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Fellow Energy FE54-18X(N)-420W
Fellow Energy Brand review

FE54-18X(N)-420W

420 Wp TOPCon Bifacial 80%
ComparePV verdict

Middle of its segment, weak in heat

Rank 10,217 of 14,005
Compare panels Datasheet PDF
Power (Wp)
420
Weak · bottom 16%
Efficiency (%)
21.48
Weak · bottom 14%
Density (Wp/m²)
214.8
Weak · bottom 15%
Temp (%/°C)
-0.310
Weak · bottom 10%
Weight (kg)
21.0
Typical · median 22.0 kg
Warranty (yrs)
30
Typical · median 30 yrs

The FE54-18X (N) Transparent series comprises photovoltaic modules based on N-type technology with half-cut cells, which naturally eliminate the problem of light-induced degradation (Zero LID). Thanks to a transparent backsheet and bifacial design, the panels capture radiation from both the front and the rear side, generating noticeably more energy compared to conventional P-type modules - particularly evident under diffuse or low-irradiance conditions. The series stands out for its resistance to cell microcracks, confirmed by triple EL testing during quality control, which directly translates into reliability throughout the entire lifecycle of the installation. The reinforced mechanical structure withstands extreme wind and snow loads, while resistance to PID and a favorable temperature coefficient ensure stable operation in demanding climatic conditions. The modules perform well both in ground-mounted PV farm installations and on the roofs of commercial buildings, where long-term performance is essential. The manufacturer confirms quality with a 30-year power output warranty featuring a record-low annual degradation rate of 0.40%, making this series particularly attractive to investors seeking maximum return on investment.

Ranking

1,218 panels in the segment TOPCon 400-450 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.48% 22.00% Weak · bottom 14% 8,152
Power density 214.8 220.2 Weak · bottom 15% 8,110
Temperature coefficient -0.310 -0.290 Weak · bottom 10% 8,005
Weight per kWp 50.0 51.4 Typical 3,317
Performance warranty 30 yrs 30 yrs Typical 21
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 4 caution
Best for

Commercial, agrivoltaic and shaded-installations.

Not ideal for

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

Watch-outs
-0.310 %/°C temperature coefficient

Bottom 10% of the TOPCon 400-450 W segment, against a median of -0.290.

21.48% module efficiency

Bottom 14% of the TOPCon 400-450 W segment, against a median of 22.00%.

214.8 watts per square metre

Bottom 15% of the TOPCon 400-450 W segment, against a median of 220.2.

What owners get
Segment-Leading Efficiency (22.3%)

The peak efficiency of 22.3% outpaces direct competitors: Luxen LUXPOWER N5 (22.28%), ZNShine ZXM7-UHLDD108 (22.28%), and Solitek SOLID Blackstar (22.27%). On a per-m² basis, this translates into measurably higher energy yield in rooftop installations where available surface area is limited.

N-type TOPCon: Zero LID and Low Temperature Coefficient

N-type technology inherently eliminates light-induced degradation (LID = 0%), and the Pmax temperature coefficient is just -0.29%/°C — outperforming typical PERC modules (-0.34 to -0.36%/°C), which results in noticeably higher energy yield during hot summer months.

80%±5% Bifaciality with Transparent Rear Layer

A bifaciality factor of 80%±5% places this series above the market standard (70–75% for typical bifacial PERC modules). In ground-mounted installations over high-albedo surfaces (gravel, concrete), the real-world rear-side energy gain can reach 10–20% compared to equivalent monofacial modules.

30-Year Power Warranty (0.40%/year Degradation)

The manufacturer guarantees a minimum of 87.4% of rated power after 30 years, with an annual degradation rate of 0.40% — among the lowest in the half-cut N-type segment. By comparison, typical PERC warranties assume 0.55%/year degradation over a 25-year horizon; the cumulative difference at year 25 is approximately 3–4 percentage points in favor of this series.

Mechanical Durability and EL Quality Control

Certified wind load of 2,400 Pa and snow load of 5,400 Pa — exceeding the IEC 61215 standard of 2,400 Pa for snow — combined with triple electroluminescence (EL) testing throughout the production process significantly reduces the risk of cell micro-cracks. This is particularly important for rooftop installations subject to prolonged dynamic loads.

Trade-offs
Limited Market Track Record

Fellow Energy has been in operation since 2020 (approximately 5–6 years), which raises questions about long-term warranty claim fulfillment given a 30-year power warranty and 15-year product warranty. By comparison, Trina Solar has operated since 1997, JA Solar since 2005, and LONGi since 2006. Tier 1 / bankable status and inclusion on the Fortune 500 list partially mitigate this risk; however, the absence of long-term field service data for this specific series remains an objective limitation.

Notes from the database
  • At 21.5% efficiency, this panel is 0.5pp below the TOPCon 400-450W median of 22.0%
  • 214.8 W/m² power density is 5.4 W/m² below TOPCon 400-450W median (220.2 W/m²) - requires larger installation area
  • At -0.31%/°C, loses 0.02pp more power per degree than TOPCon 400-450W median (-0.29%/°C)
  • Weight of 21.0 kg is typical for TOPCon 400-450W panels
  • Bifacial design (80% factor) captures reflected light - adds 4-12% yield on ground-mount or white roof

Specifications

Open datasheet PDF
Nominal power (Pmax) 420 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.48 % Weak Segment median 22.00%
Vmpp · Impp 31.50 V · 13.34 A Operating point at max power
Voc · Isc 38.10 V · 14.07 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1724×1134×30 mm · 1.96 m² of roof
Weight 21.0 kg Typical Typical · median 22.0 kg
Cells 108 · TOPCon Monocrystalline
Bifaciality 80 % Rear output as a share of front
Coefficient Pmax -0.310 %/°C Weak bottom 10% of its segment
Coefficient Voc · Isc -0.250 · 0.460 %/°C
NOCT 45 °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 367 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

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
-0.310 %/°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
Fellow Energy FE54-18X(N)-420W 420 W 21.48% -0.310 21.0 kg You are here
JST-EDMH-(445-465)W-TD (465W class) 465 W 23.81% -0.300 20.5 kg +45 W, cooler, +2.3 pp
LX-465M/182R-96+ GG 465 W 23.80% -0.260 23.5 kg +45 W, cooler, +2.3 pp
SPR-MAX7-470 470 W 23.70% -0.270 21.1 kg +50 W, +2.2 pp, +10 yr warranty
AIKO-A470-MAH54Mb 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.1 pp
AIKO-A460-MAH54Mb 460 W 23.60% -0.290 20.5 kg +40 W, cooler, +2.1 pp
HSM-BD54-LA470 470 W 23.60% -0.260 21.5 kg +50 W, cooler, +2.1 pp
FE54-18X(N)-415W 415 W 21.23% -0.310 21.0 kg -0.2 pp
FE54-18X(N)-425W 425 W 21.74% -0.310 21.0 kg +0.3 pp
FE54-18X(N)-430W 430 W 21.99% -0.310 21.0 kg +10 W, +0.5 pp
FE54-18X(N)-435W 435 W 22.30% -0.310 21.0 kg +15 W, +0.8 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +90 W, cooler, +3.5 pp
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +75 W, cooler, +3.3 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +85 W, cooler, +3.2 pp
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +70 W, cooler, +3.0 pp
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +80 W, cooler, +3.0 pp
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +80 W, cooler, +3.0 pp

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1917 panels of the same or similar size to this one, within ±25 mm. See them here Found 3392 panels of the same or similar size to this one, within ±50 mm. See them here Found 3970 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the power output warranty and degradation rate for the FE54-18X (N) Transparent series?
Fellow Energy backs the FE54-18X (N) Transparent with a 30-year linear power output warranty and an annual degradation rate of just 0.40% — among the lowest in the industry. Standard P-type modules typically degrade at 0.55–0.70% per year. The product (mechanical) warranty covers 15 years. Thanks to N-type cell technology, the series exhibits Zero LID (Light Induced Degradation), preserving full rated power from day one throughout the entire system lifetime.
Are the FE54-18X (N) Transparent modules suitable for commercial rooftop installations?
Yes, the FE54-18X (N) Transparent series is designed for commercial rooftop applications where long-term performance and low operating costs are critical. With a maximum power output of 435 Wp and high-efficiency half-cut cells, the modules maximize energy production on available roof space. The reinforced mechanical structure handles high wind and snow loads, making it well-suited for industrial buildings and warehouses.
What is N-type cell technology in the FE54-18X series and how does it compare to P-type?
N-type cells deliver higher efficiency and significantly lower degradation than conventional P-type cells. The key advantage is the complete absence of LID — FE54-18X modules produce at full rated power from the very first day of operation. The half-cut cell design further reduces resistive losses and improves shade tolerance, resulting in a higher annual energy yield compared to standard P-type PERC modules.
How does the bifacial design of the FE54-18X (N) Transparent panels work in practice?
The transparent backsheet allows the module to capture solar irradiance from both the front and the rear side — reflected from the roof surface, ground, or white membrane beneath the array. This bifacial gain is especially pronounced on light-colored substrates and under diffuse irradiance conditions typical of overcast days. Compared to conventional monofacial modules, effective bifacial operation delivers a measurable increase in annual energy output.
Is Fellow Energy a reliable manufacturer — where is the company based and does it hold Tier 1 status?
Fellow Energy is a Tier 1 PV module manufacturer headquartered in Turkey. Tier 1 status is assigned by independent financial institutions and confirms that the manufacturer is financially stable and capable of honoring long-term warranties. This designation is a standard due-diligence criterion for project financing and insurance underwriting, making Fellow Energy modules eligible for bankable solar projects.
Are the FE54-18X (N) Transparent panels resilient in harsh weather conditions, including winter frost?
Yes. The FE54-18X (N) Transparent series features a reinforced frame designed to withstand extreme wind and snow loads. PID (Potential Induced Degradation) resistance and a favorable temperature coefficient ensure stable output in both high summer temperatures and severe winter frost. Triple EL (electroluminescence) testing during quality control verifies the absence of microcracks in the cells, directly supporting long-term reliability throughout the system's service life.
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