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REC REC395TP5 Black
REC Brand review

REC395TP5 Black

395 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 11,704 of 14,129
Compare panels Datasheet PDF
Power (Wp)
395
Weak · bottom 22%
Efficiency (%)
20.10
Weak · bottom 21%
Density (Wp/m²)
200.0
Weak · bottom 20%
Temp (%/°C)
-0.340
Typical · median -0.300
Weight (kg)
21.6
Typical · median 22.5 kg
Warranty (yrs)
25
Weak · bottom 19%

REC TwinPeak 5 Black Series are advanced photovoltaic modules that redefine performance standards on residential rooftops. Thanks to the use of innovative Twin Design construction, these panels offer exceptional efficiency even in challenging lighting conditions. The unique division of the module into two independent parts ensures that partial shading of one section does not paralyze the operation of the entire panel, effectively solving the problem of power drops in dense urban areas. This series stands out with its elegant Full Black design, which blends perfectly with modern architecture by eliminating visible silver structural elements. REC engineers have utilized a reinforced frame structure with additional cross-supports, guaranteeing the highest resistance to extreme snow and wind loads. What sets them apart from the competition is Multi-Busbar technology, which optimizes current flow and minimizes energy losses while increasing cell longevity. This solution is dedicated to prosumers whose priority is a low risk of micro-cracks and maximizing yields from limited roof space. By choosing this series, investors receive a premium product combining sophisticated aesthetics with uncompromising technical reliability for years.

Ranking

6,414 panels in the 295-495 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 20.10% 21.28% Weak · bottom 21% 12,187
Power density 200.0 212.5 Weak · bottom 20% 12,318
Temperature coefficient -0.340 -0.300 Typical 8,846
Weight per kWp 54.7 53.2 Typical 9,159
Performance warranty 25 yrs 30 yrs Weak · bottom 19% 9,912
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

5 positive · 5 caution
Best for

Residential and shaded-installations.

Not ideal for

Owners who want a long output guarantee, roofs where every square metre has to count and tight roof space.

Watch-outs
25 year performance warranty

Bottom 19% of the 295-495 W band, against a median of 30 yrs.

200.0 watts per square metre

Bottom 20% of the 295-495 W band, against a median of 212.5.

20.10% module efficiency

Bottom 21% of the 295-495 W band, against a median of 21.28%.

What owners get
Twin Design reduces shading losses

Splitting the module into two independent sections with 132 half-cut cells means partial shading of one half does not disable the entire panel, limiting power drops typical of dense urban rooftops.

Extendable warranty up to 25 years (ProTrust)

The standard product warranty is 20 years, but through the REC ProTrust program it can be extended to 25 years for product, performance, and labor combined - a coverage level rarely matched even among tier-1 manufacturers.

Low power degradation - 86% at year 25

A guaranteed annual degradation rate of 0.5% means the panel retains at least 86% of nameplate power in its 25th year of operation, outperforming the typical 80.2-84.8% offered by competing PERC-based products.

Reinforced frame for snow and wind loads

Additional cross-bracing in the frame structure increases mechanical strength, which matters for installations in regions with heavy snow loads or high wind exposure.

Tier-1 manufacturer with 30 years of track record

REC has operated since 1996 and is classified as a tier-1 bankable manufacturer, which eases project financing and increases confidence in long-term warranty servicing.

Trade-offs
Efficiency below peer comparables at equal power

At the maximum 405 Wp rating, REC TwinPeak 5 Black Series efficiency tops out at 20.6%, while competing 405 Wp modules - EGing STAR SERIES and VSUN405-108BMH-DG - reach 20.74%, and Goldi Solar GS10-M108-BF reaches 20.66%. This means a slightly larger roof area is needed for the same installed capacity.

No bifacial variant available

The series is monofacial only (is_bifacial: false), while comparable competitor Goldi Solar GS10-M108-BF offers a bifacial (BF) variant at the same 405 Wp rating, providing additional energy yield from reflected light on light-colored surfaces.

Notes from the database
  • Module efficiency of 20.1% is 1.7pp below average for database panels (median: 21.8%)
  • Power density of 200.0 W/m² is 18.1 W/m² below database median (218.1 W/m²) - needs more roof space
  • At -0.34%/°C, loses 0.04pp more power per degree than database median (-0.30%/°C)
  • 21.6 kg weight - 4.9 kg lighter than database median (26.5 kg), reducing installation effort
  • #12187 for efficiency, #8846 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 395 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.10 % Weak Segment median 21.28%
Vmpp · Impp 37.20 V · 10.62 A Operating point at max power
Voc · Isc 44.90 V · 11.35 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1899×1040×30 mm · 1.97 m² of roof
Weight 21.6 kg Typical Typical · median 22.5 kg
Cells 132 Monocrystalline
Coefficient Pmax -0.340 %/°C Typical median -0.300 of its segment
Coefficient Voc · Isc -0.260 · 0.040 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 20 years Hardware defects only
Performance warranty 25 years Weak bottom 19% · median 30 yrs
End-of-warranty output 86.0 % Equals 330 W guaranteed
Degradation 2.00 → 0.50 % 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
-

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

Heat losses
-0.340 %/°C against a segment median of -0.300
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
REC REC395TP5 Black 395 W 20.10% -0.340 21.6 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg Cooler, +3.0 pp, +5 yr warranty
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +2.9 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +2.9 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +2.9 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +2.9 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +2.9 pp, +5 yr warranty
JT440SYK(B) 440 W 22.90% -0.240 23.0 kg Cooler, +2.8 pp, +5 yr warranty
LX-440M/182-108+ 440 W 22.86% -0.300 21.5 kg +45 W, cooler, +2.8 pp
REC390NP3 Black 390 W 19.50% -0.340 21.8 kg -0.6 pp
REC400NP3 Black 400 W 20.30% -0.340 21.8 kg Very close match
REC405TP5 Black 405 W 20.60% -0.340 21.6 kg +10 W, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +115 W, cooler, +4.9 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg +165 W, cooler, +4.7 pp
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +110 W, cooler, +4.6 pp
WST-505BKX54-A2 505 W 24.70% -0.260 25.0 kg +110 W, cooler, +4.6 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg +160 W, cooler, +4.5 pp

Found 12 panels of the same or similar size to this one, within ±10 mm. See them here Found 55 panels of the same or similar size to this one, within ±25 mm. See them here Found 113 panels of the same or similar size to this one, within ±50 mm. See them here Found 2040 panels of the same or similar size to this one, within ±100 mm. See them here

About the REC TwinPeak 5 Black Series series

6 answered

These answers cover the whole series. Where a figure differs, the specification above is this module's own.

How does Twin Design technology in the REC TwinPeak 5 Black panels help with partial shading?
Twin Design splits the module into two independent electrical sections connected in parallel. If a chimney or dormer shades one half, the other keeps producing at full power, avoiding the weakest-link effect that cripples conventional modules. Combined with 132 half-cut cells, this significantly reduces energy losses in real-world urban rooftop conditions.
What warranties does the REC TwinPeak 5 Black Series come with?
REC provides a 20-year product warranty and a 25-year performance warranty. After 25 years, the module must retain at least 86% of its rated power. Degradation is capped at 2% in year one and 0.5% per year thereafter, which is better than the typical industry standard for most competing PERC modules.
How is the REC TwinPeak 5 Black visually different from the standard version, and does it affect installation cost?
The Black version features a black frame, black backsheet, and black cells with no visible silver elements. On a dark roof it is nearly invisible, which architects and premium residential clients value. Installation cost is comparable to the standard variant; the only meaningful difference is a slightly higher module price for the all-black aesthetic.
What is the temperature coefficient of the REC TwinPeak 5 Black and how much power does it lose in summer heat?
The temperature coefficient of Pmax is -0.34%/°C. At a cell temperature of 45°C, typical for Central European summers, the module produces approximately 93% of its rated power. This outperforms many competing PERC panels rated at -0.38 to -0.40%/°C, resulting in measurably lower summer power losses under identical irradiance conditions.
What snow and wind loads can the REC TwinPeak 5 Black Series withstand?
The reinforced 30 mm frame with extra cross-support bars is rated for loads up to 7,000 Pa. This significantly exceeds the requirements for Central European climatic zones under EN 1991, where pitched roofs are typically rated at 2,400-4,000 Pa, making the panel well-suited for regions with heavy snowfall and high wind exposure.
Does the Multi-Busbar technology in the REC TwinPeak 5 Black Series actually improve long-term module reliability?
Yes. Multi-Busbar distributes current across more, thinner conductors than conventional 3-4 busbar designs. The reduced mechanical stress at each solder joint significantly lowers the risk of micro-cracks in the cells, which are the leading cause of long-term panel degradation. The result is lower power loss and better real-world performance over a 25-year lifespan.
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