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RS6S330P

330 Wp Polycrystalline
ComparePV verdict

Warranty pick, weak in heat

Rank 13,245 of 14,005
Compare panels Datasheet PDF
Power (Wp)
330
Weak · bottom 17%
Efficiency (%)
17.01
Weak · bottom 11%
Density (Wp/m²)
170.1
Weak · bottom 11%
Temp (%/°C)
-0.390
Weak · bottom 7%
Weight (kg)
20.5
Weak · bottom 24%
Warranty (yrs)
30
Strong · top 20%

The RS6S-P series consists of 72-cell polycrystalline modules engineered for on-grid installations where predictable performance over decades of operation matters most. Instead of the standard three, the panels feature five busbars, which improves current collection from each cell and reduces resistive losses, translating into more stable module output over time. The cells are manufactured using a junction formation technology adopted from semiconductor manufacturing, delivering longer minority carrier lifetimes and a very tight distribution of production parameters - which in turn minimizes mismatch losses across a string of panels. The panels are PID-free, eliminating the risk of power loss from potential-induced degradation, a common issue in cheaper alternatives. An anti-reflective, hydrophobic coating improves light absorption and helps the surface self-clean from dust, resulting in better yield under low-light conditions - mornings, evenings, and cloudy days. The construction withstands high wind and snow loads, making it well suited to coastal areas, deserts, and lakeside sites. The RS6S-P series is backed by a linear power warranty covering 30 years, along with a 12-year product warranty, making it a sound choice for investors who value low lifecycle cost over simple upfront price.

Ranking

3,085 panels in the 230-430 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 17.01% 20.30% Weak · bottom 11% 13,445
Power density 170.1 202.8 Weak · bottom 11% 13,436
Temperature coefficient -0.390 -0.350 Weak · bottom 7% 13,579
Weight per kWp 62.1 55.7 Weak · bottom 24% 12,745
Performance warranty 30 yrs 25 yrs Strong · top 20% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 3 caution
Best for

Residential.

Not ideal for

Hot climates, tight roof space and roofs where every square metre has to count.

Strengths
30 year performance warranty

Top 20% of the 230-430 W band, against a median of 25 yrs.

Watch-outs
-0.390 %/°C temperature coefficient

Bottom 7% of the 230-430 W band, against a median of -0.350. Ranked 13,579th in the whole database.

17.01% module efficiency

Bottom 11% of the 230-430 W band, against a median of 20.30%.

170.1 watts per square metre

Bottom 11% of the 230-430 W band, against a median of 202.8.

Notes from the database
  • Efficiency of 17.0% is 4.8pp below the database median (21.8%)
  • 170.1 W/m² power density is 48.0 W/m² below database median (218.1 W/m²) - requires larger installation area
  • Temperature coefficient of -0.39%/°C is 0.09pp worse than database median (-0.30%/°C) - higher losses in summer heat
  • 20.5 kg weight - 6.0 kg lighter than database median (26.5 kg), reducing installation effort
  • In the top 96% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 330 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 17.01 % Weak Segment median 20.30%
Vmpp · Impp 37.80 V · 8.74 A Operating point at max power
Voc · Isc 46.40 V · 9.23 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1956×992×30 mm · 1.94 m² of roof
Weight 20.5 kg Weak Weak · bottom 24%
Cells 72 Polycrystalline
Coefficient Pmax -0.390 %/°C Weak bottom 7% of its segment
Coefficient Voc · Isc -0.320 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 30 years Strong top 20% · median 25 yrs
Degradation 0.50 % Per year after the first

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
-0.390 %/°C against a segment median of -0.350
-

Alternatives

All Resun Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Resun Solar RS6S330P 330 W 17.01% -0.390 20.5 kg You are here
LNSK-340M 340 W 20.08% -0.360 21.0 kg Cooler, +3.1 pp, -5 yr warranty
CS3K-330P 330 W 19.90% -0.360 18.5 kg Cooler, +2.9 pp, -5 yr warranty
CS3K-335MB-AG 335 W 19.90% -0.360 22.3 kg Cooler, heavier, +2.9 pp
LNSK-335M 335 W 19.78% -0.360 21.0 kg Cooler, +2.8 pp, -5 yr warranty
CS3L-365P 365 W 19.70% -0.360 21.1 kg +35 W, +2.7 pp, -5 yr warranty
CS3K-325P 325 W 19.60% -0.360 18.5 kg Cooler, +2.6 pp, -5 yr warranty
CS3L-360P 360 W 19.50% -0.360 21.1 kg Cooler, +2.5 pp, -5 yr warranty
LNSK-330M 330 W 19.49% -0.360 21.0 kg Cooler, +2.5 pp, -5 yr warranty
SPR-MAX7-475 475 W 24.00% -0.270 21.1 kg +145 W, cooler, +7.0 pp
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +140 W, cooler, +6.7 pp
SPR-MAX7-465 465 W 23.50% -0.270 21.1 kg +135 W, cooler, +6.5 pp
SPR-MAX6-440 440 W 22.80% -0.290 20.9 kg +110 W, cooler, +5.8 pp
SPR-MAX6-435 435 W 22.50% -0.290 20.9 kg +105 W, cooler, +5.5 pp
LEPV 132 ULTRA PREMIUM BLACK 440Wp (LEPV 440) 440 W 22.37% -0.290 21.0 kg +110 W, cooler, +5.4 pp
NS-420MH-80 420 W 22.28% -0.290 20.0 kg +90 W, cooler, +5.3 pp
NS-420MH-80 420 W 22.28% -0.290 20.0 kg +90 W, cooler, +5.3 pp

Found 144 panels of the same or similar size to this one, within ±10 mm. See them here Found 232 panels of the same or similar size to this one, within ±25 mm. See them here Found 351 panels of the same or similar size to this one, within ±50 mm. See them here Found 550 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
Is the Resun Solar RS6S-P series still available for purchase?
The RS6S-P series has been discontinued from Resun Solar's current production lineup. New installations should generally be based on the manufacturer's current models, though RS6S-P panels may still be available through distributors as remaining stock. Buyers should check the production date and warranty status with the seller before purchasing, as service support for discontinued models can be limited.
What is the maximum power output of the RS6S-P panel and what installations is it suited for?
RS6S-P series panels reach a maximum power output of up to 330 Wp. This is typical for classic 72-cell polycrystalline modules and works well for on-grid installations of medium to large capacity, such as single-family home roofs, outbuildings, or smaller solar farms where stable, predictable energy production matters most.
How does the 5-busbar design differ from standard 3-busbar panels?
Five busbars instead of three provide more current collection paths per cell, reducing resistive losses and shortening the electron travel distance within the cell. This results in more stable long-term performance and lower risk of micro-crack-related power loss. In practice, it translates into slightly higher and more consistent energy yield over the panel's service life.
Are RS6S-P panels resistant to PID degradation?
Yes, the RS6S-P series is PID-free, meaning it does not suffer from power loss caused by voltage-induced polarization between the cell and frame. This is a common issue in cheaper modules, especially in large installations with long panel strings. PID resistance ensures the module maintains its rated output throughout the warranty period without a sudden drop in performance after a few years.
How well do RS6S-P panels perform in low-light and cloudy conditions?
An anti-reflective, hydrophobic coating improves light absorption and helps the surface self-clean from dust and debris. As a result, RS6S-P panels deliver better output in the morning, evening, and on overcast days compared to modules without such coating. This is a significant advantage for locations with variable sunlight, such as Poland, where fully sunny days are not the norm year-round.
What warranty comes with the Resun Solar RS6S-P series and what does it cover?
The manufacturer backs the RS6S-P series with a 12-year product warranty and a 30-year linear power warranty. The product warranty covers material and workmanship defects, while the power warranty guarantees a minimum performance level throughout that period. This combination makes the series a solid choice for long-term life-cycle cost, even though the panel itself has been discontinued from current production.
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