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Jinko Solar Brand review

JS330M

330 Wp PERC
ComparePV verdict

Light for its output, no clear weak spot

Rank 13,290 of 14,129
Compare panels Datasheet PDF
Power (Wp)
330
Typical for its class
Efficiency (%)
20.30
Strong · top 5%
Density (Wp/m²)
202.8
Strong · top 4%
Temp (%/°C)
-0.340
Strong · top 8%
Weight (kg)
18.0
Strong · 1.0 kg below median
Warranty (yrs)
25
Typical · median 25 yrs

The Jinko Solar JS-PERC series is designed to genuinely increase energy yield under typical operating conditions - even when the weather is variable and sunlight is lower. The modules utilize mono PERC cells, which allow them to better "collect" light and operate more stably under weaker illumination. In practice, this means higher energy production in the morning, evening, and on cloudy days, as well as improved overall system profitability without the need to add more panels.

The JS-PERC series stands out for its focus on quality: multiple electroluminescence (EL) tests help detect microcracks and reduce the risk of power loss over time. Additionally, the module design supports lower losses in partially shaded conditions, which is important on roofs with chimneys, skylights, or trees nearby.

This series is particularly suitable for individuals and businesses that want predictable yields and durability - whether in residential or commercial installations, where energy cost and reliability are key factors.

Ranking

291 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 20.30% 19.00% Strong · top 5% 11,851
Power density 202.8 190.0 Strong · top 4% 11,878
Temperature coefficient -0.340 -0.360 Strong · top 8% 8,846
Weight per kWp 54.5 60.3 Strong · top 4% 8,948
Performance warranty 25 yrs 25 yrs Typical 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

7 positive · 2 caution
Best for

Residential and commercial.

Strengths
54.5 kg per kWp

Top 4% of the PERC 300-350 W segment, against a median of 60.3. Ranked 8,948th in the whole database.

202.8 watts per square metre

Top 4% of the PERC 300-350 W segment, against a median of 190.0. Ranked 11,878th in the whole database.

20.30% module efficiency

Top 5% of the PERC 300-350 W segment, against a median of 19.00%. Ranked 11,851st in the whole database.

What owners get
BNEF Tier-1 & PVEL Top Performer

JinkoSolar has maintained BNEF Tier-1 bankability status for over 8 consecutive quarters and earned PVEL Top Performer recognition across all 7 reliability categories in the 2025 PV Module Reliability Scorecard - for the 11th year in a row. This is one of the strongest combined signals of financial and technical credibility in the market.

Up to 21.7% efficiency - above all peer comparables

Peak module efficiency of 21.7% exceeds every listed peer: Shinson S-Max (21.48%), Phono Solar Bifacial Twinplus (21.48%), and Boviet VEGA (21.3%). Within the mono PERC technology class, this positions the JS-PERC Series at the top of the segment.

Broad power range: 330-555 Wp across 9 variants

Nine variants span both residential prosumer systems and commercial or utility-scale arrays. A unified brand and PERC technology stack across the full range simplifies BoS standardization and service procurement.

Multiple in-process EL testing

Multiple electroluminescence (EL) inspections during manufacturing detect microcracks before shipment. This is above-standard QC practice in mass-production PERC, reducing the risk of early in-field power degradation.

Trade-offs
P-type PERC: higher LID degradation

P-type PERC cells exhibit LID of 1.5-3% in year one and annual degradation of ~0.6-0.8% vs ~0.4-0.5% for N-type TOPCon (PVEL 2025 dataset). Over 25 years, PERC modules retain ~82-84% of nameplate power, while N-type TOPCon retains 85-87%. The warranted floor of 83.1% at year 25 leaves a very narrow margin.

Monofacial only - no bifacial option

The JS-PERC Series is strictly monofacial (is_bifacial: false). The direct competitor Phono Solar Bifacial Twinplus (up to 555 Wp, 21.48% efficiency) adds 5-15% energy yield from reflected irradiance. On installations with high-albedo surfaces (gravel ballast, snow, white TPO membrane), this represents a real missed yield opportunity.

Notes from the database
  • 20.3% module efficiency - 0.9pp better than the PERC 0-400W median of 19.4%
  • At 202.8 W/m² power density, this panel generates 8.6 W/m² more per unit area than PERC 0-400W median (194.2 W/m²)
  • At -0.34%/°C, hot weather performance is typical for PERC 0-400W panels
  • At 18.0 kg, this panel is 2.5 kg lighter than PERC 0-400W median (20.5 kg) - easier handling during installation
  • Ranked #11851 out of 14129 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 330 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.30 % Strong Segment median 19.00%
Vmpp · Impp - · - Operating point at max power
Voc · Isc - · - Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1640×992×35 mm · 1.63 m² of roof
Weight 18.0 kg Strong Strong · 1.0 kg below median
Cells 60 · PERC Monocrystalline
Coefficient Pmax -0.340 %/°C Strong top 8% of its segment
Coefficient Voc · Isc -0.250 · 0.040 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 84.8 % Equals 271 W guaranteed
Degradation 2.00 % First year

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 -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Jinko Solar JS330M 330 W 20.30% -0.340 18.0 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.0 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.0 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg -50 W, cooler, +3.0 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +2.8 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +2.8 pp
ZEUS 3.2 285WP FullBlack 285 W 23.14% -0.260 15.6 kg Cooler, +2.8 pp, +5 yr warranty
GKA182M285W 285 W 23.00% - 10.8 kg Lighter, +2.7 pp, +5 yr warranty
GKA182M300W 300 W 23.00% - 16.2 kg -30 W, +2.7 pp, +5 yr warranty
GKA210M320W 320 W 23.00% - 16.2 kg Lighter, +2.7 pp, +5 yr warranty
JS305M 305 W 18.75% -0.420 18.0 kg -25 W, hotter, -1.6 pp
JS310M 310 W 19.05% -0.420 18.0 kg -20 W, hotter, -1.2 pp
JS315M 315 W 19.36% -0.420 18.0 kg -15 W, hotter, -0.9 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +2.3 pp, +15 yr warranty
LEPV 400 400 W 22.31% -0.290 20.0 kg +70 W, cooler, +2.0 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +30 W, cooler, +1.8 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +30 W, cooler, +1.8 pp

Found 191 panels of the same or similar size to this one, within ±10 mm. See them here Found 227 panels of the same or similar size to this one, within ±25 mm. See them here Found 394 panels of the same or similar size to this one, within ±50 mm. See them here Found 487 panels of the same or similar size to this one, within ±100 mm. See them here

About the JS-PERC SERIES series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

What is the power output warranty for Jinko Solar JS-PERC SERIES panels?
The Jinko Solar JS-PERC SERIES comes with a 25-year linear power output warranty, with annual degradation capped at 0.55%. A separate 12-year product warranty covers material and workmanship defects. These are standard Tier 1 warranty terms from Jinko Solar, confirming the manufacturer's long-term after-sales reliability.
Do Jinko Solar JS-PERC SERIES panels perform well on cloudy days and in low-light conditions?
Yes, the mono PERC cells used in the JS-PERC SERIES respond better to diffuse and low-intensity light than standard polycrystalline cells. In practice this means higher energy output in the morning, in the evening, and on overcast days. The annual energy yield from a JS-PERC SERIES system is measurably higher even in regions with variable irradiance, with no need to add extra panels.
What is PERC technology and why should I choose Jinko Solar JS-PERC SERIES?
PERC, or Passivated Emitter and Rear Cell, is a cell technology where a passivation layer on the rear surface reflects light back into the cell for a second absorption pass. The mono PERC cells in the JS-PERC SERIES achieve higher efficiency than standard monocrystalline modules and deliver better output at reduced irradiance, translating into real financial gains without increasing the installation footprint.
Is Jinko Solar JS-PERC SERIES suitable for a roof partially shaded by a chimney or trees?
The JS-PERC SERIES features a design that reduces partial shading losses, which is especially relevant on roofs with chimneys, dormers, or nearby trees. Multiple EL (electroluminescence) tests during production minimize the risk of microcracks that can amplify shading effects. For severe or persistent shading, adding power optimizers or microinverters is still advisable.
What is the maximum power of a JS-PERC SERIES panel and how many modules do I need for a home installation?
The maximum rated power of a Jinko Solar JS-PERC SERIES module is 555 Wp. For a typical residential system in the 6-10 kWp range, you would need between approximately 11 and 19 panels. The high per-panel wattage means fewer modules for the same system size, simplifying installation and reducing racking and BoS costs.
Are Jinko Solar JS-PERC SERIES panels bifacial?
No, Jinko Solar JS-PERC SERIES modules are monofacial and capture light only from the front side. They do not generate additional power from ground-reflected irradiance. This is perfectly adequate for typical rooftop installations where rear-side gain would be negligible. Bifacial configurations are generally advantageous only in ground-mount or elevated systems with highly reflective surfaces.
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