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ASM-M12-132-635

635 Wp PERC
ComparePV verdict

Middle of its segment, modest efficiency

Rank 4,963 of 14,005
Compare panels Datasheet PDF
Power (Wp)
635
Strong · top 19%
Efficiency (%)
20.39
Weak · bottom 1%
Density (Wp/m²)
203.9
Weak · bottom 1%
Temp (%/°C)
-0.340
Typical · median -0.340
Weight (kg)
33.6
Typical · median 34.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

Adani Solar ETERNAL PRIDE series panels bring a new quality to large-scale projects, utilizing bifacial technology, which allows for additional energy yield from the rear side of the module by using reflected light. Thanks to the use of Mono-PERC cells in MBB architecture, this design effectively minimizes internal losses and optimizes current flow, which is crucial during operation in high temperatures and low sunlight conditions. This series solves the problem of long-term power loss through high resistance to PID degradation and the LID phenomenon, ensuring stable energy yields for decades. Exceptional resistance to extreme snow and wind loads makes these components dedicated primarily to demanding photovoltaic farms and large industrial installations, where maximizing profitability from every square meter of area matters. What distinguishes ETERNAL PRIDE from standard competitive solutions is exceptional mechanical stability combined with rigorous cell quality control, guaranteeing reliability in harsh environmental conditions. By choosing this series, investors receive a product optimized for the lowest levelized cost of energy (LCOE), which effectively combines innovative design with a real increase in the efficiency of ground-mounted and flat-roof systems. An excellent temperature coefficient ensures that these modules maintain efficiency where other panels lose their performance.

Ranking

217 panels in the segment PERC 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.39% 21.38% Weak · bottom 1% 11,683
Power density 203.9 213.8 Weak · bottom 1% 11,623
Temperature coefficient -0.340 -0.340 Typical 8,778
Weight per kWp 52.9 55.7 Typical 6,627
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 6 caution
Best for

Utility-scale, commercial and hot-climate.

Not ideal for

Tight roof space and roofs where every square metre has to count.

Watch-outs
20.39% module efficiency

Bottom 1% of the PERC 600-650 W segment, against a median of 21.38%. Ranked 11,683rd in the whole database.

203.9 watts per square metre

Bottom 1% of the PERC 600-650 W segment, against a median of 213.8. Ranked 11,623rd in the whole database.

What owners get
Favorable temperature coefficient

The Pmax value of -0.34%/°C places the series above the average for PERC technology (-typically -0.37 to -0.40%/°C), resulting in a higher actual yield during hot summer months and in tropical climates – which is significant for large ground-mounted installations.

30-year linear power warranty

The manufacturer offers a 30-year linear performance warranty, which is the standard for premium-segment photovoltaic panels and exceeds the typical 25-year warranty offered by many Tier-1 players such as JA Solar and Trina Solar, for comparable production years.

MBB architecture + half-cut

The use of Multi-Busbar (MBB) technology in combination with half-cut cells reduces internal resistance and minimizes the impact of partial shading on the overall power output of the module – a key advantage in ground-mounted solar farms with complex environments.

Tier-1 bankability rating (according to BNEF)

Adani Solar is listed on Bloomberg NEF's Tier-1 list, which confirms the financial viability of the manufacturer – a key requirement when securing financing from independent commercial banks and a standard clause in most Power Purchase Agreements (PPAs) for installations exceeding 10 MW.

Trade-offs
The product line has been discontinued.

ETERNAL PRIDE has been discontinued (production stopped, initial release in 2021). This means limited availability of replacement parts, no service support for new orders, and potential difficulties in expanding the system in the future.

Performance significantly below that of market competitors

The efficiency of these modules is only 20.23–20.87%, while direct competitors in the same power range (630–650 W) achieve: BYD Auro N — 23.25%, Astronergy ASTRO N5 — 23.30%, Jinko Tiger Neo — 24.06%. This means that approximately 15% more modules are needed to achieve the same power output, which increases construction and ground costs.

PERC Technology in the Market

In 2024, TOPCon technology surpassed PERC technology in terms of global production capacity, achieving approximately 66% of the total production capacity. All three comparable competitors (BYD, Astronergy, and Jinko) operate using N-type TOPCon cells, which are characterized by lower LID degradation and better bifaciality (80–85% vs 70% for PERC). The ETERNAL PRIDE series is based on the older P-type PERC platform.

Lack of bifaciality

The version in question is a monofacial module (is_bifacial: false), while all three comparable competing series offer a bifacial option at the same peak power. In ground-mounted installations with a clear substrate (sand, gravel, light concrete), bifaciality can generate an additional 5–15% of energy yield.

Notes from the database
  • Module efficiency of 20.4% is 1.0pp below average for PERC 600-650W panels (median: 21.4%)
  • Power density of 203.9 W/m² is 9.9 W/m² below PERC 600-650W median (213.8 W/m²) - needs more roof space
  • Temperature coefficient of -0.34%/°C matches the PERC 600-650W median
  • Ranked #11683 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 635 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.39 % Weak Segment median 21.38%
Vmpp · Impp 36.82 V · 17.25 A Operating point at max power
Voc · Isc 43.08 V · 18.63 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2390×1303×35 mm · 3.11 m² of roof
Weight 33.6 kg Typical Typical · median 34.0 kg
Cells 132 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.340 of its segment
Coefficient Voc · Isc -0.250 · 0.041 %/°C
NOCT 44 °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 82.0 % Equals 521 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
Adani Solar ASM-M12-132-635 635 W 20.39% -0.340 33.6 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +4.8 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg Cooler, lighter, +4.8 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg Cooler, lighter, +4.6 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +4.6 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg Cooler, lighter, +4.4 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg Cooler, lighter, +4.4 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +4.4 pp
ASM-M12-132-630 630 W 20.23% -0.340 33.6 kg Very close match
ASM-M12-132-640 640 W 20.55% -0.340 33.6 kg Very close match
ASM-M12-132-645 645 W 20.71% -0.340 33.6 kg +10 W, +0.3 pp
ASM-M12-132-650 650 W 20.87% -0.340 33.6 kg +15 W, +0.5 pp
AIKO-A805-GRH78Dw 805 W 25.10% -0.260 39.8 kg +170 W, cooler, +4.7 pp
AIKO-A800-GRH78Dw 800 W 24.90% -0.260 39.8 kg +165 W, cooler, +4.5 pp
AIKO-A795-GRH78Dw 795 W 24.80% -0.260 39.8 kg +160 W, cooler, +4.4 pp
AIKO-A790-GRH78Dw 790 W 24.60% -0.260 39.8 kg +155 W, cooler, +4.2 pp
TSM-NEG21C.20Q-760 760 W 24.50% -0.260 38.3 kg +125 W, cooler, +4.1 pp

Found 1400 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
Are Adani Solar ETERNAL PRIDE Series panels still available for purchase?
The ETERNAL PRIDE series has been discontinued by Adani Solar and is no longer actively available through regular distribution channels. If you require modules from this manufacturer with comparable specifications, it is worth consulting your supplier about current replacement options from newer Adani Solar product lines, or checking for remaining warehouse stock. Before purchasing any residual inventory, verify that the panels are new and have been stored in accordance with the manufacturer's requirements, as improper storage conditions may affect warranty validity.
What is the warranty coverage for Adani Solar ETERNAL PRIDE Series panels?
The manufacturer provides a 12-year product warranty covering physical defects and material faults, along with a 30-year linear power output warranty. Under the linear degradation schedule, power output may not decline by more than 2% in the first year of operation, followed by a maximum annual degradation rate of 0.55% in subsequent years. This means that after 30 years of service, the module is guaranteed to retain at least 84.8% of its original rated power output. This represents one of the more rigorous degradation schedules available in the utility-scale module market.
What is the Mono-PERC MBB technology used in ETERNAL PRIDE panels and what practical advantages does it offer?
Mono-PERC (Passivated Emitter Rear Contact) is a cell technology that improves light-to-electricity conversion efficiency by applying a passivation layer to the rear surface of the cell, reducing recombination losses. MBB (Multi Busbar) replaces a few wide busbars with a greater number of narrower ones, shortening the current path within each cell and reducing resistive losses. As a result, ETERNAL PRIDE panels achieve module efficiencies of 20.23–20.87% and a low temperature coefficient of -0.34%/°C, translating into higher energy yields on hot, high-irradiance days compared to older-generation PERC designs.
Are the ETERNAL PRIDE 650W panels suitable for large-scale solar farms and industrial installations?
Yes, the ETERNAL PRIDE 650W series was designed specifically for utility-scale and industrial applications. The module measures 2390 × 1303 × 35 mm, weighs 33.6 kg, and is rated to withstand a front-side mechanical load of up to 5400 Pa and a rear-side load of up to 2400 Pa, meeting the structural requirements for sites exposed to high wind speeds and heavy snow accumulation. The high unit power output of 650 Wp reduces the total number of modules required and lowers BoS cabling costs, thereby improving the overall LCOE of the entire plant.
How do Adani Solar ETERNAL PRIDE panels perform at high operating temperatures on hot days?
The temperature coefficient of maximum power output (Pmax) is -0.34%/°C, meaning that for every degree Celsius above 25°C (STC), the module loses 0.34% of its rated power. This figure is better than that of standard older-generation PERC panels, which typically range from -0.37 to -0.40%/°C. At a cell operating temperature of, for example, 65°C, the power loss amounts to approximately 13.6%, compared to over 15% in lower-performing modules — a difference that results in measurably higher energy yields during hot, sunny months.
Are ETERNAL PRIDE panels monofacial or bifacial, and do they feature a glass rear surface?
The ETERNAL PRIDE series in the ASM-M12-132 configuration is a monofacial module equipped with a polymer backsheet rather than a glass rear surface, generating electricity exclusively from the front side. Adani Solar also offered a bifacial glass-glass (G2G) variant under the ELAN PRIDE series, which captures additional energy from reflected albedo light on the rear side. Choosing the ETERNAL PRIDE in its monofacial configuration provides lower weight and simplified installation, but foregoes the additional energy yield available from a bifacial design.
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