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Jinko Solar JKM625N-66HL4M-BDV

JKM625N-66HL4M-BDV

625 Wp N-type Bifacial 80%
ComparePV verdict

Solid all-round for its segment

Rank 2,239 of 14,005
Compare panels Datasheet PDF
Power (Wp)
625
Typical for its class
Efficiency (%)
23.14
Typical · median 22.77%
Density (Wp/m²)
231.4
Typical · median 227.7
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
32.4
Typical · median 32.5 kg
Warranty (yrs)
30
Typical · median 30 yrs

Jinko Solar's EAGLE® G7B 615-640W N-type bifacial series was designed for maximum energy yield where every square meter counts and for stable operation year after year. The key advantage is the N-type TOPCon cell technology - less sensitive to typical degradation mechanisms, helping maintain high production over the long term, especially under intensive operation. The use of bifacial construction truly increases yield by enabling power generation from both sides - a significant benefit on light-colored roofs, membranes, gravel, and ground-mounted installations.

In practice, this series addresses investors' concerns by minimizing performance degradation over time and increasing production in hot conditions thanks to its favorable temperature coefficient. The modules are built with dual-glass construction, enhancing moisture resistance and durability in challenging environments. This makes them an excellent choice for utility-scale PV farms, carports, and large commercial rooftops, where high reliability and a long operational lifespan are key advantages.

Ranking

359 panels in the segment N-type 600-650 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.14% 22.77% Typical 1,509
Power density 231.4 227.7 Typical 1,513
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 51.8 52.7 Typical 5,218
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 2 caution
Best for

Commercial, utility-scale and hot-climate.

What owners get
Highest efficiency in segment

Peak efficiency of 23.69% (640 Wp) clearly outperforms direct peers: REC Alpha Pro M at 22.5%, Suntech Ultra V Pro at 22.9%, MY Solar HJT at 22.61%. The smaller footprint required for the same power output directly reduces BoS costs in space-constrained installations.

N-type TOPCon – low degradation & better hot-weather output

N-type TOPCon cells exhibit zero LID (Light Induced Degradation) and significantly lower LeTID compared to P-type PERC. The power temperature coefficient of -0.29%/°C translates to ~11.6% power loss at a module temperature of 65°C — roughly 2.4 percentage points less than typical PERC (-0.35%/°C), delivering measurably higher summer energy yield.

Bifacial 80% + dual glass – higher yield & durability

The ~80% bifaciality factor enables rear-side generation, with 5–15% additional annual energy on high-albedo surfaces (white roofing membranes, gravel, concrete). The dual-glass construction improves resistance to moisture ingress, ammonia, and thermomechanical stress — particularly relevant for ground-mount PV farms and carports.

30-year linear power warranty (>87.4% guaranteed)

Jinko guarantees at least 87.4% of rated power after 30 years of operation under a linear power warranty — one of the longest and most robust degradation schedules in the high-wattage module class, surpassing the standard 25-year warranties offered by many competing manufacturers.

Jinko Solar #1 bankability – BNEF 2025

The only manufacturer in the world rated 100% bankable by Bloomberg NEF in the 2025 bankability survey (top ranking for the 10th consecutive year). With 86 GW shipped in 2025, Jinko is the global market leader — translating to the lowest manufacturer financial risk and the most straightforward project financing access for banks and infrastructure funds.

Trade-offs
Higher temperature coefficient than HJT

The REC Alpha Pro M at the same power class (640 Wp) delivers a temperature coefficient of -0.24%/°C via HJT technology, meaning only 9.6% power loss at 40°C above STC versus 11.6% for the G7B. In climates with many extreme-heat days (Southern Europe, MENA), this gap can translate to approximately 1–2% lower annual energy yield compared to best-in-class HJT modules.

Heavier dual-glass module – rooftop load concerns

The glass-glass (dual glass) construction in the 66-cell format increases module weight to approximately 32–35 kg, compared to ~25–27 kg for equivalent glass-backsheet modules. This may require structural reinforcement analysis or roof strengthening on older residential buildings prior to installation.

Notes from the database
  • At 23.1% efficiency, this panel is on par with typical N-type 600-650W modules
  • Power density of 231.4 W/m² packs 3.7 W/m² more into the same footprint vs N-type 600-650W median (227.7 W/m²)
  • At -0.29%/°C, hot weather performance is typical for N-type 600-650W panels
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof
  • In the top 11% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 625 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.14 % Typical Segment median 22.77%
Vmpp · Impp 40.88 V · 15.29 A Operating point at max power
Voc · Isc 49.28 V · 16.14 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 32.4 kg Typical Typical · median 32.5 kg
Cells 132 · N-type 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 · 0.045 %/°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 87.4 % Equals 546 W guaranteed
Degradation 1.00 → 0.40 % 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
-0.290 %/°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
Jinko Solar JKM625N-66HL4M-BDV 625 W 23.14% -0.290 32.4 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Cooler, lighter, +2.1 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +50 W, lighter, +1.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Cooler, lighter, +1.9 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +45 W, lighter, +1.7 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +45 W, lighter, +1.7 pp
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, lighter, +1.7 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +45 W, cooler, +1.7 pp
JKM605-630N-66HL4M-BDV-F3-EN (605W column) 605 W 22.40% -0.290 32.4 kg -20 W, -0.7 pp
JKM605-630N-66HL4M-BDV-F3-EN (610W column) 610 W 22.58% -0.290 32.4 kg -15 W, -0.6 pp
JKM605-630N-66HL4M-BDV-F3-EN (615W column) 615 W 22.77% -0.290 32.4 kg -10 W, -0.4 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +55 W, lighter, +2.1 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +75 W, cooler, +1.9 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +70 W, cooler, +1.8 pp

Found 1119 panels of the same or similar size to this one, within ±10 mm. See them here Found 1125 panels of the same or similar size to this one, within ±25 mm. See them here Found 1236 panels of the same or similar size to this one, within ±50 mm. See them here Found 1917 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the warranty on Jinko Solar EAGLE G7B 615-640W panels?
The EAGLE G7B series comes with a 12-year product warranty covering manufacturing defects and a 30-year linear power warranty. This is among the longer power warranties available on the market, meaning the manufacturer guarantees a defined performance level for three decades. Jinko Solar is a Tier 1 manufacturer, which meaningfully increases the practical enforceability of warranty claims.
Do N-type TOPCon cells in the EAGLE G7B really degrade slower than older PERC panels?
Yes. N-type TOPCon technology exhibits lower LID and LeTID degradation rates than P-type PERC cells. In practice, after several years of intensive operation, an EAGLE G7B module should retain a noticeably higher percentage of its rated power compared to a same-generation PERC panel. This is especially valuable in installations with a long payback horizon, such as utility-scale PV farms or large commercial rooftops.
How much extra energy does the EAGLE G7B bifacial design actually produce?
The EAGLE G7B modules have a bifaciality factor of approximately 80%, meaning the rear cell surface can generate up to 80% of the front-side power under equivalent irradiance. Real-world yield gain depends on ground albedo and tilt angle, but on light-colored gravel, white roofing membrane, or grassy terrain, you can typically expect 5–15% more annual energy compared to a monofacial module with the same nameplate wattage.
Are Jinko EAGLE G7B 640W panels suitable for a residential sloped roof, or are they mainly a utility-scale product?
The EAGLE G7B series is primarily designed for commercial and ground-mount installations — dual-glass modules rated up to 640W are larger and heavier than typical residential panels. They work excellently on large sloped roofs such as warehouses or industrial halls. For a standard single-family home, it is worth evaluating the roof's structural load capacity and on-site handling logistics beforehand, as the module's physical dimensions can present a challenge during installation.
How does the EAGLE G7B series perform in high temperatures — do hot summers significantly cut output?
The power temperature coefficient for N-type TOPCon cells in the EAGLE G7B series is approximately -0.29%/°C. This means that when a module heats up to 65°C (40°C above STC), power loss is around 11.6%, while older PERC panels with a coefficient of -0.35%/°C lose about 14% under the same conditions. In sunny, hot climates this difference translates into measurably higher energy yield during summer months.
Do Jinko EAGLE G7B dual-glass modules require special racking systems?
Yes, and this should be factored in at the design stage. Dual-glass modules are heavier than standard backsheet panels and require a mounting structure rated for the higher load. They also lack the frame-mounted grounding holes typical of single-glass modules, so clamp and rail selection must follow the manufacturer's mounting specifications. Most reputable racking manufacturers offer solutions certified for dual-glass modules.
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