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JS330P vs JS310P 13 of 18 identical Swap Change panels

Jinko Solar JS330P vs Jinko Solar JS310P

JS330P
330 Wp 17.00 % PERC Incomplete
Open panel page Datasheet PDF
VS
JS310P
310 Wp 15.90 % PERC Incomplete
Open panel page Datasheet PDF
The verdict

JS330P leads on the differences that matter

The largest is module efficiency: 1.10 pp more efficient. 13 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See all 5 differences
How alike are they
13 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

5 of 18 parameters
Parameter JS330P JS310P Difference
Module efficiency 17.00 % 15.90 % 1.10 pp more efficient
Power density 170.1 Wp/m² 159.8 Wp/m² 10.3 Wp/m² higher
Rated power 330 Wp 310 Wp 20 W more power
Weight per kWp 71.2 kg/kWp 75.8 kg/kWp 4.6 kg/kWp lighter
Open-circuit voltage 46.45 V 45.31 V 1.14 V apart
02

What it means on a roof

Thirty years of production
A 1.0% first-year loss then 0.40% a year, assumed for both panels, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.420 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
JS330P
11,072 kWh
JS310P
10,401 kWh
Lifetime gap
671 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario JS330P JS310P
Standard test conditions 25 °C 100.0% of rated power 330 W 310 W
Cool, bright day 40 °C 93.7% of rated power 309 W 290 W
Typical summer roof 55 °C 87.4% of rated power 288 W 271 W
Hot roof 70 °C 81.1% of rated power 268 W 251 W
03

Full specification

Parameter JS330P JS310P Difference
Power and efficiency
Rated power 330 Wp 310 Wp +20 W for JS330P
Module efficiency 17.00 % 15.90 % +1.10 pp for JS330P
Power density 170.1 Wp/m² 159.8 Wp/m² +10.3 Wp/m² for JS330P
Open-circuit voltage 46.45 V 45.31 V 1.14 V apart
Voltage at max power 37.58 V 36.70 V Effectively the same
Short-circuit current 9.25 A 9.00 A Effectively the same
Current at max power 8.78 A 8.45 A Effectively the same
Temperature
Temperature coefficient -0.420 %/°C -0.420 %/°C Same
Mechanical
Dimensions 1956x992x40 mm 1956x992x40 mm Same
Module area 1.940 m² 1.940 m² Same
Weight 23.5 kg 23.5 kg Same
Weight per kWp 71.2 kg/kWp 75.8 kg/kWp -4.6 kg/kWp for JS330P
Warranty and degradation
Product warranty 10 yrs 10 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation - - Neither datasheet publishes this
Technology
Cell technology PERC PERC Same
Cell type Polycrystalline Polycrystalline Same
Cell count 72 72 Same
Bifacial No No Same
04

Against the whole database

14,005 panels
Efficiency
#13,453 vs #13,662
JS330P leads by 209 places
Power density
#13,436 vs #13,641
JS330P leads by 205 places
Heat behaviour
#13,796 vs #13,796
Tied - the same position in the database
Weight
#13,465 vs #13,628
JS330P leads by 163 places
Warranty
#9,798 vs #9,798
Tied - the same position in the database
Overall
#13,426 vs #13,616
JS330P leads by 190 places
05

More useful comparisons

Open the full database
Same series, other bin
Jinko Solar JS330P vs Jinko Solar JS325P
One difference: module efficiency
Same series, other bin
Jinko Solar JS330P vs Jinko Solar JS320P
4 differences, the largest is module efficiency
Same series, other bin
Jinko Solar JS330P vs Jinko Solar JS315P
4 differences, the largest is module efficiency
Same manufacturer
Jinko Solar JS330P vs Jinko Solar JKM710-735N-66HL5-BDV-Z3-EU (735W bin)
18 differences, the largest is module efficiency
Same manufacturer
Jinko Solar JS330P vs Jinko Solar JKM735N-66HL5-BDV-Z3-EU
18 differences, the largest is module efficiency
Same manufacturer
Jinko Solar JS330P vs Jinko Solar JKM735N-66HL5-BDV-Z6-EU
18 differences, the largest is module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Jinko Solar JS330P or Jinko Solar JS310P?
According to our database: Jinko Solar JS330P has higher module efficiency (17.00% vs 15.90%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Jinko Solar JS330P and Jinko Solar JS310P?
Jinko Solar JS330P has a module efficiency of 17.00%, while Jinko Solar JS310P is 15.90%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Jinko Solar JS330P use vs Jinko Solar JS310P?
Jinko Solar JS330P uses PERC cells; Jinko Solar JS310P uses PERC. Modern n-type technologies (TOPCon, HJT, BC) typically deliver higher efficiency and lower degradation compared to older PERC (p-type) cells.
What is the warranty on Jinko Solar JS330P and Jinko Solar JS310P?
Jinko Solar JS330P has a 25 years power warranty; Jinko Solar JS310P has a 25 years power warranty. The power warranty guarantees a minimum percentage of rated output at the end of the warranty period (typically 80-87%). Product (materials) warranties are usually shorter.

Shop prices: See 170 Jinko Solar offers

Every figure here is from the manufacturers' own datasheets - a dash means the value is not published, never an estimate. The thirty-year projection and the temperature scenarios are calculations from those figures, and each states its assumption above.