -0.34% per degree Celsius. In a central European climate, the thermal impact on annual energy yield is moderate, and the panels maintain stable long-term performance across seasonal temperature swings.
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