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340 vs 345 17 of 18 identical Swap Change panels

Waaree WS-340 vs Waaree WS-345

WS-340
340 Wp 17.07 %
Open panel page Datasheet PDF
VS
WS-345
345 Wp 17.32 %
Open panel page Datasheet PDF
The verdict

345 leads on the differences that matter

The largest is module efficiency: 0.25 pp more efficient. 17 of 18 comparable parameters are identical, with 1 more left out because at least one datasheet does not publish it.

See the one difference
How alike are they
17 of 18 comparable
parameters are identical
identical differs not published
01

What actually differs

1 of 18 parameters
Parameter 340 345 Difference
Module efficiency 17.07 % 17.32 % 0.25 pp more efficient
02

What it means on a roof

Thirty years of production
Each panel's own declared degradation curve, at 1,200 kWh/kWp a year
Same temp coeff. for both panels (-0.386 %/°C), so a warmer roof scales both curves by the same factor: the totals fall together and neither panel gains on the other.
340
10,692 kWh
345
10,849 kWh
Lifetime gap
157 kWh
Output when it is hot
Rated power carried across the range a module actually sees
Scenario 340 345
Standard test conditions 25 °C 100.0% of rated power 340 W 345 W
Cool, bright day 40 °C 94.2% of rated power 320 W 325 W
Typical summer roof 55 °C 88.4% of rated power 301 W 305 W
Hot roof 70 °C 82.6% of rated power 281 W 285 W
03

Full specification

Parameter 340 345 Difference
Power and efficiency
Rated power 340 Wp 345 Wp Effectively the same
Module efficiency 17.07 % 17.32 % +0.25 pp for 345
Power density 170.8 Wp/m² 173.3 Wp/m² Effectively the same
Open-circuit voltage 46.90 V 47.00 V Effectively the same
Voltage at max power 38.25 V 38.55 V Effectively the same
Short-circuit current 9.35 A 9.40 A Effectively the same
Current at max power 8.90 A 8.95 A Effectively the same
Temperature
Temperature coefficient -0.386 %/°C -0.386 %/°C Same
Mechanical
Dimensions 1985x1003x35 mm 1985x1003x35 mm Same
Module area 1.991 m² 1.991 m² Same
Weight 21.5 kg 21.5 kg Same
Weight per kWp 63.2 kg/kWp 62.3 kg/kWp Effectively the same
Warranty and degradation
Product warranty 10 yrs 10 yrs Same
Performance warranty 25 yrs 25 yrs Same
Annual degradation 0.70 %/yr 0.70 %/yr Same
Technology
Cell technology - - Neither datasheet publishes this
Cell type Polycrystalline Polycrystalline Same
Cell count 72 72 Same
Bifacial No No Same
04

Against the whole database

14,129 panels
Efficiency
#13,554 vs #13,493
345 leads by 61 places
Power density
#13,546 vs #13,481
345 leads by 65 places
Heat behaviour
#13,565 vs #13,565
Tied - the same position in the database
Weight
#12,970 vs #12,859
345 leads by 111 places
Warranty
#9,912 vs #9,912
Tied - the same position in the database
Overall
#13,475 vs #13,418
345 leads by 57 places
05

More useful comparisons

Open the full database
Same series, other bin
Waaree WS-340 vs Waaree WSM-395
10 differences, the largest is module efficiency
Same series, other bin
Waaree WS-340 vs Waaree WSM-390
10 differences, the largest is module efficiency
Same series, other bin
Waaree WS-340 vs Waaree WSM-385
10 differences, the largest is module efficiency
Same series, other bin
Waaree WS-340 vs Waaree WSM-380
10 differences, the largest is module efficiency
Same series, other bin
Waaree WS-340 vs Waaree WS-350
3 differences, the largest is module efficiency
Same series, other bin
Waaree WS-340 vs Waaree WS-335
One difference: module efficiency
06

Written summary

07

Questions about this pairing

Which panel is better: Waaree WS-340 or Waaree WS-345?
According to our database: Waaree WS-345 has higher module efficiency (17.32% vs 17.07%). See the full spec comparison and 30-year energy simulation above for a complete picture.
What is the efficiency of Waaree WS-340 and Waaree WS-345?
Waaree WS-340 has a module efficiency of 17.07%, while Waaree WS-345 is 17.32%. Higher efficiency means more electricity from the same roof area - useful when space is limited.
What cell technology does Waaree WS-340 use vs Waaree WS-345?
Waaree WS-340 uses Polycrystalline cells; Waaree WS-345 uses Polycrystalline. 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 Waaree WS-340 and Waaree WS-345?
Waaree WS-340 has a 25 years power warranty; Waaree WS-345 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 25 Waaree 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.