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HT-SAAE Brand review

HT72-18X-550W

550 Wp PERC
ComparePV verdict

Strong in heat, short guarantee

Rank 5,197 of 14,005
Compare panels Datasheet PDF
Power (Wp)
550
Weak · bottom 15%
Efficiency (%)
21.30
Typical · median 21.29%
Density (Wp/m²)
212.8
Typical · median 212.9
Temp (%/°C)
-0.330
Strong · top 7%
Weight (kg)
28.5
Typical · median 30.8 kg
Warranty (yrs)
25
Weak · bottom 24%

The HT72-18X series is based on M10 monocrystalline cells with a 182 mm side, which allows for achieving high efficiency while reducing installation and logistics costs. The use of advanced Multi-Busbar technology significantly shortens the electron flow path, which not only increases power output but also improves the module's reliability by reducing the risk of hot spots. These panels effectively solve the problem of limited installation space, offering high energy yields even with fewer units. Thanks to the use of half-cut cells, the HT72-18X series demonstrates excellent shading tolerance, making it an ideal choice for demanding commercial installations and large-scale photovoltaic farms. What sets these modules apart from the competition is their design adapted for operation in harsh environments, characterized by increased resistance to potential-induced degradation (PID) and high mechanical resistance to wind pressure and snow loads. Investing in this series ensures long-term performance, backed by the manufacturer's experience in creating components for the space sector, which translates into a stable return on investment in the Polish climate.

Ranking

589 panels in the segment PERC 550-600 W
Metric This panel Median Position in segment Overall rank
Module efficiency 21.30% 21.29% Typical 8,519
Power density 212.8 212.9 Typical 8,643
Temperature coefficient -0.330 -0.350 Strong · top 7% 8,545
Weight per kWp 51.8 52.7 Typical 5,204
Performance warranty 25 yrs 27 yrs Weak · bottom 24% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Signals from the data

6 positive · 3 caution
Best for

Commercial, utility-scale and shaded-installations.

Not ideal for

Owners who want a long output guarantee.

Strengths
-0.330 %/°C temperature coefficient

Top 7% of the PERC 550-600 W segment, against a median of -0.350. Ranked 8,545th in the whole database.

Watch-outs
25 year performance warranty

Bottom 24% of the PERC 550-600 W segment, against a median of 27 yrs.

What owners get
PVEL Top Performer 2024 – All 7 Test Sequences

The series passed all seven PVEL reliability test sequences (PV Top Performers List 2024): thermal cycling, damp heat, mechanical stress, hail sequence, PID, LID+LETID, and PAN performance. This is one of the most rigorous industry benchmarks — the vast majority of manufacturers fail to achieve a clean sweep across all seven tests.

Aerospace Heritage and Manufacturing Quality

HT-SAAE traces its origins to China's space program (satellites since 1960). Full automation of production lines eliminates human error, and quality control standards inherited from the aerospace industry translate into above-average parameter uniformity across production batches.

Peak Efficiency of 21.7% – Top-Tier Competitive

The highest-output variant of the series achieves 21.7% efficiency, matching direct competitors such as the Exiom EX560M (21.7%) and Premier Energies 144HC (21.67%). The entry-level variant (20.9%) is the only area of gap relative to the DAH Solar DHM-T72X10/BF/FS (21.72%), which is, however, a bifacial module.

Multi-Busbar + Half-Cut M10 – Reduced Hot-Spot Risk

The 144 half-cut cell configuration (182 mm / M10) combined with multi-busbar technology shortens electron current paths, reduces series resistance, and lowers thermal stress at interconnection points. The practical result is improved tolerance to partial shading and a reduced risk of hot-spot formation over the long term.

Enhanced PID Resistance

The series is certified for resistance to potential-induced degradation (PID), which is critical for 1500 V DC systems typical of commercial and utility-scale PV installations — the HT72-18X system voltage is rated at exactly 1500 V DC (IEC).

Trade-offs
PERC Technology – Not TOPCon

In 2025–2026, the utility-scale market is transitioning to N-type cells (TOPCon, HJT). PERC exhibits an annual degradation rate of 0.6–0.8%, whereas TOPCon achieves 0.4–0.5% (source: 2024–2025 industry benchmarks). Over a 25-year investment horizon, the difference in cumulative energy yield can amount to 3–6 percentage points of residual power output.

Monofacial Module – No Bifacial Option

The HT72-18X series is monofacial, whereas the direct competitor DAH Solar DHM-T72X10/BF/FS offers a bifacial variant at a comparable front-side efficiency (21.72%). On typical ground-mounted installations with light-colored surfaces, bifaciality delivers a real-world 5–15% additional annual energy yield from albedo gain.

Notes from the database
  • At 21.3% efficiency, this panel is on par with typical PERC 550-600W modules
  • At 212.8 W/m² power density, roof space requirements are typical for PERC 550-600W panels
  • At -0.33%/°C, hot weather performance is typical for PERC 550-600W panels
  • 28.5 kg weight - 2.3 kg lighter than PERC 550-600W median (30.8 kg), reducing installation effort
  • Ranked #8519 out of 14005 panels for efficiency in the database

Specifications

Open datasheet PDF
Nominal power (Pmax) 550 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 21.30 % Typical Segment median 21.29%
Vmpp · Impp 41.95 V · 13.12 A Operating point at max power
Voc · Isc 49.80 V · 14.00 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 2279×1134×35 mm · 2.58 m² of roof
Weight 28.5 kg Typical Typical · median 30.8 kg
Cells 144 · PERC Monocrystalline
Coefficient Pmax -0.330 %/°C Strong top 7% of its segment
Coefficient Voc · Isc -0.260 · 0.042 %/°C
Product warranty 25 years Hardware defects only
Performance warranty 25 years Weak bottom 24% · median 27 yrs
End-of-warranty output 83.1 % Equals 441 W guaranteed
Degradation 2.50 → 0.60 % 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
-0.330 %/°C against a segment median of -0.350
-

Alternatives

All HT-SAAE panels
Filter these
Size
Panel Power Eff. Temp. Weight Difference
HT-SAAE HT72-18X-550W 550 W 21.30% -0.330 28.5 kg You are here
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg Cooler, lighter, +3.7 pp
LR7-60HVH-560M 560 W 24.80% -0.260 25.0 kg Cooler, +3.5 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg Cooler, lighter, +3.4 pp
LR7-60HVH-555M 555 W 24.60% -0.260 25.0 kg Cooler, +3.3 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg -50 W, cooler, +3.2 pp
HT40-18X(ND)-310W 310 W 12.10% -0.310 35.5 kg -240 W, heavier, -9.2 pp
HT40-18X(ND)-F-310W 310 W 12.00% -0.310 32.5 kg -240 W, -9.3 pp, +5 yr warranty
HT40-18X(ND)-315W 315 W 12.30% -0.310 35.5 kg -235 W, heavier, -9.0 pp
HT40-18X(ND)-F-315W 315 W 12.20% -0.310 32.5 kg -235 W, -9.1 pp, +5 yr warranty
HT40-18X(ND)-320W 320 W 12.50% -0.310 35.5 kg -230 W, heavier, -8.8 pp
HT40-18X(ND)-F-320W 320 W 12.40% -0.310 32.5 kg -230 W, -8.9 pp, +5 yr warranty
HT40-18X(ND)-325W 325 W 12.70% -0.310 35.5 kg -225 W, heavier, -8.6 pp
HT40-18X(ND)-F-325W 325 W 12.60% -0.310 32.5 kg -225 W, -8.7 pp, +5 yr warranty
HT40-18X(ND)-330W 330 W 12.90% -0.310 35.5 kg -220 W, heavier, -8.4 pp
HT40-18X(ND)-F-330W 330 W 12.80% -0.310 32.5 kg -220 W, -8.5 pp, +5 yr warranty
AIKO-A650-MAE72Mw 650 W 25.20% -0.260 27.0 kg +100 W, cooler, +3.9 pp

Found 2326 panels of the same or similar size to this one, within ±10 mm. See them here Found 2368 panels of the same or similar size to this one, within ±25 mm. See them here Found 2382 panels of the same or similar size to this one, within ±50 mm. See them here Found 2542 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What makes the Multi-Busbar technology in the HT72-18X series stand out, and does it actually increase power output?
The Multi-Busbar (MBB) design in the HT72-18X series places multiple thin conductive strips across each M10 monocrystalline PERC cell (182 mm). This shortens the current path, reducing resistive losses and the risk of hot spots. In practice, it delivers higher output power — up to 560 W per module — and improves long-term cell reliability compared to conventional 4–6 busbar panels.
How does the half-cut cell design affect HT72-18X performance when a chimney or antenna partially shades the panel?
Half-cut cells split each PERC cell into two smaller units, halving the power loss in any shaded row. The HT72-18X uses 144 half-cut cells wired as two independent electrical circuits. Even when part of the module is shaded by a chimney, antenna, or tree branch, the unshaded circuit continues operating at full capacity — significantly improving annual energy yield on demanding rooftop installations.
What warranty does HT-SAAE provide on the HT72-18X series and what exactly does it cover?
HT-SAAE backs the HT72-18X series with a 25-year product warranty covering material and manufacturing defects, alongside a 25-year linear power warranty guaranteeing at least 83.1% of rated power output at the end of the warranty period. This is consistent with Tier 1 manufacturer standards and provides a reliable basis for calculating return on investment.
Will HT-SAAE HT72-18X panels perform reliably in harsh conditions — frost, heavy snow, and strong winds?
Yes, the HT72-18X series is engineered for demanding climates. The modules operate across a -40°C to +85°C temperature range, are rated for high wind and snow mechanical loads, and feature enhanced resistance to potential-induced degradation (PID). As a Tier 1 manufacturer with a background in aerospace component production, HT-SAAE delivers consistent durability in variable climates.
Is the HT72-18X a monofacial or bifacial module, and what does that mean when choosing an installation site?
The HT72-18X is a monofacial module, meaning power is generated solely from the front-side PERC cells. Unlike bifacial panels, it does not require a high-albedo ground surface (such as light gravel or concrete) or elevated racking to capture rear-side irradiance. This makes it simpler to install and more cost-effective for standard rooftop and ground-mount systems without additional design requirements.
Are HT72-18X panels rated at 560 W suitable for large commercial rooftops and utility-scale solar farms?
Yes, the HT72-18X series — delivering up to 560 W per module at up to 21.7% module efficiency — is designed for commercial and utility-scale PV projects. The M10 cell format (182 mm) reduces module count and balance-of-system (BoS) costs per MW of installed capacity. At 2279×1134×35 mm and 28.5 kg, the modules are well-suited for large-scale logistics and installation workflows.
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