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Renesola Brand review

RS4-500NBG-E1

500 Wp N-type Bifacial 80%
ComparePV verdict

Space saver, heavy for its output

Rank 5,847 of 14,005
Compare panels Datasheet PDF
Power (Wp)
500
Weak · bottom 8%
Efficiency (%)
23.17
Strong · top 18%
Density (Wp/m²)
231.7
Strong · top 16%
Temp (%/°C)
-0.290
Typical · median -0.290
Weight (kg)
28.0
Weak · 1.8 kg above median
Warranty (yrs)
30
Typical · median 30 yrs

The Renesola RS4-480~500NBG-E1 series consists of bifacial N-type modules using TOPCon technology, designed for high productivity in real-world conditions, even when the installation does not have ideal sunlight. The use of a bifacial design with double glass allows for better utilization of reflected light from the ground, resulting in higher energy yields compared to traditional monofacial modules, especially on bright roofs and in ground-mounted installations. The MBB half-cut technology and precise cell cutting also contribute to stable operation and reduced losses within the module.

In practice, this series helps to address the issue of reduced production under low sunlight conditions, thanks to its good performance in low-light conditions and favorable temperature characteristics. It is a good choice for commercial installations, PV farms, and modern rooftop projects where long-term reliability and predictable energy yields are important.

Ranking

140 panels in the segment N-type 500-550 W
Metric This panel Median Position in segment Overall rank
Module efficiency 23.17% 22.54% Strong · top 18% 1,473
Power density 231.7 225.3 Strong · top 16% 1,462
Temperature coefficient -0.290 -0.290 Typical 2,165
Weight per kWp 56.0 50.0 Weak · bottom 8% 10,317
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

7 positive · 3 caution
Best for

Commercial and shaded-installations.

Not ideal for

Weight-limited structures.

Strengths
231.7 watts per square metre

Top 16% of the N-type 500-550 W segment, against a median of 225.3.

23.17% module efficiency

Top 18% of the N-type 500-550 W segment, against a median of 22.54%.

Watch-outs
56.0 kg per kWp

Bottom 8% of the N-type 500-550 W segment, against a median of 50.0. Ranked 10,317th in the whole database.

What owners get
N-type TOPCon + bifacial dual glass

The combination of N-type TOPCon cells with a bifacial dual-glass design delivers lower LID/LeTID degradation and additional albedo-driven yield, resulting in higher annual energy production than classic monofacial PERC modules.

Efficiency up to 23.17% - above some peers

The upper efficiency range of 23.17% clearly exceeds Silfab SIL HM (21%) and Selfa SV120M.2.4 (22.6%), meaning higher power density per m² and a smaller required installation area for the same nominal power.

30-year linear power warranty

The 30-year power warranty matches the premium standard now offered by leading tier-1 manufacturers, providing predictable yield forecasts for long-term PV project financing models.

MBB half-cut cell technology

Multi-busbar half-cut cells reduce resistive losses and lower the risk of power loss from partial shading or microcracks, improving operational stability in field conditions.

Bankable tier-1 manufacturer since 2005

Renesola has operated since 2005 and holds tier-1 bankable status, easing project financing for commercial installations and solar farms; the series, launched in 2023, remains in active production (not discontinued).

Trade-offs
Product warranty limited to 15 years

The 15-year product warranty is shorter than the standard now offered by some tier-1 manufacturers (Jinko, Trina, LONGi), which have extended it to 25 years - a relatively weaker part of the warranty package compared to the same 30-year power warranty.

Efficiency below segment leader

The maximum efficiency of 23.17% is lower than Gokin's GK-3-54HGF (24.5% at the same 500 Wp power class), meaning the Renesola module requires slightly more roof or ground area for comparable power output.

Notes from the database
  • At 23.2% efficiency, this panel is 0.6pp above typical N-type 500-550W modules (median: 22.5%)
  • Power density of 231.7 W/m² packs 6.4 W/m² more into the same footprint vs N-type 500-550W median (225.3 W/m²)
  • At -0.29%/°C, hot weather performance is typical for N-type 500-550W panels
  • At 28.0 kg, this panel is 1.8 kg heavier than the N-type 500-550W median (26.2 kg) - more demanding for installation crews
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 500 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 23.17 % Strong Segment median 22.54%
Vmpp · Impp 37.17 V · 13.45 A Operating point at max power
Voc · Isc 45.18 V · 14.01 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1903×1134×30 mm · 2.16 m² of roof
Weight 28.0 kg Weak Weak · 1.8 kg above median
Cells 120 · N-type Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.290 %/°C Typical median -0.290 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 43 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 87.4 % Equals 437 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Renesola in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 500 Wp appear here. The rest cover the whole series.

Current-voltage curve 500W Current-voltage curve 500W 500 W Power-voltage curve 500W Power-voltage curve 500W 500 W

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
-
With bifacial gain
-

Degradation from this panel's own datasheet figures. No inverter, soiling or shading losses.

Heat losses
-0.290 %/°C against a segment median of -0.290
-
Bifacial gain
Rear gain over light concrete: -
-

Model: bifaciality × albedo × 0.6 view factor. A first-order estimate, not a yield simulation.

Filter these
Size
Panel Power Eff. Temp. Weight Difference
Renesola RS4-500NBG-E1 500 W 23.17% -0.290 28.0 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +1.8 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg Cooler, lighter, +1.6 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +1.5 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg Cooler, lighter, +1.3 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg Cooler, lighter, +1.3 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg Cooler, lighter, +1.3 pp
RS4-470N-E1 470 W 21.78% -0.290 24.2 kg -30 W, lighter, -1.4 pp
RS4-475N-E1 475 W 22.01% -0.290 24.2 kg -25 W, lighter, -1.2 pp
RS4-480N-E1 480 W 22.24% -0.290 24.2 kg -20 W, lighter, -0.9 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +60 W, lighter, +1.6 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +55 W, lighter, +1.4 pp
LR7-60HVHL-550M 550 W 24.40% -0.260 16.3 kg +50 W, lighter, +1.2 pp
JAT60S40-540/LR 540 W 24.40% -0.260 23.5 kg +40 W, lighter, +1.2 pp
GK-5-60HG-540M 540 W 24.40% -0.260 23.3 kg +40 W, lighter, +1.2 pp
JKM545-54QL6-DV-F1-EU 545 W 24.27% -0.260 27.5 kg +45 W, cooler, +1.1 pp
LR7-60HVH-545M 545 W 24.20% -0.260 25.0 kg +45 W, lighter, +1.0 pp

Found 725 panels of the same or similar size to this one, within ±10 mm. See them here Found 751 panels of the same or similar size to this one, within ±25 mm. See them here Found 870 panels of the same or similar size to this one, within ±50 mm. See them here Found 1499 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty does the Renesola RS4-480~500NBG-E1 series come with?
The RS4-480~500NBG-E1 series includes a 15-year product warranty covering material and workmanship defects, along with a 30-year linear power output warranty. This means Renesola guarantees a defined minimum power level for three decades, which is among the longer warranty standards currently available on the market and is an important factor when calculating long-term ROI for any PV installation.
Are the Renesola RS4-480~500NBG-E1 panels suitable for ground-mounted solar farms?
Yes, ground-mounted installations are one of the primary use cases for this series. The bifacial dual-glass design captures reflected light from the ground, grass, or gravel beneath the array, boosting overall energy yield. With up to 500 Wp output and N-type TOPCon cell technology, the series delivers a competitive cost per watt peak for utility-scale and commercial ground-mount projects.
What is TOPCon technology in the RS4-480~500NBG-E1 and how does it compare to older PERC modules?
TOPCon (Tunnel Oxide Passivated Contact) is an N-type cell technology that delivers higher efficiency and a lower temperature coefficient than P-type PERC cells. The RS4-480~500NBG-E1 reaches up to approximately 23% module efficiency, compared to 21-22% for a typical PERC panel. In practice, this means more power from the same roof area and smaller performance losses on hot summer days.
How does the RS4-480~500NBG-E1 perform in low-light and overcast conditions?
N-type TOPCon cells have better low-irradiance response than standard PERC cells, producing relatively more energy in diffuse light. The half-cut MBB cell design further reduces resistive losses and improves performance under partial shading. In climates with frequent cloud cover, these characteristics translate into measurably higher annual energy yields compared to older monofacial PERC modules.
How many cells does the RS4-480~500NBG-E1 have and what are its dimensions?
The RS4-480~500NBG-E1 is built on a 182 mm half-cut cell platform in a 120-cell configuration (182-120). Typical module dimensions for this class are approximately 2094 × 1038 mm with a weight of around 28-29 kg in dual-glass format. Always verify exact dimensions in the current manufacturer datasheet, as minor variations can exist between variants within the same series.
Is Renesola a reliable manufacturer and is the RS4-480~500NBG-E1 still available?
Renesola is a Bloomberg Tier 1 manufacturer listed on the NYSE, with over a decade of experience in the solar industry. Tier 1 status confirms the financial stability required to honor long-term warranty commitments. The RS4-480~500NBG-E1 series is not discontinued and remains in active production. Availability in specific markets depends on local distributors, so it is worth checking current stock with your regional supplier before purchasing.
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