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Sun Earth Brand review

SKT390M10

390 Wp BIPV
ComparePV verdict

Middle of its segment, short guarantee

Rank 12,418 of 14,005
Compare panels Datasheet PDF
Power (Wp)
390
Weak · bottom 20%
Efficiency (%)
19.97
Weak · bottom 19%
Density (Wp/m²)
199.7
Weak · bottom 20%
Temp (%/°C)
-0.290
Typical · median -0.300
Weight (kg)
20.5
Typical · median 22.3 kg
Warranty (yrs)
25
Weak · bottom 19%

The Sun Earth 182 mm 108 Cell Terracotta N-Type Mono Half Cell (BIPV) series is designed for integration with buildings - where both energy generation and a consistent aesthetic for the facade or roof are important. It is distinguished by its terracotta finish, which makes it easy to match to architecture (e.g., residential buildings, premium properties, conservation areas), without the "black sheet" effect typical of standard panels.

The use of N-type cells and half-cell technology ensures stable operation in real conditions, even with partial shading and uneven sunlight exposure, which is common on roofs with dormers, chimneys, or in terraced housing. The BIPV design in the glass-glass variant improves resistance to weather conditions and makes the module suitable for use as a partition wall.

This is a solution for investors who want to avoid compromising between appearance and functionality and are looking for building-integrated photovoltaics that stand out from traditional modules mounted on frames.

Ranking

6,208 panels in the 290-490 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 19.97% 21.26% Weak · bottom 19% 12,302
Power density 199.7 212.5 Weak · bottom 20% 12,255
Temperature coefficient -0.290 -0.300 Typical 2,165
Weight per kWp 52.6 53.3 Typical 6,190
Performance warranty 25 yrs 30 yrs Weak · bottom 19% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Residential, BIPV and shaded-installations.

Not ideal for

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

Watch-outs
25 year performance warranty

Bottom 19% of the 290-490 W band, against a median of 30 yrs.

19.97% module efficiency

Bottom 19% of the 290-490 W band, against a median of 21.26%.

199.7 watts per square metre

Bottom 20% of the 290-490 W band, against a median of 212.5.

Notes from the database
  • 20.0% module efficiency - 1.5pp better than the BIPV 0-400W median of 18.4%
  • Power density of 199.7 W/m² packs 15.3 W/m² more into the same footprint vs BIPV 0-400W median (184.4 W/m²)
  • -0.29%/°C temperature coefficient (median: -0.35%/°C) - retains ~2% more power at high temperatures
  • #12302 for efficiency, #2165 for temperature performance out of 14005 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 390 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 19.97 % Weak Segment median 21.26%
Vmpp · Impp 32.15 V · 12.19 A Operating point at max power
Voc · Isc 38.12 V · 12.46 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1722×1134×30 mm · 1.95 m² of roof
Weight 20.5 kg Typical Typical · median 22.3 kg
Cells 108 · BIPV Monocrystalline
Coefficient Pmax -0.290 %/°C Typical median -0.300 of its segment
Coefficient Voc · Isc -0.250 · 0.045 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 19% · median 30 yrs
End-of-warranty output 89.4 % Equals 341 W guaranteed

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
-0.290 %/°C against a segment median of -0.300
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Sun Earth SKT390M10 390 W 19.97% -0.290 20.5 kg You are here
LX-440M/182-108+GG 440 W 23.07% -0.240 23.6 kg +50 W, +3.1 pp, +5 yr warranty
GKA210M340W 340 W 23.00% - 16.2 kg -50 W, +3.0 pp, +5 yr warranty
GKA210M360W 360 W 23.00% - 16.2 kg Lighter, +3.0 pp, +5 yr warranty
GKA210M380W (1/4*4*38) 380 W 23.00% - 17.1 kg Lighter, +3.0 pp, +5 yr warranty
GKA210M400W (1/2*4*20) 400 W 23.00% - 18.0 kg Lighter, +3.0 pp, +5 yr warranty
GKA210M400W (1/4*4*40) 400 W 23.00% - 18.0 kg Lighter, +3.0 pp, +5 yr warranty
GKA210M380W (1/2*4*19) 380 W 23.00% - 17.1 kg Lighter, +3.0 pp, +5 yr warranty
JT440SYK(B) 440 W 22.90% -0.240 23.0 kg +50 W, +2.9 pp, +5 yr warranty
DXM8-54HBG-420 420 W 21.50% -0.290 24.5 kg Heavier, +1.5 pp, +15 yr warranty
DXM8-54HBG-430 430 W 22.00% -0.290 24.5 kg +40 W, +2.0 pp, +15 yr warranty
DXM8-54HBG-435 435 W 22.30% -0.290 24.5 kg +45 W, +2.3 pp, +15 yr warranty
DXM8-54HBG-440 440 W 22.50% -0.290 24.5 kg +50 W, +2.5 pp, +15 yr warranty
DXM8-54HBG-450 450 W 23.00% -0.290 24.5 kg +60 W, +3.0 pp, +15 yr warranty
DXM8-54HBG-455 455 W 23.30% -0.290 24.5 kg +65 W, +3.3 pp, +15 yr warranty
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +120 W, +5.0 pp, +5 yr warranty
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +105 W, +4.8 pp, +5 yr warranty

Found 1783 panels of the same or similar size to this one, within ±10 mm. See them here Found 1914 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
How do Sun Earth Terracotta N-Type BIPV panels differ from standard black PV modules?
The main difference is the terracotta surface finish, which mimics traditional roof tile or ceramic cladding — eliminating the black-panel effect typical of conventional modules. Beyond aesthetics, the glass-glass construction allows the module to serve as a structural building element (roof or facade), not just an add-on overlay. This is a true BIPV solution designed for architectural integration in residential, premium, and heritage-protected projects.
What warranty does the Sun Earth 182 mm 108 Cells Terracotta BIPV series come with?
Sun Earth provides a 12-year product warranty covering material and manufacturing defects, plus a 25-year linear power output warranty. This means the module is guaranteed to maintain a minimum rated efficiency for a quarter of a century. When sizing the system, it is advisable to pair these panels with an inverter carrying a comparable warranty period to ensure full long-term system coverage.
Will the Sun Earth Terracotta series perform well on a roof with dormers, chimneys, or other shading obstacles?
Yes. The combination of N-type mono cells and half-cut cell technology (108 cells split into two independent strings) significantly reduces power losses under partial shading — a shaded section does not fully block the rest of the module. This is a key advantage for residential roof installations with dormers, chimneys, or antennas, where uniform irradiance across every panel is rarely achievable.
What is the peak power of the Sun Earth 182 mm 108 Cells Terracotta module and how many panels does a typical home need?
Peak power is 390 Wp per module. A typical household consuming 3,500–5,000 kWh per year generally requires 8–14 modules (a 3–5.5 kWp system). The exact number depends on location, roof orientation, and tilt angle. A certified installer should perform a site-specific energy analysis to determine the optimal system size.
Can Sun Earth Terracotta BIPV modules be used as a facade element rather than just a roof covering?
Yes. The glass-glass construction makes this series well suited for ventilated facade cladding or structural glazing applications. The front and rear glass laminates form a rigid, weatherproof panel resistant to moisture and mechanical stress. This is the essence of BIPV — the module simultaneously functions as a building material and a power generator, making it particularly attractive for premium developments and architecturally sensitive sites.
Do the N-type cells in the Sun Earth Terracotta series offer real advantages over older PERC technology?
N-type cells feature a lower temperature coefficient (smaller power loss at elevated module temperatures) and greater resistance to light-induced degradation (LID/LeTID) compared to PERC. In practice, this means more stable output during summer and slower long-term power degradation. For BIPV modules installed in roof apertures where airflow and cooling are limited, reduced thermal losses are a particularly meaningful benefit over the 25-year power warranty period.
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