Skip to main content
Waaree Brand review

WS-205

205 Wp Polycrystalline
ComparePV verdict

Middle of its segment, modest efficiency

Rank 13,939 of 14,005
Compare panels Datasheet PDF
Power (Wp)
205
Typical for its class
Efficiency (%)
13.90
Weak · bottom 7%
Density (Wp/m²)
139.0
Weak · bottom 7%
Temp (%/°C)
-0.386
Typical · median -0.370
Weight (kg)
17.5
Weak · 2.2 kg above median
Warranty (yrs)
10
Weak · bottom 7%

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

542 panels in the 105-305 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 13.90% 16.60% Weak · bottom 7% 13,930
Power density 139.0 166.0 Weak · bottom 7% 13,914
Temperature coefficient -0.386 -0.370 Typical 13,485
Weight per kWp 85.4 67.9 Weak · bottom 14% 13,826
Performance warranty 10 yrs 25 yrs Weak · bottom 7% 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, owners who want a long output guarantee and roofs where every square metre has to count.

Watch-outs
13.90% module efficiency

Bottom 7% of the 105-305 W band, against a median of 16.60%. Ranked 13,930th in the whole database.

10 year performance warranty

Bottom 7% of the 105-305 W band, against a median of 25 yrs. Ranked 13,806th in the whole database.

139.0 watts per square metre

Bottom 7% of the 105-305 W band, against a median of 166.0. Ranked 13,914th in the whole database.

Notes from the database
  • Module efficiency of 13.9% is 7.9pp below average for database panels (median: 21.8%)
  • 139.0 W/m² power density is 79.1 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 17.5 kg (9.0 kg below database median of 26.5 kg) allows easier transport and roof mounting
  • #13930 for efficiency, #13485 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 205 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 13.90 % Weak Segment median 16.60%
Vmpp · Impp 27.10 V · 7.57 A Operating point at max power
Voc · Isc 33.10 V · 8.25 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1490×990×35 mm · 1.48 m² of roof
Weight 17.5 kg Weak Weak · 2.2 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 7% · 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-205 205 W 13.90% -0.386 17.5 kg You are here
MYP3036-180 180 W 17.65% -0.370 11.3 kg Lighter, +3.7 pp, +15 yr warranty
MYP3036-180 180 W 17.65% -0.370 11.3 kg Lighter, +3.7 pp, +15 yr warranty
MYP3048-235 235 W 17.54% -0.370 12.5 kg Lighter, +3.6 pp, +15 yr warranty
MYP3048-235 235 W 17.54% -0.370 15.2 kg +30 W, +3.6 pp, +15 yr warranty
MYP3048-230 230 W 17.16% -0.370 12.5 kg Lighter, +3.3 pp, +15 yr warranty
MYP3036-175 175 W 17.16% -0.370 11.3 kg Lighter, +3.3 pp, +15 yr warranty
MYP3048-230 230 W 17.16% -0.370 15.2 kg +25 W, +3.3 pp, +15 yr warranty
MYP3036-175 175 W 17.16% -0.370 11.3 kg Lighter, +3.3 pp, +15 yr warranty
JS 225P 225 W 17.13% -0.450 15.4 kg Hotter, +3.2 pp, +15 yr warranty
MYM2036-170 170 W 17.10% -0.370 11.2 kg Lighter, +3.2 pp, +15 yr warranty
WS-200 200 W 13.56% -0.386 17.5 kg -0.3 pp
WS-215 215 W 14.58% -0.386 17.5 kg +10 W, +0.7 pp
WS-220 220 W 14.91% -0.386 17.5 kg +15 W, +1.0 pp
WS-225 225 W 15.25% -0.386 17.5 kg +20 W, +1.3 pp
WS-230 230 W 15.59% -0.386 17.5 kg +25 W, +1.7 pp
WS-235 235 W 15.93% -0.386 17.5 kg +30 W, +2.0 pp
MYM2054-270 270 W 21.20% -0.370 19.0 kg +65 W, +7.3 pp, +15 yr warranty

Found 26 panels of the same or similar size to this one, within ±10 mm. See them here Found 26 panels of the same or similar size to this one, within ±25 mm. See them here Found 26 panels of the same or similar size to this one, within ±50 mm. See them here Found 34 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