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Seraphim SRP-650-BTZ-BG
Seraphim Brand review

SRP-650-BTZ-BG

650 Wp TOPCon Bifacial 80%
ComparePV verdict

Solid all-round for its segment

Rank 1,341 of 14,005
Compare panels Datasheet PDF
Power (Wp)
650
Weak · bottom 13%
Efficiency (%)
23.25
Typical · median 22.40%
Density (Wp/m²)
232.5
Typical · median 223.7
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
34.6
Typical · median 34.6 kg
Warranty (yrs)
30
Typical · median 30 yrs

Seraphim Sable is a series of modules based on N-type TOPCon cells, designed to achieve high energy yields even under less-than-ideal conditions. Thanks to passivated contacts and a multi-busbar architecture, the panels efficiently "collect" current from the cells and perform better in shaded or low-light conditions - which is a significant advantage in the Polish climate, leading to more stable daily energy production.

In practice, Sable solves a common problem for investors: how to increase yield without adding more modules. This is facilitated by the glass-to-glass bifacial design, which can also utilize reflected light from the ground, while also improving resistance to environmental factors. Another key feature is the focus on low power degradation over time, which makes it easier to plan the long-term profitability of the installation.

It is a good choice for residential and commercial installations, as well as ground-mounted projects - anywhere where high production, durability, and predictability are important.

Ranking

249 panels in the segment TOPCon 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.25% 22.40% Typical 1,239
Power density 232.5 223.7 Typical 1,222
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 53.2 53.2 Typical 7,074
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 0 caution
Best for

Commercial, utility-scale and shaded-installations.

Notes from the database
  • Efficiency of 23.2% is 0.9pp above the TOPCon 650-700W median (22.4%)
  • 232.5 W/m² power density - 8.8 W/m² more than TOPCon 650-700W median (223.7 W/m²), more power per roof area
  • At -0.29%/°C, hot weather performance is typical for TOPCon 650-700W panels
  • 80% bifaciality enables rear-side power generation, boosting yield by 4-12% on reflective surfaces
  • In the top 9% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 650 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.25 % Typical Segment median 22.40%
Vmpp · Impp 47.87 V · 13.58 A Operating point at max power
Voc · Isc 57.24 V · 14.31 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2465×1134×30 mm · 2.80 m² of roof
Weight 34.6 kg Typical Typical · median 34.6 kg
Cells 156 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.046 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 568 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Seraphim in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 650 Wp appear here. The rest cover the whole series.

Additional Value from Linear Warranty Additional Value from Linear Warranty Whole series I-V curves at varying irradiance, cells temp. = 25°C I-V curves at varying irradiance, cells temp. = 25°C Whole series I-V curves at varying cell temperature, incident irradiance = 1000 W/m² I-V curves at varying cell temperature, incident irradiance = 1000 W/m² Whole series

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
-0.290 %/°C against a segment median of -0.290
-
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
Seraphim SRP-650-BTZ-BG 650 W 23.25% -0.290 34.6 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +1.9 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +30 W, lighter, +1.9 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +1.8 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +1.8 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +50 W, cooler, +1.8 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +45 W, cooler, +1.6 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +1.6 pp
SRP-580-BMZ-HV 580 W 20.75% -0.340 29.5 kg -70 W, lighter, -2.5 pp
SRP-585-BMZ-BG 585 W 20.93% -0.340 34.6 kg -65 W, hotter, -2.3 pp
SRP-590-BMZ-BG 590 W 21.11% -0.340 34.6 kg -60 W, hotter, -2.1 pp
SRP-595-BMZ-HV 595 W 21.29% -0.340 29.5 kg -55 W, lighter, -2.0 pp
SRP-600-BMZ-HV 600 W 21.46% -0.340 29.5 kg Hotter, lighter, -1.8 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg Cooler, lighter, +1.6 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg Cooler, lighter, +1.6 pp

Found 616 panels of the same or similar size to this one, within ±10 mm. See them here Found 616 panels of the same or similar size to this one, within ±25 mm. See them here Found 616 panels of the same or similar size to this one, within ±50 mm. See them here Found 1813 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the Seraphim Sable series come with?
The Sable series includes a 15-year product warranty covering defects in materials and workmanship, plus a 30-year power output warranty. After 30 years, Seraphim guarantees at least 84.95% of the rated power. Thanks to TOPCon technology, annual degradation sits at approximately 0.4%, making long-term yield forecasting straightforward for system owners and investors.
What is TOPCon technology and why choose Seraphim Sable over older PERC panels?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell design where a thin silicon oxide layer reduces carrier recombination losses. Sable panels deliver higher conversion efficiency than standard PERC cells and a lower temperature coefficient of around -0.29%/°C, meaning smaller power losses on hot days. LID-related initial degradation is below 1%, stabilizing at roughly 0.4% per year thereafter.
Do Seraphim Sable panels perform well in overcast conditions and low irradiance, typical of Northern European climates?
Yes. The multi-busbar architecture shortens current-flow paths between cells and reduces resistive losses at low irradiance. N-type TOPCon cells also show high sensitivity to diffuse light. This translates into measurably better energy yield during cloudy mornings and afternoons, which account for a significant share of production hours in Central and Northern Europe.
What is the maximum power output of the Seraphim Sable module, and will a 720 Wp panel fit on a typical residential roof?
The top variant of the Sable series reaches 720 Wp using 210 mm cells with module efficiency exceeding 23%. This is a large-format panel primarily suited for ground-mount and commercial rooftop installations. For residential projects, Seraphim offers smaller variants within the same Sable series compatible with standard racking systems — confirm the available model with your installer.
Is Seraphim a reliable manufacturer? Where are they based and are they Tier 1?
Seraphim Solar is a Chinese PV manufacturer headquartered in Nantong, operating since 2011 and holding Tier 1 status as recognized by independent rating agencies including BNEF. Tier 1 classification indicates bank-financeable track record and consistent manufacturing capacity, which significantly lowers long-term warranty risk for the system owner.
What temperature range can Seraphim Sable panels handle, and do they work well in winter?
Sable panels are certified for an operating temperature range of -40°C to +85°C, so cold winters pose no risk whatsoever. In fact, N-type TOPCon cells have a lower temperature coefficient than PERC technology, meaning cold but sunny winter days can be especially productive — low ambient temperature reduces thermal losses and boosts output relative to rated STC conditions.
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