--- title: "Longi Solar LR7-72HVD-630M 630W Solar Panel - Specs & Review | ComparePV" description: "Longi Solar LR7-72HVD-630M 630W solar panel. Specs: 23.30% efficiency, Monocrystalline cells, dimensions, warranty and temperature coefficient." source: "https://comparepv.com/panel/longi-lr7-72hvd-630m" updated: 2026-09-11 --- # Longi Solar LR7-72HVD-630M Strong in heat, no clear weak spot 359 panels in the segment N-type 600-650 W ## Identity - **Manufacturer:** Longi Solar - **Model:** LR7-72HVD-630M - **Series:** Hi-MO X10 Explorer LR7-72HVD 625~645M - **Rated power:** 630 W - **Cell technology:** N-type - **Bifacial:** yes ## How it compares Compared against segment N-type 600-650 W (359 panels). | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Power (Wp) | 630 W | 625 W | Typical | | | Module efficiency | 23.30% | 22.77% | Strong - top 19% | 1,017 | | Power density | 233.2 | 227.7 | Strong - top 18% | 1,003 | | Temperature coefficient | -0.260 | -0.290 | Strong - top 4% | 511 | | Weight (kg) | 33.5 kg | 32.5 kg | Typical | | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Full peer table | Measure | This panel | Segment median | Standing | Rank | | --- | --- | --- | --- | --- | | Module efficiency | 23.30% | 22.77% | Strong - top 19% | 1,017 | | Power density | 233.2 | 227.7 | Strong - top 18% | 1,003 | | Temperature coefficient | -0.260 | -0.290 | Strong - top 4% | 511 | | Weight per kWp | 53.2 | 52.7 | Typical | 6,993 | | Performance warranty | 30 yrs | 30 yrs | Typical | 21 | ### Strengths - **-0.260 %/°C temperature coefficient** - Top 4% of the N-type 600-650 W segment, against a median of -0.290. Ranked 511th in the whole database. - **233.2 watts per square metre** - Top 18% of the N-type 600-650 W segment, against a median of 227.7. - **23.30% module efficiency** - Top 19% of the N-type 600-650 W segment, against a median of 22.77%. - **Best for:** Utility-scale, commercial and shaded-installations. ## Specification ### Electrical - **Rated power (Pmax):** 630 W - **Efficiency:** 23.30 % - **Voltage at Pmax (Vmp):** 44.26 V - **Current at Pmax (Imp):** 14.24 A - **Open-circuit voltage (Voc):** 53.40 V - **Short-circuit current (Isc):** 14.93 A - **Max system voltage:** 1500 V ### Temperature - **Temperature coefficient of Pmax:** -0.260 %/degC - **Temperature coefficient of Voc:** -0.200 %/degC - **Temperature coefficient of Isc:** 0.050 %/degC - **NOCT:** 45 degC ### Cell and construction - **Cell type:** Monocrystalline - **Cell technology:** N-type - **Cell count:** 144 - **Bifacial:** yes ### Physical - **Length:** 2382 mm - **Width:** 1134 mm - **Thickness:** 30 mm - **Weight:** 33.5 kg - **Area:** 2.70 m2 - **Power density:** 233.2 Wp/m2 ### Warranty and degradation - **Product warranty:** 15 years - **Performance warranty:** 30 years - **Output guaranteed at end of warranty:** 88.8 % - **First-year degradation:** 1.00 % - **Annual degradation:** 0.35 % - **Output after 30 years:** 560 W ## Rank in the whole catalogue | Measure | Position | | --- | --- | | Efficiency | 1017 of 14005 | | Power density | 1003 of 14005 | | Temperature coefficient | 511 of 14005 | | Weight | 6993 of 14005 | | Warranty | 21 of 14005 | ## Pros - **Back contact architecture (HPBC 2.0)** - Moving the contacts to the rear of the cell eliminates visible grid lines and busbars from the front surface, increasing active area and improving yield in low-irradiance conditions and during morning/afternoon hours when the angle of incidence is unfavorable. - **23.1-23.5% efficiency - above TOPCon peers** - The series' efficiency exceeds Talesun TM7G78M and RedSolar M10R (22.72% each at the same 635 Wp power class) by about 0.8 percentage points, while sitting close to Sunpro Power TOPCon 210R (23.51%), confirming a top-tier position in the segment. - **Low temperature coefficient of -0.26%/°C** - Thanks to the back contact architecture, the power temperature coefficient is -0.26%/°C, clearly better than the -0.30 to -0.35%/°C typical of standard TOPCon/PERC modules, translating into higher output in hot climates and on poorly ventilated roofs. - **30-year power warranty with 88.85% retention** - With 1% first-year degradation and 0.35% per year in years 2-30, guaranteed power reaches 88.85% of nameplate after 30 years - above the 87.4% floor that has become the market standard for premium tier-1 N-type modules as of 2026. - **Tier-1, bankable manufacturer** - Longi Solar (founded 2000) is a market-leading PV manufacturer with full tier-1 bankable status, easing financing for large-scale projects - PV farms and commercial rooftops - by banks and infrastructure funds that require low credit-risk manufacturer references. ## Cons - **Only 15-year product warranty** - While the power warranty extends to 30 years, the product/workmanship warranty is only 15 years - below the emerging 25-year standard already offered by some tier-1 N-type competitors (e.g., Jinko Tiger Neo, JA Deep Blue, Canadian TOPHiKu6, Trina Vertex S+), limiting defect coverage in the second half of the module's service life. - **Shorter track record for BC technology** - Launched in 2024, the series relies on back contact technology with a shorter mass-production and field-data history compared to more mature TOPCon lines from peers (Sunpro Power, Talesun, RedSolar), which may matter for investors assessing long-term field degradation risk. ## About this series The Longi Solar Hi-MO X10 Explorer LR7-72HVD 625-645M series is designed to maximize energy yield from every square meter of installation-especially where power density and predictable long-term performance are critical. A key feature is the application of back-contact (rear-side) cell architecture, which reduces the number of front-side shading elements, allowing the panel to better utilize light-particularly under low irradiance conditions and during morning and afternoon hours. The multi-cell construction supports more stable operation under partial shading, while refined module electronics and safety features enhance reliability in high-voltage installations. In practice, this translates to **higher annual yield**, **improved performance under shading**, and **lower losses in real-world conditions**. This solution is ideal for investors seeking to build **PV farms**, large commercial rooftops, or projects requiring **low LCOE** and stable energy production over years. ## Notable figures - Efficiency of 23.3% is 0.5pp above the \*\*N-type 600-650W\*\* median (22.8%) - At 233.2 W/m² power density, this panel generates 5.5 W/m² more per unit area than \*\*N-type 600-650W\*\* median (227.7 W/m²) - At -0.26%/°C (vs median -0.29%/°C), loses ~1% less power in hot conditions - Weight of 33.5 kg is typical for \*\*N-type 600-650W\*\* panels - Bifacial design (70% factor) captures reflected light - adds 4-10% yield on ground-mount or white roof ## Questions ### What is back contact technology in the Longi Hi-MO X10 Explorer LR7-72HVD and why does it matter? In the LR7-72HVD series, all electrical contacts are placed on the rear side of the cell, leaving the front surface completely free of metal busbars. This allows more light to reach the active cell area, pushing module efficiency up to 23.9%. The advantage extends beyond peak-sun hours: the panel captures diffuse light more effectively in the morning, evening, and under overcast skies, resulting in a measurably higher annual energy yield. ### What warranty does the Longi Solar Hi-MO X10 Explorer LR7-72HVD 625–645M carry? LONGi Solar provides a 15-year product warranty covering materials and workmanship, and a 30-year linear power warranty. At year 30 the module is guaranteed to retain at least 88.85% of its rated power, with annual degradation from year 2 onward of only 0.35%. As a Tier 1 manufacturer, LONGi Solar adds bankability assurance that supports long-term project financing. ### Is the Longi Hi-MO X10 Explorer LR7-72HVD 625–645M suitable for utility-scale solar farms or large commercial rooftops? Yes, the LR7-72HVD series is specifically designed for utility-scale PV farms and large commercial rooftops. With up to 645 Wp per panel, large-format dimensions of 2382×1134 mm, and high power density, it supports projects with a low LCOE. The bifacial N-type design captures reflected albedo irradiance from the ground, which is especially advantageous in ground-mount systems with light-colored surfaces between module rows. ### How does the Longi Hi-MO X10 Explorer LR7-72HVD handle partial shading? The back contact architecture combined with 144 half-cut cells reduces partial-shading power losses by approximately 70% compared to conventional TOPCon modules. In practice this means the system produces more energy when portions of the array are shaded by clouds, nearby structures, chimneys, or soiling — a critical advantage for commercial and utility projects where predictable output is essential. ### How does summer heat affect the output of Longi Hi-MO X10 Explorer LR7-72HVD panels? The power temperature coefficient of the LR7-72HVD is -0.26%/°C, which outperforms typical TOPCon modules rated at -0.29 to -0.30%/°C. At a cell temperature of 70°C, common on hot summer days, the power loss is roughly 1 percentage point lower than an average TOPCon module. For a 1 MW farm, that difference translates into measurable additional energy generation during hot months at no extra cost. ### Is the Longi Hi-MO X10 Explorer LR7-72HVD a bifacial module and how much extra energy can it generate? Yes, the LR7-72HVD is a bifacial module that generates power from both its front and rear surfaces. The rear side harvests albedo light reflected from the ground or rooftop, which can increase total energy output by several to over ten percent above the front-side nameplate rating under favorable conditions such as a light-colored ground surface and an appropriate tilt angle. The bifacial gain is greatest in ground-mount installations on bright substrates such as gravel or light soil. ## Datasheet [Manufacturer datasheet (PDF)](https://comparepv.com/datasheets/lr-7-72-hvd-625-645-m-30-30-and-15-explorer-bgv-02-20241118-2b77d48318e1.pdf) ## Alternatives | Panel | Power | How it differs | | --- | --- | --- | | [AIKO AIKO-A650-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a650-mae72mw) | 650 W | +20 W, lighter, +1.9 pp | | [AIKO AIKO-A680-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a680-mde72mw) | 680 W | +50 W, lighter, +1.9 pp | | [AIKO AIKO-A675-MDE72Mw](https://comparepv.com/panel/aiko-aiko-a675-mde72mw) | 675 W | +45 W, lighter, +1.7 pp | | [AIKO AIKO-A645-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a645-mae72mw) | 645 W | +15 W, lighter, +1.7 pp | | [AIKO AIKO-G670-MCH72Mw](https://comparepv.com/panel/aiko-aiko-g670-mch72mw) | 670 W | +40 W, lighter, +1.5 pp | | [Longi Solar LR7-72HVHF-670M](https://comparepv.com/panel/longi-lr7-72hvhf-670m) | 670 W | +40 W, lighter, +1.5 pp | | [AIKO AIKO-A640-MAE72Mw](https://comparepv.com/panel/aiko-aiko-a640-mae72mw) | 640 W | +10 W, lighter, +1.5 pp | | [Longi Solar LR8-66HGD-595M](https://comparepv.com/panel/longi-lr8-66hgd-595m) | 595 W | -35 W, hotter, -1.3 pp | | [Longi Solar LR7-72HGD-600M](https://comparepv.com/panel/longi-lr7-72hgd-600m) | 600 W | -30 W, hotter, -1.1 pp | | [Longi Solar 600M](https://comparepv.com/panel/longi-600m) | 600 W | -30 W, -0.9 pp, -5 yr warranty | | [Longi Solar LR7-72HTH-605M](https://comparepv.com/panel/longi-lr7-72hth-605m) | 605 W | Lighter, -0.9 pp, -5 yr warranty | | [AIKO AIKO-A700-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a700-mae78dw) | 700 W | +70 W, heavier, +1.7 pp | | [AIKO AIKO-A695-MAE78Dw](https://comparepv.com/panel/aiko-aiko-a695-mae78dw) | 695 W | +65 W, heavier, +1.6 pp | | [Jinko Solar JKM650-670N-66QL6-BDV (670W class)](https://comparepv.com/panel/jinko-solar-jkm650-670n-66ql6-bdv-670w-class) | 670 W | +40 W, lighter, +1.5 pp | --- Source: https://comparepv.com/panel/longi-lr7-72hvd-630m Not in this file, on the page: the I-V and temperature curves lifted from the manufacturer's datasheet, a thirty-year output simulator, a bifacial gain calculator and alternatives filtered by how closely they match these dimensions.