Skip to main content
Techwise Solar TW-595HT
Techwise Solar Brand review

TW-595HT

595 Wp TOPCon
ComparePV verdict

Middle of its segment, needs the roof space

Rank 6,661 of 14,005
Compare panels Datasheet PDF
Power (Wp)
595
Strong · top 5%
Efficiency (%)
21.02
Weak · bottom 2%
Density (Wp/m²)
210.2
Weak · bottom 2%
Temp (%/°C)
-0.340
Weak · bottom 5%
Weight (kg)
29.9
Typical · median 31.2 kg
Warranty (yrs)
25
Weak · bottom 5%

The Techwise Solar Summit Series is designed for installations where maximizing energy yield from a limited area and ensuring stable performance over many years are paramount. The modules in this series utilize a half-cut architecture, which minimizes internal losses and improves panel performance under partial shading - a crucial factor in installations with features such as chimneys, skylights, or HVAC systems. Depending on the variant, bifacial options are available, allowing for the recovery of additional energy from reflected light from the ground, which is particularly beneficial for ground-mounted and flat-roof projects. The use of a multi busbar multi-contact technology promotes better current collection and increases resistance to micro-cracks during daily operation and transportation. The Summit Series also emphasizes optimal performance at high temperatures and under less direct sunlight, which is relevant in the Polish climate. This makes it a suitable choice for installers, investors in commercial and industrial (C&I) projects, and PV farms who expect predictable results and the flexibility to choose modules that fit their project requirements.

Ranking

1,018 panels in the segment TOPCon 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.02% 22.44% Weak · bottom 2% 9,696
Power density 210.2 224.4 Weak · bottom 2% 9,670
Temperature coefficient -0.340 -0.290 Weak · bottom 5% 8,778
Weight per kWp 50.3 53.8 Typical 3,691
Performance warranty 25 yrs 30 yrs Weak · bottom 5% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

0 positive · 3 caution
Best for

Commercial, utility-scale, shaded-installations and hot-climate.

Not ideal for

Roofs where every square metre has to count, tight roof space and hot climates.

Watch-outs
210.2 watts per square metre

Bottom 2% of the TOPCon 550-600 W segment, against a median of 224.4. Ranked 9,670th in the whole database.

21.02% module efficiency

Bottom 2% of the TOPCon 550-600 W segment, against a median of 22.44%. Ranked 9,696th in the whole database.

-0.340 %/°C temperature coefficient

Bottom 5% of the TOPCon 550-600 W segment, against a median of -0.290. Ranked 8,778th in the whole database.

Notes from the database
  • At 21.0% efficiency, this panel is 1.4pp below the TOPCon 550-600W median of 22.4%
  • 210.2 W/m² power density is 14.2 W/m² below TOPCon 550-600W median (224.4 W/m²) - requires larger installation area
  • At -0.34%/°C, loses 0.05pp more power per degree than TOPCon 550-600W median (-0.29%/°C)
  • 29.9 kg weight - 1.3 kg lighter than TOPCon 550-600W median (31.2 kg), reducing installation effort
  • In the top 69% for efficiency among all TOPCon panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 595 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.02 % Weak Segment median 22.44%
Vmpp · Impp 34.20 V · 17.40 A Operating point at max power
Voc · Isc 41.30 V · 18.45 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2172×1303×35 mm · 2.83 m² of roof
Weight 29.9 kg Typical Typical · median 31.2 kg
Cells 120 · TOPCon Monocrystalline
Coefficient Pmax -0.340 %/°C Weak bottom 5% of its segment
Coefficient Voc · Isc -0.260 · 0.050 %/°C
NOCT 44 °C At 800 W/m², 20 °C ambient
Product warranty 12 years Hardware defects only
Performance warranty 25 years Weak bottom 5% · median 30 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
-0.340 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Techwise Solar TW-595HT 595 W 21.02% -0.340 29.9 kg You are here
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg +50 W, cooler, +4.0 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, +3.8 pp, +5 yr warranty
AIKO-A640-MAE72Mw 640 W 24.80% -0.260 27.0 kg Cooler, +3.8 pp, +5 yr warranty
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, +3.6 pp, +5 yr warranty
AIKO-A635-MAE72Mw 635 W 24.60% -0.260 27.0 kg Cooler, +3.6 pp, +5 yr warranty
TW-590HT 590 W 20.85% -0.340 29.9 kg Very close match
TW-600HT 600 W 21.20% -0.340 29.9 kg Very close match
TW-605HT 605 W 21.38% -0.340 29.9 kg +10 W, +0.4 pp
TW-610HT 610 W 21.55% -0.340 29.9 kg +15 W, +0.5 pp
GKA210N120 680 W 24.03% -0.340 28.0 kg +85 W, +3.0 pp, +5 yr warranty
GKA210N120-675 675 W 23.85% -0.340 28.0 kg +80 W, +2.8 pp, +5 yr warranty
QN-670HJT-01 670 W 23.70% -0.240 35.5 kg +75 W, cooler, +2.7 pp
GKA210N120-670 670 W 23.67% -0.340 28.0 kg +75 W, +2.7 pp, +5 yr warranty
QN-665HJT-01 665 W 23.50% -0.240 35.5 kg +70 W, cooler, +2.5 pp
GKA210N120-665 665 W 23.50% -0.340 28.0 kg +70 W, +2.5 pp, +5 yr warranty
SPDG660-N120M12 660 W 23.32% -0.300 34.2 kg +65 W, +2.3 pp, +5 yr warranty

Found 497 panels of the same or similar size to this one, within ±10 mm. See them here Found 502 panels of the same or similar size to this one, within ±25 mm. See them here Found 502 panels of the same or similar size to this one, within ±50 mm. See them here Found 506 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What is the maximum power output of the Techwise Solar Summit Series panel?
Summit Series modules reach a maximum power output of up to 670 Wp. This high unit power means fewer panels are needed to reach a target system size, reducing mounting structure costs and installation time, especially on large rooftop and ground-mount projects.
What warranty does Techwise Solar offer on the Summit Series?
The manufacturer provides a 12-year product warranty and a 25-year power performance warranty. This means the module is expected to maintain its rated energy output for over two decades, which is an important factor when calculating the return on investment of a PV installation.
What is TOPCon technology in the Summit Series and is it better than PERC?
TOPCon (Tunnel Oxide Passivated Contact) is a newer generation of silicon cell technology that reduces carrier recombination through an additional passivation layer. In practice this results in higher module efficiency and better performance at high temperatures compared to older PERC technology, which matters during hot Polish summers.
Are Summit Series panels suitable for roofs with chimneys or dormers?
Yes, thanks to the half-cut architecture the module is split into smaller cell sections, so partial shading from a chimney, antenna, or dormer causes a smaller drop in output than with conventional full-cell panels. This design reduces the impact of typical roof obstructions on overall system yield.
Is the Summit Series a bifacial panel?
No, in this described configuration the Summit Series operates as a monofacial (one-sided) panel rather than bifacial. It's worth checking the specific model within the line, as the manufacturer also offers bifacial variants of this series in other configurations, intended for example for ground-mount installations.
How does multi busbar technology in the Summit Series differ from standard panels?
Multi busbar means a higher number of thin current-collecting ribbons on the cell surface compared to classic 3-4 busbar designs. This results in more even current collection, lower risk of microcracks during transport and operation, and better mechanical resistance to loads such as wind and snow.
Add to compare