Skip to main content
Waaree Brand review

WS-140/12V

140 Wp Polycrystalline
ComparePV verdict

Middle of its segment, modest efficiency

Rank 13,969 of 14,005
Compare panels Datasheet PDF
Power (Wp)
140
Typical for its class
Efficiency (%)
13.92
Weak · bottom 10%
Density (Wp/m²)
139.2
Weak · bottom 12%
Temp (%/°C)
-0.386
Typical · median -0.370
Weight (kg)
13.0
Weak · 1.5 kg above median
Warranty (yrs)
10
Weak · bottom 13%

Waaree Arun Series are advanced photovoltaic modules utilizing n-type TOPCon cell technology, which significantly increases energy conversion efficiency in challenging lighting conditions. They focus on effectively solving the problem of power loss at high operating temperatures, which translates to more stable yields on hot days. The use of larger silicon wafers combined with high bifacial efficiency ensures that these panels generate additional energy from both sides of the module, maximizing the yield from every square meter of surface area. By using high-transmittance glass with an anti-reflective coating, this series handles the Polish, often cloudy sky perfectly, capturing more diffused light than standard solutions. It is an optimal choice for projects such as utility-scale solar farms and demanding business installations, where lowering the LCOE is key. Importantly, the Arun series shows minimal susceptibility to LID-type degradation, which, combined with heavy-duty mechanical resistance to extreme weather phenomena, places it at the forefront of premium products in terms of longevity and investment security.

Ranking

331 panels in the 40-240 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 13.92% 15.91% Weak · bottom 10% 13,925
Power density 139.2 159.1 Weak · bottom 12% 13,907
Temperature coefficient -0.386 -0.370 Typical 13,485
Weight per kWp 92.9 70.9 Weak · bottom 14% 13,877
Performance warranty 10 yrs 25 yrs Weak · bottom 13% 13,806
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Commercial and hot-climate.

Not ideal for

Tight roof space, roofs where every square metre has to count and owners who want a long output guarantee.

Watch-outs
13.92% module efficiency

Bottom 10% of the 40-240 W band, against a median of 15.91%.

139.2 watts per square metre

Bottom 12% of the 40-240 W band, against a median of 159.1.

10 year performance warranty

Bottom 13% of the 40-240 W band, against a median of 25 yrs.

Notes from the database
  • At 13.9% efficiency, this panel is 7.9pp below the database median of 21.8%
  • 139.2 W/m² power density is 78.9 W/m² below database median (218.1 W/m²) - requires larger installation area
  • At -0.39%/°C, loses 0.09pp more power per degree than database median (-0.30%/°C)
  • Weight of 13.0 kg (13.5 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • Ranked #13925 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 140 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 13.92 % Weak Segment median 15.91%
Vmpp · Impp 17.66 V · 7.93 A Operating point at max power
Voc · Isc 22.37 V · 8.34 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1490×675×35 mm · 1.01 m² of roof
Weight 13.0 kg Weak Weak · 1.5 kg above median
Coefficient Pmax -0.386 %/°C Typical median -0.370 of its segment
Coefficient Voc · Isc -0.278 · 0.051 %/°C
NOCT 46 °C At 800 W/m², 20 °C ambient
Product warranty 5 years Hardware defects only
Performance warranty 10 years Weak bottom 13% · median 25 yrs

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 -0.370
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Waaree WS-140/12V 140 W 13.92% -0.386 13.0 kg You are here
MYP3036-180 180 W 17.65% -0.370 11.3 kg +40 W, +3.7 pp, +15 yr warranty
MYP3036-180 180 W 17.65% -0.370 11.3 kg +40 W, +3.7 pp, +15 yr warranty
MYP3036-175 175 W 17.16% -0.370 11.3 kg +35 W, +3.2 pp, +15 yr warranty
MYP3036-175 175 W 17.16% -0.370 11.3 kg +35 W, +3.2 pp, +15 yr warranty
MYM2036-170 170 W 17.10% -0.370 11.2 kg +30 W, +3.2 pp, +15 yr warranty
MYP3036-170 170 W 16.69% -0.370 11.3 kg +30 W, +2.8 pp, +15 yr warranty
MYP3036-170 170 W 16.67% -0.370 11.3 kg +30 W, +2.8 pp, +15 yr warranty
MYM2036-165 165 W 16.60% -0.370 11.2 kg +25 W, +2.7 pp, +15 yr warranty
WS-190 /24V 190 W 16.33% -0.386 13.0 kg +50 W, +2.4 pp
WS-125 /24V 125 W 12.43% -0.386 13.0 kg -15 W, -1.5 pp
WS-130 /24V 130 W 12.93% -0.386 13.0 kg -10 W, -1.0 pp
WS-145 /12V 145 W 14.42% -0.386 13.0 kg +0.5 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg +140 W, +9.4 pp, +20 yr warranty
GKA182M285W 285 W 23.00% - 10.8 kg +145 W, +9.1 pp, +20 yr warranty
GKA182M240W 240 W 23.00% - 10.8 kg +100 W, +9.1 pp, +20 yr warranty
GKA182M260W 260 W 23.00% - 10.8 kg +120 W, +9.1 pp, +20 yr warranty

Found 92 panels of the same or similar size to this one, within ±10 mm. See them here Found 92 panels of the same or similar size to this one, within ±25 mm. See them here Found 94 panels of the same or similar size to this one, within ±50 mm. See them here Found 129 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of the Waaree Arun Series panel?
Arun Series modules reach a maximum power of 235 Wp thanks to n-type TOPCon cells. This provides a reliable base for stable installations where predictable energy yield matters, even at the high module operating temperatures typical of Polish summers. Lower thermal losses let the panel maintain higher efficiency than comparable modules built on older PERC technology.
Are Waaree Arun Series panels bifacial (double-sided)?
No, the Arun Series consists of monofacial modules — energy is generated only from the front side of the panel. However, the high-transmission glass with an anti-reflective coating improves diffuse light capture, boosting yield on cloudy days even though there is no rear-side power generation.
What warranty comes with Waaree Arun Series modules?
The manufacturer provides a 5-year product (materials) warranty and a 10-year power output warranty. Waaree is a Tier 1 manufacturer, meaning proven financial stability and bankability — an important factor when applying for loans or subsidies for PV installations.
How does TOPCon technology in the Arun Series differ from standard PERC cells?
The n-type TOPCon cells used in the Arun Series have a lower temperature coefficient than classic PERC cells, meaning smaller power losses at the high module temperatures reached in summer. They also show lower susceptibility to LID degradation, helping the panel maintain its rated efficiency for longer over its service life.
Will Waaree Arun Series panels perform well under Poland's frequently overcast skies?
Yes, thanks to high-transmission glass and an anti-reflective coating, Arun Series modules effectively capture diffuse light, which dominates in Poland for most of the year. Combined with the low temperature coefficient of TOPCon cells, this results in a more stable energy yield regardless of weather conditions.
Is Waaree a proven, bankable solar panel manufacturer?
Yes, Waaree Energies is an Indian Tier 1 manufacturer with a long-standing presence in the global PV market. Tier 1 status confirms the company's financial stability and its ability to honor long-term warranty commitments, which matters when financing an installation through a loan or subsidy program.
Add to compare