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Jinko Solar Brand review

JS305M

305 Wp PERC
ComparePV verdict

Middle of its segment, weak in heat

Rank 13,369 of 14,129
Compare panels Datasheet PDF
Power (Wp)
305
Weak · bottom 10%
Efficiency (%)
18.75
Typical · median 19.00%
Density (Wp/m²)
187.5
Typical · median 190.0
Temp (%/°C)
-0.420
Weak · bottom 7%
Weight (kg)
18.0
Typical · median 19.0 kg
Warranty (yrs)
25
Typical · median 25 yrs

The Jinko Solar 60+ Series monocrystalline photovoltaic modules are designed to maximize energy yield from a typical roof format, without compromising on durability. The use of monocrystalline cells (often with PERC technology) and internal loss-reducing solutions ensures that the modules perform well not only in ideal sunlight, but also in less ideal conditions and with varying temperatures. The half-cut cells enhance tolerance to partial shading and help minimize hot-spot losses, while the multi-busbar technology increases connection reliability and stability over time. Furthermore, the modules are designed with a focus on PID resistance and resistance to harsh environmental conditions (e.g., coastal or agricultural areas), which realistically reduces the risk of performance degradation over the long term. This makes them an ideal choice for residential and commercial installations, where consistent yield, reliability, and easy integration with popular mounting systems are key.

Ranking

291 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 18.75% 19.00% Typical 13,140
Power density 187.5 190.0 Typical 13,119
Temperature coefficient -0.420 -0.360 Weak · bottom 7% 13,920
Weight per kWp 59.0 60.3 Typical 12,070
Performance warranty 25 yrs 25 yrs Typical 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

4 positive · 4 caution
Best for

Residential, commercial and shaded-installations.

Not ideal for

Hot climates.

Watch-outs
-0.420 %/°C temperature coefficient

Bottom 7% of the PERC 300-350 W segment, against a median of -0.360. Ranked 13,920th in the whole database.

What owners get
Manufacturer BNEF #1 Bankability

JinkoSolar is the only PV module manufacturer with 100% bankability in the Bloomberg NEF ranking (confirmed 2024/2025, 10th consecutive year) and shipped 86 GW in 2025. This translates into reliable product warranty coverage and access to technical support years after purchase.

PERC + half-cut + multi busbar

The combination of monocrystalline PERC cells with a half-cut architecture reduces resistive losses by approximately 50% compared to full cells, while multi busbar (MBB) technology lowers the risk of microcracks and hot-spots. The result is improved tolerance to partial shading and higher reliability over years of operation.

18.75-19.36% efficiency vs. Solaria

The series reaches up to 19.36% module efficiency, outperforming peer comparable Solaria PowerXT 54L (15.87%) by 3.49 percentage points. For a typical 10-module rooftop installation on roughly 16 m², this gap can translate to approximately 10-12% higher annual energy yield versus Solaria modules.

25-year linear power warranty

The manufacturer provides a 25-year linear performance warranty - matching the current Tier-1 market standard. A linear (non-stepped) degradation guarantee simplifies long-term LCOE forecasting and is well-regarded by project finance lenders.

Trade-offs
Discontinued series (end of production 2020)

The 60+ Series went out of production around 2020. New units are unavailable through regular distribution channels, and the availability of matching replacement modules for system expansion, spare parts, and technical documentation required by insurers and project finance banks is severely limited - a material risk for assets with a 20-25 year investment horizon.

Efficiency well below Solar-Fabrik S5 Halfcut

Peer comparable Solar-Fabrik Mono S5 Halfcut achieves 21.69% module efficiency at a similar power output (315 Wp), outperforming the Jinko 60+ Series by approximately 2.33-2.94 percentage points. On space-constrained rooftops this efficiency gap meaningfully limits the maximum installable capacity.

Product warranty of only 10 years

Current Tier-1 modules (JA Solar, Trina, LONGi) routinely offer 12-15 year product warranties. The 10-year product warranty of the 60+ Series falls below current market expectations - a concern compounded by the series being discontinued, which increases the practical difficulty of filing warranty claims.

Notes from the database
  • Module efficiency of 18.8% is 0.7pp below average for PERC 0-400W panels (median: 19.4%)
  • At 187.5 W/m², this panel generates 6.7 W/m² less per unit area than PERC 0-400W median (194.2 W/m²)
  • Temperature coefficient of -0.42%/°C is 0.06pp worse than PERC 0-400W median (-0.36%/°C) - higher losses in summer heat
  • Weight of 18.0 kg (2.5 kg below PERC 0-400W median of 20.5 kg) allows easier transport and roof mounting
  • In the top 93% for efficiency among all PERC panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 305 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 18.75 % Typical Segment median 19.00%
Vmpp · Impp 32.97 V · 9.25 A Operating point at max power
Voc · Isc 39.05 V · 9.50 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1640×992×35 mm · 1.63 m² of roof
Weight 18.0 kg Typical Typical · median 19.0 kg
Coefficient Pmax -0.420 %/°C Weak bottom 7% of its segment
Coefficient Voc · Isc -0.320 · 0.060 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 10 years Hardware defects only
Performance warranty 25 years Typical median 25 yrs · median 25 yrs
End-of-warranty output 80.2 % Equals 233 W guaranteed

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
-0.420 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Jinko Solar JS305M 305 W 18.75% -0.420 18.0 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.6 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +4.6 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg Cooler, +4.6 pp, +5 yr warranty
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.4 pp
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, lighter, +4.4 pp
ZEUS 3.2 285WP FullBlack 285 W 23.14% -0.260 15.6 kg Cooler, +4.4 pp, +5 yr warranty
GKA182M285W 285 W 23.00% - 10.8 kg Lighter, +4.2 pp, +5 yr warranty
GKA182M260W 260 W 23.00% - 10.8 kg Lighter, +4.2 pp, +5 yr warranty
GKA182M270W 270 W 23.00% - 10.8 kg Lighter, +4.2 pp, +5 yr warranty
JS310M 310 W 19.05% -0.420 18.0 kg +0.3 pp
JS315M 315 W 19.36% -0.420 18.0 kg +10 W, +0.6 pp
JS330M 330 W 20.30% -0.340 18.0 kg +25 W, cooler, +1.6 pp
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +3.9 pp, +15 yr warranty
LEPV 400 400 W 22.31% -0.290 20.0 kg +95 W, cooler, +3.6 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +55 W, cooler, +3.4 pp
NS-360MH-60 360 W 22.12% -0.290 17.0 kg +55 W, cooler, +3.4 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 60+ Series Monocrystalline Photovoltaic Modules series

6 answered

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

Is the Jinko Solar 60+ Series still available for purchase?
The Jinko Solar 60+ Series Monocrystalline Photovoltaic Modules has been discontinued and is no longer offered as new stock by authorized distributors. Models such as the JKM315M-60 may occasionally appear on the secondary market or in residual distributor inventory. If you need new Jinko Solar panels, consider current lineups such as the Tiger Neo or Tiger Pro series.
What warranty does the Jinko Solar 60+ Series come with?
Jinko Solar provides a 10-year product warranty covering material and workmanship defects, and a 25-year linear power warranty guaranteeing output stays above specified thresholds. Because the series is discontinued, warranty claims may require contacting Jinko Solar's service center or an authorized partner directly. Keep your purchase documents and product registration on file to simplify any future claims.
What are half-cut cells and why do they matter in the Jinko Solar 60+ Series?
Half-cut cell technology splits each silicon cell in half, reducing resistive losses and improving tolerance to partial shading. In practice, if a chimney or antenna shades part of the panel, the unshaded half continues generating power efficiently. In the 60+ Series, half-cut PERC cells combined with multi busbar interconnection reduce hotspot risk and improve long-term reliability of electrical connections.
How do Jinko Solar 60+ Series panels perform in overcast or low-light conditions?
The modules use monocrystalline PERC cells, which outperform polycrystalline cells under diffuse or low-intensity light. The PERC rear reflective layer captures photons that would otherwise pass through the cell, delivering measurable gains on cloudy days typical of Central European climates. While output is naturally lower than in full sun, the panels continue generating usable energy in overcast conditions.
What is the peak power output of the Jinko Solar 60+ Series and what installations is it suited for?
The top model in the series is rated at 315 Wp. This output level and the standard 60-cell form factor make it a natural fit for residential rooftop systems and small commercial installations using conventional racking with 1000-1200 mm rail spacing. The panels are compatible with most standard mounting systems and are manageable in terms of weight and dimensions for rooftop transport and installation.
Is the Jinko Solar 60+ Series resistant to harsh environments such as coastal or agricultural sites?
Yes, the modules were engineered with resistance to salt mist corrosion and ammonia exposure, making them suitable for coastal locations and farmland installations. Jinko Solar also built in PID resistance, which protects against accelerated cell degradation in high-humidity environments. Despite the series being discontinued, correctly installed modules should maintain their rated performance over the long term under normal operating conditions.
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