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Hanersun HN21RB-66HT650W
Hanersun Brand review

HN21RB-66HT650W

650 Wp Back Contact Bifacial
ComparePV verdict

Middle of its segment, needs the roof space

Rank 897 of 14,129
Compare panels Datasheet PDF
Power (Wp)
650
Weak · bottom 10%
Efficiency (%)
24.10
Weak · bottom 19%
Density (Wp/m²)
240.6
Weak · bottom 14%
Temp (%/°C)
-0.260
Typical · median -0.260
Weight (kg)
32.5
Typical · median 32.8 kg
Warranty (yrs)
30
Typical · median 30 yrs

The Hitouch 6B series consists of Hanersun photovoltaic modules built around back contact (BC) cell technology, where all electrical contacts are moved to the rear side of the cell. This leaves the front surface free of visible grid lines and busbars, improving light utilization while giving the panel a sleek, uniform appearance - a real advantage for residential rooftop installations and projects where aesthetics matter. The modules use bifacial energy generation, capturing light reflected from the ground to boost energy yield without increasing the footprint of the installation. An optimized electrical design and lower operating current reduce the risk of hot spots and microcracks, resulting in high long-term reliability. The panels are certified for mechanical load resistance and for operation in harsh conditions - salt mist, ammonia, sand, high temperature, and humidity - making them suitable for both rooftop systems and large-scale PV farms. The series is backed by a 15-year product warranty and a 30-year linear power output warranty, supported by Munich RE, positioning Hitouch 6B as a solution for investors seeking low LCOE and stable returns over decades of operation.

Ranking

88 panels in the segment Back Contact 650-700 W
Metric This panel Median Position in segment Overall rank
Module efficiency 24.10% 24.40% Weak · bottom 19% 241
Power density 240.6 244.3 Weak · bottom 14% 255
Temperature coefficient -0.260 -0.260 Typical 515
Weight per kWp 50.0 49.8 Typical 3,329
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

Residential, commercial and utility-scale.

Not ideal for

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

Watch-outs
240.6 watts per square metre

Bottom 14% of the Back Contact 650-700 W segment, against a median of 244.3.

24.10% module efficiency

Bottom 19% of the Back Contact 650-700 W segment, against a median of 24.40%.

What owners get
Back Contact (BC) cell technology

Absence of visible front grid lines and busbars improves light utilization and module aesthetics, yielding efficiency up to 24.8% - clearly above peer comparables in the 670 Wp class (Hiwatt Solar 21.6%, Techwise Solar 21.57%, Resun Solar 21.57%).

High efficiency in the 670 Wp power class

The 23.9-24.8% efficiency range is roughly 3 percentage points higher than comparable models from competitors at the same maximum power rating, meaning a smaller installation footprint for the same energy yield.

Bifacial power generation

Modules capture radiation reflected from the ground, increasing annual energy yield without expanding installation area - particularly valuable in ground-mounted systems over high-albedo surfaces.

30-year linear power warranty backed by Munich RE

The 30-year linear power warranty, backed by reinsurer Munich RE, lowers investor financial risk and favorably impacts LCOE calculations over a multi-decade operating horizon.

Reduced hot-spot and microcrack risk

Optimized electrical design and lower operating current limit thermal degradation risk of the cells, directly supporting long-term reliability in harsh operating conditions (salt mist, ammonia, high humidity).

Trade-offs
No current Tier 1 (BNEF) status

Hanersun achieved BNEF Tier 1 status in Q2 2023 on the strength of its 600W+ technology, but the BNEF list is updated quarterly and the manufacturer's current bankability status is not confirmed (tier_1_bankable: false) - this may complicate financing for large-scale projects requiring continuous Tier 1 listing.

Shorter product warranty than segment leaders

The 15-year product warranty is shorter than the 25-year standard offered by leading N-type/TOPCon manufacturers (e.g., Trina Solar, JinkoSolar), despite matching the 30-year linear power warranty - this may affect the installation's perceived residual value.

Notes from the database
  • At 24.1% efficiency, this panel is on par with typical Back Contact 650-700W modules
  • Power density of 240.6 W/m² is 3.7 W/m² below Back Contact 650-700W median (244.3 W/m²) - needs more roof space
  • At -0.26%/°C, hot weather performance is typical for Back Contact 650-700W panels
  • #241 for efficiency, #515 for temperature performance out of 14129 panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 650 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 24.10 % Weak Segment median 24.40%
Vmpp · Impp 40.98 V · 15.86 A Operating point at max power
Voc · Isc 49.72 V · 16.54 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2382×1134×30 mm · 2.70 m² of roof
Weight 32.5 kg Typical Typical · median 32.8 kg
Cells 132 · Back Contact Monocrystalline
Coefficient Pmax -0.260 %/°C Typical median -0.260 of its segment
Coefficient Voc · Isc -0.200 · 0.050 %/°C
Product warranty 15 years Hardware defects only
Performance warranty 30 years Typical median 30 yrs · median 30 yrs
End-of-warranty output 88.8 % Equals 578 W guaranteed
Degradation 1.00 → 0.35 % 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
-0.260 %/°C against a segment median of -0.260
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Hanersun HN21RB-66HT650W 650 W 24.10% -0.260 32.5 kg You are here
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg Lighter, +1.1 pp
AIKO-A680-MDE72Mw 680 W 25.20% -0.260 29.0 kg +30 W, lighter, +1.1 pp
AIKO-A675-MDE72Mw 675 W 25.00% -0.260 29.0 kg +25 W, lighter, +0.9 pp
AIKO-A645-MAE72Mw 645 W 25.00% -0.260 27.0 kg Lighter, +0.9 pp
AIKO-A700-MAE78Dw 700 W 25.00% -0.260 34.5 kg +50 W, heavier, +0.9 pp
WST-675BKX72-A2 675 W 25.00% -0.260 32.1 kg +25 W, +0.9 pp
AIKO-A695-MAE78Dw 695 W 24.90% -0.260 34.5 kg +45 W, heavier, +0.8 pp
AIKO-G670-MCH72Mw 670 W 24.80% -0.260 28.2 kg +20 W, lighter, +0.7 pp
HN21RN-66HT600W 600 W 22.20% -0.280 32.5 kg -50 W, hotter, -1.9 pp
HN21RN-66HT605W 605 W 22.40% -0.280 32.5 kg -45 W, hotter, -1.7 pp
HN19RN-72HT610W 610 W 22.60% -0.280 33.5 kg -40 W, hotter, -1.5 pp
HN19RN-72HT615W 615 W 22.80% -0.280 33.5 kg -35 W, hotter, -1.3 pp
HN19RN-72HT620W 620 W 23.00% -0.280 33.5 kg -30 W, hotter, -1.1 pp
LR7-72HVHF-670M 670 W 24.80% -0.260 28.5 kg +20 W, lighter, +0.7 pp
JKM650-670N-66QL6-BDV (670W class) 670 W 24.80% -0.260 32.5 kg +20 W, +0.7 pp

Found 1144 panels of the same or similar size to this one, within ±10 mm. See them here Found 1150 panels of the same or similar size to this one, within ±25 mm. See them here Found 1261 panels of the same or similar size to this one, within ±50 mm. See them here Found 1942 panels of the same or similar size to this one, within ±100 mm. See them here

About the Hitouch 6B series

6 answered

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

How does back contact technology in Hanersun Hitouch 6B panels differ from standard cells with visible busbars?
In back contact technology, all electrical connections, including busbars and ribbons, are moved to the rear side of the cell. This gives the front surface a smooth, uniform appearance, improving light utilization and delivering a modern look without visible strips. This is especially valued by installers focused on aesthetics for residential rooftop installations.
Do Hitouch 6B bifacial modules require special mounting?
Hitouch 6B panels generate power on both sides, capturing light reflected off the ground through the rear surface. To fully leverage this bifacial gain, it's best to mount them with some clearance above a reflective surface, such as gravel or a light-colored roof. Standard pitched-roof mounting is also possible, though the additional bifacial yield will be more limited in that setup.
What is the maximum power output of Hanersun Hitouch 6B panels and what installations suit them best?
The Hitouch 6B series reaches up to 670 Wp, reducing the number of modules needed to reach a given system capacity. This high unit power works well both for rooftop installations with limited space and for utility-scale PV farms, where minimizing cost per watt installed is a key factor in overall LCOE.
What warranty comes with Hitouch 6B panels and who backs it?
Hanersun covers the Hitouch 6B series with a 15-year product warranty and a 30-year linear power warranty. As added security, the warranty is backed by insurance from Munich RE, increasing investor confidence that warranty obligations will be honored even if the manufacturer faces financial difficulties over the panel's long operational lifetime.
Are Hitouch 6B panels suitable for harsh climates, such as coastal locations?
Yes, Hitouch 6B modules are certified for resistance to salt mist, ammonia, sand, and operation in high temperature and humidity. This makes them well-suited for coastal installations, agricultural sites exposed to ammonia, or dusty regions, maintaining stable performance despite challenging environmental conditions.
Is Hanersun a tier 1 manufacturer, and is it worth trusting brands outside that list?
Hanersun is not currently listed as a tier 1 manufacturer, a classification based mainly on bank financing scale rather than technology quality. The Hitouch 6B series uses advanced back contact technology and warranties backed by Munich RE, which partly offsets the lack of tier 1 status for investors weighing manufacturer risk.
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