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Longi Solar LR7-54HTH-455M
Longi Solar Brand review

LR7-54HTH-455M

455 Wp N-type
ComparePV verdict

Strong in heat, short guarantee

Rank 9,419 of 14,005
Compare panels Datasheet PDF
Power (Wp)
455
Weak · bottom 22%
Efficiency (%)
22.30
Typical · median 22.52%
Density (Wp/m²)
222.9
Typical · median 225.2
Temp (%/°C)
-0.280
Strong · top 21%
Weight (kg)
21.6
Typical · median 23.7 kg
Warranty (yrs)
25
Weak · bottom 7%

The Longi Solar Hi-MO X6 Explorer LR7-54HTH 455~465M series was designed with the goal of maximizing energy yield from the same rooftop area - particularly in locations where efficiency is crucial within limited spaces. The key feature is the application of rear contact technology (HPBC), which minimizes conductor losses and improves performance in real-world conditions, including when the module operates at higher temperatures or is partially shaded. In practice, this translates to more stable energy production during the summer months and reduced daily fluctuations.

Panels from this series also stand out with low power degradation and positive power tolerance, helping installers and investors plan yields more accurately and balance self-consumption effectively. The design is based on monocrystalline cells in a half-cut configuration, which enhances performance under uneven sunlight exposure.

This is a reliable choice for residential and commercial installations, especially when high efficiency, durability, and an aesthetically pleasing, modern design are priorities.

Ranking

301 panels in the segment N-type 450-500 W
Metric This panel Median Position in segment Overall rank
Module efficiency 22.30% 22.52% Typical 5,100
Power density 222.9 225.2 Typical 5,100
Temperature coefficient -0.280 -0.290 Strong · top 21% 1,309
Weight per kWp 47.5 49.5 Typical 1,700
Performance warranty 25 yrs 30 yrs Weak · bottom 7% 9,798
Colour key Strong - top 25% Typical - middle 50% Weak - bottom 25%

Price offers

1 from shops we track
Shop Country Price Per kWp Stock Offer updated Link to shop
Sklep Soltech Poland 248.59 zł net 546.35 zł/kWp Not stated yesterday Visit shop

Signals from the data

6 positive · 3 caution
Best for

Residential, commercial, shaded-installations and hot-climate.

Not ideal for

Owners who want a long output guarantee.

Strengths
-0.280 %/°C temperature coefficient

Top 21% of the N-type 450-500 W segment, against a median of -0.290.

Watch-outs
25 year performance warranty

Bottom 7% of the N-type 450-500 W segment, against a median of 30 yrs. Ranked 9,798th in the whole database.

What owners get
HPBC technology with no front busbars

Hybrid Passivated Back Contact (HPBC) cells eliminate front-side conducting gridlines, increasing active surface area and reducing resistive losses. This delivers up to 22.8% efficiency, clearly ahead of comparable modules such as Jinko Solar JS182MHC120 (21.48%) and Vikram Solar SOMERA (20.91%).

Low degradation and positive power tolerance

The manufacturer specifies under 1% power loss in year one and only 0.40% annually thereafter, with a positive power tolerance of 0~+3% (no risk of underdelivered batches). This supports precise energy yield forecasting at the design stage.

Tier-1 status and strong bankability

LONGi Solar holds Tier-1 status in the BloombergNEF ranking (confirmed for Q2 2026) and an AAA bankability rating from PV Tech ModuleTech Bankability Ratings for 25 consecutive quarters, easing project financing and long-term warranty backing.

Mature, current-generation product line

The series, launched in 2024, comes from a manufacturer operating since 2000 and is not discontinued, ensuring continuity of parts supply, warranty service, and technical support.

High power in a compact form factor

455-465 Wp output in a standard 54-cell half-cut format makes the series attractive for space-constrained roofs where maximizing yield per module matters.

Trade-offs
Product warranty below 2026 market standard

The 15-year product/workmanship warranty falls short of the current market standard for premium N-type TOPCon/HPBC panels in 2026, where competitors (Jinko Tiger Neo, JA Deep Blue, Trina Vertex S+, Canadian Solar TOPHiKu6) already offer 25-year product warranties paired with 30-year power warranties.

No bifacial variant available

The series is offered only as a monofacial module, while the comparable Luxor Solar ECO LINE TOPCon Glass-Glass Bifacial reaches higher efficiency (23.6%) and captures additional yield from reflected light in ground-mount or high-albedo installations - an option not available in this line.

Notes from the database
  • Efficiency of 22.3% matches the N-type 450-500W median
  • Power density of 222.9 W/m² matches the N-type 450-500W median
  • At -0.28%/°C, hot weather performance is typical for N-type 450-500W panels
  • 21.6 kg weight - 2.1 kg lighter than N-type 450-500W median (23.7 kg), reducing installation effort
  • In the top 36% for efficiency among all N-type panels

Specifications

Open datasheet PDF
Nominal power (Pmax) 455 Wp Nameplate at 1000 W/m², 25 °C
Module efficiency 22.30 % Typical Segment median 22.52%
Vmpp · Impp 32.98 V · 13.80 A Operating point at max power
Voc · Isc 39.15 V · 14.79 A Sizes the string length
Max system voltage 1500 V Longer strings than 1000 V modules
Dimensions 1800×1134×30 mm · 2.04 m² of roof
Weight 21.6 kg Typical Typical · median 23.7 kg
Cells 108 · N-type Monocrystalline
Coefficient Pmax -0.280 %/°C Strong top 21% of its segment
Coefficient Voc · Isc -0.230 · 0.050 %/°C
NOCT 45 °C At 800 W/m², 20 °C ambient
Product warranty 15 years Hardware defects only
Performance warranty 25 years Weak bottom 7% · median 30 yrs
End-of-warranty output 89.4 % Equals 398 W guaranteed
Degradation 1.00 → 0.40 % First year, then annual

Datasheet charts

Open datasheet PDF

Measured curves published by Longi Solar in this model's datasheet. A chart carrying a wattage was measured on that variant alone - only the ones that describe 455 Wp appear here. The rest cover the whole series.

25-Year Power Warranty 25-Year Power Warranty Whole series

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
-0.280 %/°C against a segment median of -0.290
-
Filter these
Size
Panel Power Eff. Temp. Weight Difference
Longi Solar LR7-54HTH-455M 455 W 22.30% -0.280 21.6 kg You are here
AIKO-A495-MCE54Mw 495 W 24.80% -0.260 21.0 kg +40 W, +2.5 pp, +5 yr warranty
LR7-54HJD-505M 505 W 24.70% -0.240 23.5 kg +50 W, +2.4 pp, +5 yr warranty
AIKO-A490-MCE54Mw 490 W 24.50% -0.260 21.0 kg +35 W, +2.2 pp, +5 yr warranty
LR7-54HJD-500M 500 W 24.50% -0.240 23.5 kg +45 W, +2.2 pp, +5 yr warranty
CIPRO-TN9C54M-500W 500 W 24.50% -0.260 21.4 kg +45 W, +2.2 pp, +5 yr warranty
GK-3-54HGb-500M 500 W 24.50% -0.260 21.4 kg +45 W, +2.2 pp, +5 yr warranty
LR7-54HGBB-440M 440 W 21.60% -0.280 23.6 kg Heavier, -0.7 pp, +5 yr warranty
LR7-54HGBB-445M 445 W 21.80% -0.280 23.6 kg Heavier, -0.5 pp, +5 yr warranty
LR7-54HGBB-450M 450 W 22.00% -0.280 23.6 kg Heavier, -0.3 pp, +5 yr warranty
LR7-54HTH-460M 460 W 22.50% -0.280 21.6 kg Very close match
LR7-54HTH-465M 465 W 22.80% -0.280 21.6 kg +10 W, +0.5 pp
LR7-54HJD-510M 510 W 25.00% -0.240 23.5 kg +55 W, +2.7 pp, +5 yr warranty

Found 197 panels of the same or similar size to this one, within ±10 mm. See them here Found 201 panels of the same or similar size to this one, within ±25 mm. See them here Found 1712 panels of the same or similar size to this one, within ±50 mm. See them here Found 4014 panels of the same or similar size to this one, within ±100 mm. See them here

Common questions

6 answered
What warranty comes with the Longi Solar Hi-MO X6 Explorer LR7-54HTH 455~465M panels?
Longi Solar offers a 15-year product warranty (materials and workmanship) and a 25-year linear power warranty for this series. After 25 years, the module is guaranteed to retain at least 89.4% of its rated output. Annual power degradation from year 2 onward is below 0.4%, which outperforms most legacy PERC modules on the market.
What is HPBC technology in the Hi-MO X6 Explorer series and why does it matter?
HPBC (Hybrid Passivated Back Contact) moves all electrode contacts to the rear side of the cell, eliminating front-side busbar shading losses. More light is converted into electricity and resistive losses are reduced. In practice, this means steadier power output on sunny days and smaller performance dips under partial shading or elevated operating temperatures — benefits that directly increase annual energy yield.
Do the Longi Hi-MO X6 Explorer LR7-54HTH 465M panels lose much power on hot summer days?
Thanks to the N-type HPBC cell, the temperature coefficient is just -0.28%/°C — among the lowest in this power class. Conventional PERC panels typically lose around -0.35%/°C. At a module temperature of 65°C (common in a Central European summer), the Hi-MO X6 Explorer loses roughly 11% of rated power versus around 14% for PERC, resulting in meaningfully higher daily energy output.
What is the efficiency of the Longi Hi-MO X6 Explorer LR7-54HTH panels, and how much roof space does a 10 kWp system need?
The modules achieve 22.3%–22.8% efficiency at dimensions of 1800×1134×30 mm and a weight of 21.6 kg. A 10 kWp system using 465 W panels requires 22 modules, covering approximately 44–46 m² of roof area. That is less space than older PERC modules of similar power, which is a clear advantage when usable roof area is limited.
Are the Longi Hi-MO X6 Explorer LR7-54HTH panels suitable for a gable roof with chimneys or dormers?
Yes, this is a strong fit for such conditions. The half-cut cell layout (108 cells) splits each module into two independent electrical halves, so a shadow cast by a chimney or dormer affects only the shaded portion while the rest continues operating at full output. The 21.6 kg weight also makes handling and installation on standard rafter structures straightforward.
Is the Longi Hi-MO X6 Explorer LR7-54HTH 455~465M series still available for purchase?
Yes, the series is actively manufactured and available through distribution channels. Longi Solar is a Tier 1 manufacturer headquartered in China with a well-established logistics network across Europe. Continued production availability means installers and homeowners can easily add more modules to expand an existing system without compatibility concerns.
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