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Resun Solar Brand review

RSM070P

70 Wp Polycrystalline
ComparePV verdict

Warranty pick, modest efficiency

Rank 13,867 of 14,005
Compare panels Datasheet PDF
Power (Wp)
70
Weak · bottom 5%
Efficiency (%)
13.80
Weak · bottom 12%
Density (Wp/m²)
137.5
Weak · bottom 16%
Temp (%/°C)
-0.390
Weak · bottom 18%
Weight (kg)
5.6
Typical · median 9.0 kg
Warranty (yrs)
30
Strong · top 17%

Ranking

163 panels in the 0-170 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 13.80% 15.50% Weak · bottom 12% 13,934
Power density 137.5 154.0 Weak · bottom 16% 13,919
Temperature coefficient -0.390 -0.370 Weak · bottom 18% 13,579
Weight per kWp 80.0 72.9 Typical 13,735
Performance warranty 30 yrs 25 yrs Strong · top 17% 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

1 positive · 3 caution
Best for

Owners who value a long output guarantee.

Not ideal for

Tight roof space, roofs where every square metre has to count and hot climates.

Strengths
30 year performance warranty

Top 17% of the 0-170 W band, against a median of 25 yrs.

Watch-outs
13.80% module efficiency

Bottom 12% of the 0-170 W band, against a median of 15.50%.

137.5 watts per square metre

Bottom 16% of the 0-170 W band, against a median of 154.0.

-0.390 %/°C temperature coefficient

Bottom 18% of the 0-170 W band, against a median of -0.370.

Notes from the database
  • Module efficiency of 13.8% is 8.0pp below average for database panels (median: 21.8%)
  • At 137.5 W/m², this panel generates 80.6 W/m² less per unit area than database median (218.1 W/m²)
  • -0.39%/°C temperature coefficient - 0.09pp worse than database median (-0.30%/°C), expect higher hot weather losses
  • 5.6 kg weight - 20.9 kg lighter than database median (26.5 kg), reducing installation effort
  • In the top 99% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 70 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 13.80 % Weak Segment median 15.50%
Vmpp · Impp 18.77 V · 3.73 A Operating point at max power
Voc · Isc 22.50 V · 4.13 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 760×670×25 mm · 0.51 m² of roof
Weight 5.6 kg Typical Typical · median 9.0 kg
Cells 36 Polycrystalline
Coefficient Pmax -0.390 %/°C Weak bottom 18% 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 17% · 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 -0.370
-

Alternatives

All Resun Solar panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Resun Solar RSM070P 70 W 13.80% -0.390 5.6 kg You are here
WS-110 /12V 110 W 15.75% -0.386 9.0 kg +40 W, +1.9 pp, -20 yr warranty
RSM080P 80 W 15.50% -0.390 5.7 kg +10 W, +1.7 pp
WS-105 /12V 105 W 15.03% -0.386 9.0 kg +35 W, +1.2 pp, -20 yr warranty
RSM090P 90 W 14.80% -0.390 6.4 kg +20 W, +1.0 pp
RSM-100P-EX 100 W 14.70% -0.390 7.0 kg +30 W, heavier, +0.9 pp
WS-100 /12V 100 W 14.31% -0.386 9.0 kg +30 W, heavier, -20 yr warranty
NS-100MH-36 100 W 21.29% -0.290 5.0 kg Cooler, +7.5 pp, -5 yr warranty
YH100W-12M 100 W 19.63% -0.400 1.9 kg +30 W, lighter, +5.8 pp
CE-100M36 100 W 19.57% -0.500 5.8 kg Hotter, +5.8 pp, -5 yr warranty
YH100W-18M 100 W 19.44% -0.340 5.4 kg +30 W, cooler, +5.6 pp
YH100W-18M 100 W 19.44% -0.340 5.4 kg +30 W, cooler, +5.6 pp
YH95W-18M 95 W 18.47% -0.340 5.4 kg +25 W, cooler, +4.7 pp
YH95W-18M 95 W 18.47% -0.340 5.4 kg +25 W, cooler, +4.7 pp
RT100WM 100 W 14.90% -0.230 5.8 kg +30 W, cooler, +1.1 pp
RSM060P 60 W 14.00% -0.390 4.8 kg -10 W

Found 8 panels of the same or similar size to this one, within ±10 mm. See them here Found 8 panels of the same or similar size to this one, within ±25 mm. See them here Found 9 panels of the same or similar size to this one, within ±50 mm. See them here Found 11 panels of the same or similar size to this one, within ±100 mm. See them here

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