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Waaree Brand review

WSD-340

340 Wp PERC
ComparePV verdict

Middle of its segment, needs the roof space

Rank 13,395 of 14,005
Compare panels Datasheet PDF
Power (Wp)
340
Strong · top 13%
Efficiency (%)
16.89
Weak · bottom 15%
Density (Wp/m²)
168.9
Weak · bottom 14%
Temp (%/°C)
-0.386
Weak · bottom 19%
Weight (kg)
23.5
Weak · 4.5 kg above median
Warranty (yrs)
25
Typical · median 25 yrs

The Waaree ADITYA SERIES is an advanced technological solution designed to maximize energy yields in diverse climatic conditions. These panels use high-efficiency silicon cells, which are characterized by an excellent response to diffused light, making them an ideal choice for the Polish market. Thanks to the use of a reinforced frame and low-iron tempered glass, the modules demonstrate high mechanical resistance to extreme loads, such as heavy snow or gusty winds. A key differentiator of this series is the PID-limiting technology, which directly translates into a longer installation lifespan and slower power degradation over time. The ADITYA SERIES effectively solves the problem of energy losses resulting from high temperatures, offering a favorable temperature coefficient, which stabilizes electricity production on hot days. It is a product dedicated to both demanding prosumers and commercial investors looking for a compromise between innovation and solid build quality. They are distinguished from the competition by a rigorous quality control process, ensuring the repeatability of the parameters of each module. By choosing this series, the user gains the assurance of failure-free system operation and a high aesthetic finish that goes hand in hand with the modern design of contemporary photovoltaics.

Ranking

286 panels in the segment PERC 300-350 W
Metric This panel Median Position in segment Overall rank
Module efficiency 16.89% 19.00% Weak · bottom 15% 13,487
Power density 168.9 190.0 Weak · bottom 14% 13,479
Temperature coefficient -0.386 -0.360 Weak · bottom 19% 13,485
Weight per kWp 69.1 60.0 Weak · bottom 20% 13,365
Performance warranty 25 yrs 25 yrs Typical 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential and commercial.

Not ideal for

Roofs where every square metre has to count, tight roof space and hot climates.

Watch-outs
168.9 watts per square metre

Bottom 14% of the PERC 300-350 W segment, against a median of 190.0.

16.89% module efficiency

Bottom 15% of the PERC 300-350 W segment, against a median of 19.00%.

-0.386 %/°C temperature coefficient

Bottom 19% of the PERC 300-350 W segment, against a median of -0.360.

Notes from the database
  • Efficiency of 16.9% is 2.6pp below the PERC 0-400W median (19.4%)
  • 168.9 W/m² power density is 25.5 W/m² below PERC 0-400W median (194.4 W/m²) - requires larger installation area
  • At -0.39%/°C, loses 0.03pp more power per degree than PERC 0-400W median (-0.36%/°C)
  • At 23.5 kg, this panel is 3.0 kg heavier than the PERC 0-400W median (20.5 kg) - more demanding for installation crews
  • #13487 for efficiency, #13485 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 340 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 16.89 % Weak Segment median 19.00%
Vmpp · Impp 38.25 V · 8.90 A Operating point at max power
Voc · Isc 45.74 V · 9.53 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2007×1003×40 mm · 2.01 m² of roof
Weight 23.5 kg Weak Weak · 4.5 kg above median
Cells 144 · PERC Polycrystalline
Coefficient Pmax -0.386 %/°C Weak bottom 19% of its segment
Coefficient Voc · Isc -0.278 · 0.051 %/°C
NOCT 43 °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 80.7 % Equals 262 W guaranteed
Degradation 2.50 → 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
-0.386 %/°C against a segment median of -0.360
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Waaree WSD-340 340 W 16.89% -0.386 23.5 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg Cooler, lighter, +3.2 pp
CS3K-330P 330 W 19.90% -0.360 18.5 kg Cooler, lighter, +3.0 pp
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg Cooler, +3.0 pp, +5 yr warranty
LNSK-335M 335 W 19.78% -0.360 21.0 kg Cooler, lighter, +2.9 pp
CS3L-365P 365 W 19.70% -0.360 21.1 kg +25 W, cooler, +2.8 pp
CS3U-390P 390 W 19.70% -0.360 22.5 kg +50 W, cooler, +2.8 pp
CS3K-325P 325 W 19.60% -0.360 18.5 kg Cooler, lighter, +2.7 pp
WSD-325 325 W 16.14% -0.386 23.5 kg -15 W, -0.8 pp
WSD-330 330 W 16.39% -0.386 23.5 kg -10 W, -0.5 pp
WSD-335 335 W 16.64% -0.386 23.5 kg -0.2 pp
WSD-345 345 W 17.14% -0.386 23.5 kg +0.2 pp
WSD-350 350 W 17.39% -0.386 23.5 kg +10 W, +0.5 pp
Bi-11-380 380 W 19.02% -0.370 28.0 kg +40 W, heavier, +2.1 pp
WSMD-380 380 W 18.88% -0.370 23.5 kg +40 W, cooler, +2.0 pp
WSMD-385 385 W 19.13% -0.370 23.5 kg +45 W, cooler, +2.2 pp
Bi-11-385 385 W 19.27% -0.370 28.0 kg +45 W, heavier, +2.4 pp
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +135 W, +7.1 pp, +15 yr warranty

Found 107 panels of the same or similar size to this one, within ±10 mm. See them here Found 206 panels of the same or similar size to this one, within ±25 mm. See them here Found 321 panels of the same or similar size to this one, within ±50 mm. See them here Found 738 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Can Waaree ADITYA SERIES panels withstand heavy snow and strong wind loads in Poland?
Yes, ADITYA SERIES modules feature a reinforced frame and low-iron tempered glass, allowing them to withstand high mechanical loads — typically up to 5400 Pa for snow and 2400 Pa for wind. These figures significantly exceed average Polish climate conditions, making the panels suitable for both pitched and flat roofs, even in areas with heavy snowfall.
What is PID mitigation technology in Waaree ADITYA panels and is it actually useful?
PID (Potential Induced Degradation) is a gradual power loss caused by voltage potential differences between the cell and frame, worsened by high humidity and temperature. The PID-mitigation technology used in ADITYA SERIES reduces this effect, so the panel loses efficiency more slowly over its lifetime. In practice, this means more stable energy yields throughout the 25-year power warranty period.
What warranty do Waaree ADITYA SERIES 400 Wp panels come with?
The manufacturer provides a 10-year product warranty covering material and workmanship defects, plus a 25-year power output warranty. This means the panel should still deliver the guaranteed performance level specified in the datasheet after 25 years, giving investors a predictable return on investment across a full generation, or even two, of solar system operation.
Do Waaree ADITYA SERIES panels lose power on hot days?
ADITYA SERIES uses PERC cells with a favorable temperature coefficient, which limits power loss at high module operating temperatures. As a result, the panels maintain more stable current output on hot, sunny days compared to older cell technologies — an important factor for roof installations with poor ventilation, where modules tend to heat up more.
Is Waaree ADITYA SERIES a bifacial panel?
No, ADITYA SERIES is a mono-facial panel line built with high-efficiency PERC silicon cells rated up to 400 Wp. If you're looking for additional energy yield from reflected light on the rear side of the module, consider a different bifacial series from Waaree — this line instead focuses on maximizing efficiency and durability in a standard single-sided design.
Is Waaree a reputable solar panel manufacturer, and where is it based?
Waaree is an India-based Tier 1 manufacturer, meaning it operates its own production lines, maintains stable financials, and is regularly audited for project bankability. The ADITYA SERIES undergoes strict quality control at every production stage, ensuring consistent module parameters — an important factor for larger installations where uniform panel performance matters.
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