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JS380M

380 Wp Monocrystalline
ComparePV verdict

Middle of its segment, weak in heat

Rank 12,853 of 14,005
Compare panels Datasheet PDF
Power (Wp)
380
Weak · bottom 18%
Efficiency (%)
19.18
Weak · bottom 12%
Density (Wp/m²)
191.6
Weak · bottom 12%
Temp (%/°C)
-0.370
Weak · bottom 7%
Weight (kg)
23.5
Weak · 1.5 kg above median
Warranty (yrs)
25
Weak · bottom 20%

JS Solar 72 SERIES photovoltaic panels are advanced modules based on 72 silicon cells, designed with maximizing yields from limited mounting space in mind. Thanks to the use of monocrystalline PERC and Half-Cut cell technology, this series effectively minimizes energy losses resulting from partial shading and the hotspot phenomenon. It is an ideal solution for investors seeking high efficiency in utility-scale installations and large commercial facilities, where a fast return on investment is crucial. The robust frame construction provides exceptional resistance to mechanical loads caused by snow and wind, which guarantees long-term system operation stability even in harsh weather conditions. They are distinguished from the competition by precise quality control that prevents potential-induced degradation (PID) and an optimal price-to-power ratio. By choosing JS Solar 72 SERIES, you gain a reduction in LCOE costs and the certainty that your solar power plant will generate stable profits for decades. It is a professional choice for photovoltaic farms, combining modern materials engineering with real durability, eliminating the low-efficiency problems of standard modules in full sun.

Ranking

5,932 panels in the 280-480 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 19.18% 21.22% Weak · bottom 12% 12,885
Power density 191.6 212.0 Weak · bottom 12% 12,860
Temperature coefficient -0.370 -0.310 Weak · bottom 7% 13,081
Weight per kWp 61.8 53.4 Weak · bottom 14% 12,705
Performance warranty 25 yrs 30 yrs Weak · bottom 20% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 7 caution
Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Watch-outs
-0.370 %/°C temperature coefficient

Bottom 7% of the 280-480 W band, against a median of -0.310. Ranked 13,081st in the whole database.

19.18% module efficiency

Bottom 12% of the 280-480 W band, against a median of 21.22%.

191.6 watts per square metre

Bottom 12% of the 280-480 W band, against a median of 212.0.

What owners get
Half-Cut PERC – shading tolerance

Half-Cut technology splits cells into 144 elements, halving operating current and reducing resistive losses by approx. 75%. This delivers measurably higher energy yield under partial shading and a lower hot-spot risk — critical for utility-scale installations with non-uniform irradiance.

25-year linear power warranty

The manufacturer guarantees linear power retention over 25 years, meeting the minimum threshold required by project finance lenders for commercial PV assets. This warranty limits the investor's exposure to unforeseeable energy production losses over the long operational horizon.

PID resistance for high-voltage systems

Built-in PID (potential-induced degradation) resistance is essential for systems operating above 1,000V DC — standard in commercial rooftop and utility-scale PV plants — where unprotected modules can suffer several percent of annual power loss.

72-cell format reduces BoS costs

The larger 72-cell (144 half-cut) module means fewer modules per MW of installed capacity, directly lowering Balance of System (BoS) costs: fewer cables, MC4 connectors, mounting clamps, and installation labor-hours per MW compared to standard 60-cell modules.

Robust frame for harsh environments

The aluminum alloy frame is engineered for high mechanical loads (snow load, wind load), ensuring structural integrity on industrial rooftops and ground-mount farms exposed to heavy snowfall or high winds, minimizing the risk of mechanical damage throughout the system's lifetime.

Trade-offs
Not on BNEF Tier-1 Bankable list

JS Solar does not appear on the BNEF Tier-1 bankable manufacturers list (Q1 2026). For projects seeking non-recourse project financing, absence from this list can be a blocking criterion for lenders or materially increase the cost of debt, limiting the series' suitability for large utility-scale farms requiring external financing.

Lowest efficiency among peer comparables

Module efficiency of 19.18–19.43% is the lowest across all peer comparables at the same 385 Wp peak power: Solarwatt Panel vision GM 3.0 pure (20.7%), JA Solar JAM60D20 (20.6%), and MY Solar M2 series (19.84%). The gap vs. JA Solar is approx. 1.2–1.5 percentage points, directly reducing energy yield per m² of available roof or land area.

Legacy P-type PERC technology

P-type PERC cells exhibit LID (light-induced degradation) losses of 1–3% in the first hours of field exposure and a higher temperature coefficient (typically ~-0.37%/°C) compared to modern N-type TOPCon (~-0.30%/°C) or HJT (~-0.24%/°C). The premium PV market in 2025–2026 is transitioning to N-type as the new standard, leaving PERC increasingly behind the technology curve.

Short 10-year product warranty

The product warranty covers only 10 years, compared to 12 years from JA Solar (a direct peer comparable) and 30 years from Solarwatt Panel vision GM 3.0 pure. The shorter coverage increases the investor's exposure to out-of-warranty repair and replacement costs, particularly relevant for installations with a planned 25-year operational life.

Notes from the database
  • Module efficiency of 19.2% is 2.6pp below average for database panels (median: 21.8%)
  • Power density of 191.6 W/m² is 26.5 W/m² below database median (218.1 W/m²) - needs more roof space
  • -0.37%/°C temperature coefficient - 0.07pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • At 23.5 kg, this panel is 3.0 kg lighter than database median (26.5 kg) - easier handling during installation
  • In the top 92% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 380 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.18 % Weak Segment median 21.22%
Vmpp · Impp 39.10 V · 9.72 A Operating point at max power
Voc · Isc 46.74 V · 10.18 A Sizes the string length
Dimensions 1979×1002×35 mm · 1.98 m² of roof
Weight 23.5 kg Weak Weak · 1.5 kg above median
Cells 72 Monocrystalline
Coefficient Pmax -0.370 %/°C Weak bottom 7% of its segment
Coefficient Voc · Isc -0.340 · 0.060 %/°C
NOCT 42 °C At 800 W/m², 20 °C ambient
Product warranty 10 years Hardware defects only
Performance warranty 25 years Weak bottom 20% · median 30 yrs
End-of-warranty output 80.2 % Equals 291 W guaranteed
Degradation 3.00 → 0.70 % 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
-0.370 %/°C against a segment median of -0.310
-

Alternatives

All JS Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
JS Solar JS380M 380 W 19.18% -0.370 23.5 kg You are here
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.0 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.0 pp
GKA210M340W 340 W 23.00% - 16.2 kg Lighter, +3.8 pp, +5 yr warranty
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +3.8 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +3.8 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +3.8 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +3.8 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +3.8 pp, +5 yr warranty
SPR-MAX3-430-R 430 W 22.70% -0.270 21.2 kg Cooler, +3.5 pp, +15 yr warranty
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +3.4 pp, +15 yr warranty
JS385M 385 W 19.43% -0.370 23.5 kg +0.2 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg Cooler, +4.8 pp, +15 yr warranty
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg Cooler, +4.5 pp, +15 yr warranty
SPR-MAX7-465 465 W 23.50% -0.270 21.1 kg Cooler, +4.3 pp, +15 yr warranty
LEPV 132 ULTRA PREMIUM BLACK 440Wp (LEPV 440) 440 W 22.37% -0.290 21.0 kg +60 W, cooler, +3.2 pp
NS-420MH-80 420 W 22.28% -0.290 20.0 kg +40 W, cooler, +3.1 pp

Found 86 panels of the same or similar size to this one, within ±10 mm. See them here Found 304 panels of the same or similar size to this one, within ±25 mm. See them here Found 439 panels of the same or similar size to this one, within ±50 mm. See them here Found 566 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What cell technology is used in the JS Solar 72 SERIES, and what does it mean in practice?
The JS Solar 72 SERIES uses monocrystalline PERC cells in a half-cut configuration, meaning each cell is divided in two, reducing internal resistance and thermal losses. As a result, the module reaches up to 385 Wp and is less susceptible to losses when part of the panel is shaded. For investors, this translates to measurably higher energy yields per square meter compared to older full-cell standard modules.
What warranty comes with the JS Solar 72 SERIES panels?
JS Solar 72 SERIES panels come with a 10-year product warranty covering material and workmanship defects, plus a 25-year linear power output warranty. This means the manufacturer commits to maintaining a specified performance level for a quarter century. Keep in mind that JS Solar is not a Tier 1 manufacturer, so institutional buyers should verify the supplier's current financial standing before committing to large orders.
How do JS Solar 72 SERIES panels handle partial shading, for example from a chimney or an adjacent row?
Yes, the half-cut cell technology in the 72 SERIES significantly reduces the impact of partial shading. Splitting each cell in half means only a portion of the module loses efficiency when a chimney or adjacent row casts a shadow. This also minimizes the risk of hotspots that can permanently damage cells. Additional protection comes from certified resistance to PID (potential-induced degradation).
What types of installations are JS Solar 72 SERIES panels best suited for?
The 72 SERIES is designed primarily for large-scale installations: solar farms, large commercial buildings, industrial halls, and warehouse facilities. High unit power up to 385 Wp and a robust frame resistant to mechanical loads make it the optimal choice where rapid ROI and low LCOE matter most. For small residential prosumer systems of 3-5 kW, smaller-format modules are generally more practical.
Can JS Solar 72 SERIES panels withstand heavy snow and wind loads in harsh climates?
Yes, the JS Solar 72 SERIES frame is engineered to withstand significant mechanical loads from snow accumulation and strong wind gusts. The reinforced aluminum profile maintains structural integrity even in harsh weather conditions, ensuring stable power generation throughout the module's operating lifetime. Exact allowable load values in kPa should be confirmed in the series datasheet before designing the mounting structure.
Is JS Solar a Tier 1 manufacturer, and does it matter when purchasing 72 SERIES panels?
JS Solar is not classified as a Tier 1 manufacturer under BloombergNEF rankings, meaning the company does not meet the criterion of having projects financed by at least six banks on a non-recourse basis. For private investors and smaller solar farms, this may not be a deciding factor. However, for bankable projects or those co-financed with public funds, Tier 1 status is often formally required by financing institutions and should be verified before signing any agreements.
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