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Techwise Solar TW-330MM
Techwise Solar Brand review

TW-330MM

330 Wp Monocrystalline
ComparePV verdict

Middle of its segment, short guarantee

Rank 13,062 of 14,005
Compare panels Datasheet PDF
Power (Wp)
330
Weak · bottom 17%
Efficiency (%)
20.28
Typical · median 20.30%
Density (Wp/m²)
202.8
Typical · median 202.8
Temp (%/°C)
-0.400
Weak · bottom 6%
Weight (kg)
18.7
Typical · median 21.2 kg
Warranty (yrs)
20
Weak · bottom 1%

The Techwise Solar Micro Sun Series is designed for installations where compact size and flexible power selection are key - from small panels for mobile applications to larger modules for lightweight structures. It features monocrystalline cells in configurations suitable for various formats, making it easy to install on campers, boats, patios, in off-grid systems, and as backup power.

A key feature is a wide range of sizes, as well as a design focused on practical durability in everyday use. The modules utilize single glass, and in some variants, you'll find half-cell architecture, which helps to minimize losses in partially shaded conditions and stabilize performance in less ideal environments. The Micro Sun Series solves the problem of limited space and difficult mounting surfaces, providing predictable performance in small systems and easy scalability.

It's a good choice for users who need panels for custom, service, and mobile installations - where standard roof-mounted modules are simply too large or impractical.

Ranking

3,085 panels in the 230-430 W band, all technologies
Metric This panel Median Position in segment Overall rank
Module efficiency 20.28% 20.30% Typical 11,853
Power density 202.8 202.8 Typical 11,796
Temperature coefficient -0.400 -0.350 Weak · bottom 6% 13,674
Weight per kWp 56.7 55.7 Typical 10,792
Performance warranty 20 yrs 25 yrs Weak · bottom 1% 13,796
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 2 caution
Best for

Off-grid and shaded-installations.

Not ideal for

Owners who want a long output guarantee and hot climates.

Watch-outs
20 year performance warranty

Bottom 1% of the 230-430 W band, against a median of 25 yrs. Ranked 13,796th in the whole database.

-0.400 %/°C temperature coefficient

Bottom 6% of the 230-430 W band, against a median of -0.350. Ranked 13,674th in the whole database.

Notes from the database
  • Efficiency of 20.3% is 1.5pp below the database median (21.8%)
  • Power density of 202.8 W/m² is 15.3 W/m² below database median (218.1 W/m²) - needs more roof space
  • At -0.40%/°C, loses 0.10pp more power per degree than database median (-0.30%/°C)
  • 18.7 kg weight - 7.8 kg lighter than database median (26.5 kg), reducing installation effort
  • Ranked #11853 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 330 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 20.28 % Typical Segment median 20.30%
Vmpp · Impp 33.65 V · 9.89 A Operating point at max power
Voc · Isc 40.80 V · 10.25 A Sizes the string length
Max system voltage 1000 V Longer strings than 1000 V modules
Dimensions 1640×992×35 mm · 1.63 m² of roof
Weight 18.7 kg Typical Typical · median 21.2 kg
Cells 60 Monocrystalline
Coefficient Pmax -0.400 %/°C Weak bottom 6% of its segment
Coefficient Voc · Isc -0.300 · 0.050 %/°C
Product warranty 10 years Hardware defects only
Performance warranty 20 years Weak bottom 1% · median 25 yrs

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
-0.400 %/°C against a segment median of -0.350
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Techwise Solar TW-330MM 330 W 20.28% -0.400 18.7 kg You are here
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.0 pp
NS-300MH-72 300 W 23.32% -0.290 12.5 kg Cooler, lighter, +3.0 pp
ZEUS 1.2 FullBlack 280W 280 W 23.31% -0.260 14.3 kg Cooler, +3.0 pp, +10 yr warranty
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, +2.9 pp, +5 yr warranty
NS-330MH-80 330 W 23.15% -0.290 15.0 kg Cooler, +2.9 pp, +5 yr warranty
GKA182M285W 285 W 23.00% - 10.8 kg Lighter, +2.7 pp, +10 yr warranty
GKA182M300W 300 W 23.00% - 16.2 kg -30 W, +2.7 pp, +10 yr warranty
GKA210M320W 320 W 23.00% - 16.2 kg Lighter, +2.7 pp, +10 yr warranty
GKA210M340W 340 W 23.00% - 16.2 kg Lighter, +2.7 pp, +10 yr warranty
SPR-MAX3-400-COM 400 W 22.60% -0.270 19.0 kg Cooler, +2.3 pp, +20 yr warranty
LEPV 400 400 W 22.31% -0.290 20.0 kg Cooler, +2.0 pp, +10 yr warranty
NS-360MH-60 360 W 22.12% -0.290 17.0 kg Cooler, +1.8 pp, +5 yr warranty
NS-360MH-60 360 W 22.12% -0.290 17.0 kg Cooler, +1.8 pp, +5 yr warranty
SPR-MAX3-390-COM 390 W 22.10% -0.270 19.0 kg Cooler, +1.8 pp, +20 yr warranty
MB_TG120ByB_390 390 W 21.80% -0.259 24.4 kg Cooler, +1.5 pp, +10 yr warranty
EVPV380 380 W 21.70% -0.260 19.5 kg +50 W, cooler, +1.4 pp

Found 182 panels of the same or similar size to this one, within ±10 mm. See them here Found 218 panels of the same or similar size to this one, within ±25 mm. See them here Found 379 panels of the same or similar size to this one, within ±50 mm. See them here Found 472 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What applications is the Techwise Solar Micro Sun Series suitable for?
Micro Sun Series offers a maximum power output of 330 Wp and is designed for applications where compact size and flexible power selection matter - campers, boats, gazebos, off-grid systems, and backup power. The wide range of available sizes makes it possible to fit a module onto irregular surfaces where a standard rooftop panel simply won't fit.
Does the Micro Sun Series use monocrystalline or polycrystalline cells?
Micro Sun Series is built with monocrystalline silicon cells, which deliver higher efficiency and better energy yield on limited mounting surfaces than polycrystalline cells. This matters most in small mobile installations, where every square centimeter of panel area affects the amount of power generated.
What is half-cell architecture in Micro Sun Series panels, and is it worth choosing?
Half-cell architecture splits standard cells in half, reducing current losses and internal resistance within the module. In practice this means better performance under partial shading - for example, when a camper panel is partly shaded by an antenna or air conditioner. Not every Micro Sun Series variant includes this technology, so it's worth checking the datasheet for the specific model.
What warranty comes with the Techwise Solar Micro Sun Series?
The Micro Sun Series is backed by a 10-year product warranty and a 20-year linear power output warranty. This means the manufacturer guarantees a defined efficiency level throughout two decades of use, which is standard coverage for this class of mobile and niche PV products.
Are Micro Sun Series panels bifacial?
No, Micro Sun Series modules are monofacial and use a single-glass construction. This design is lighter and less costly to produce, which suits mobile and temporary applications well, where weight and price matter more than maximizing yield from reflected light.
Are Micro Sun Series panels suitable for mounting on a camper or boat?
Yes, this is one of the series' primary use cases. Compact dimensions, flexible power ratings, and a design built for irregular, smaller surfaces make Micro Sun Series a good fit for camper roofs, boats, or portable off-grid kits, where standard rooftop modules are too large or impractical.
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