Longi Solar LR7-72HVD-645M<\/b> from the Hi-MO X10<\/b> series is a powerful bifacial photovoltaic module with a rated power of 645 W<\/b>, built in a 72-cell (72HVD)<\/b> form factor. We recommend this model for industrial solar power plants, ground-mounted commercial self-consumption facilities, and scalable private solar power plants.<\/p>\n
Unlike the LR8<\/i> series (which has a 66-cell configuration), the LR7 (72-cell)<\/b> series is optimized to deliver high output voltage at a moderate operating current. This makes it an ideal choice for building long strings and maximizing integration with most grid-tied and hybrid inverters.<\/p>\n HPBC 2.0 Cell Technology:<\/b> A new generation of cells with fully rear-contact (Back Contact) placement. The absence of metal grids on the front side eliminates silicon shading and provides a maximum module efficiency of up to 23.9%<\/b>.<\/p>\n<\/li>\n Bifacial Double Glass Generation:<\/b> A dual tempered glass construction (2.0 mm + 2.0 mm) captures reflected light on the rear side. Depending on surface albedo (gravel, concrete, light-colored membrane) and mounting height, this adds 5% to 25%<\/b> to the total energy yield.<\/p>\n<\/li>\n Low Temperature Coefficient (-0.29%\/\u00b0C):<\/b> The panel maintains stable, high generation even in summer heat, losing significantly less power from overheating compared to PERC technology.<\/p>\n<\/li>\n Minimal Degradation:<\/b> Resistance to LID and PID effects guarantees a first-year power loss of less than 1%<\/b>, and annual linear degradation over 30 years does not exceed 0.4%<\/b>.<\/p>\n<\/li>\n Enhanced Microcrack Protection:<\/b> HPBC 2.0 technology offers high mechanical resistance to local stresses, minimizing the risk of hot spots forming during transportation and installation.<\/p>\n<\/li>\n<\/ul>\n From the experience of our installation crews:<\/b> Thanks to its 72-cell layout, the LR7-72HVD-645M<\/b> delivers a higher open-circuit voltage (Voc) compared to 66-cell panels of similar power.<\/p>\n String Optimization:<\/b> The higher voltage allows for longer series strings without exceeding the inverter’s current limits. This reduces the overall consumption of solar cable and the number of connectors on site.<\/p>\n<\/li>\n Physical Parameters:<\/b> The module has industrial dimensions (approximately 2382 \u00d7 1134 \u00d7 30 mm<\/b>) and weighs approximately 33.5\u201334 kg<\/b>. Two to three installers are required for safe lifting and positioning on the structure.<\/p>\n<\/li>\n Mechanical Strength:<\/b> The double glass provides reliable protection against wind loads (up to 2400 Pa) and snow loads (up to 5400 Pa). When mounting on ground-based metal structures, we always adhere to the recommended clamp mounting points to preserve the factory warranty.<\/p>\n<\/li>\n<\/ul>\n \u2705 For industrial and commercial solar power plants (ground-mounted and rooftop), where it is important to optimize the balance-of-system (BOS) cost \u2014 reducing the amount of cable, switchgear, and cable runs. \u274c For small pitched roofs with a complex geometric profile. The large size of the 72-cell module makes it difficult to place on roofs with numerous valleys, chimneys, or dormer windows.<\/p>\n","protected":false},"excerpt":{"rendered":"Technical Advantages and Innovations of the Hi-MO X10 Series<\/h3>\n
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Installation and Design Experience<\/h3>\n
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Who It Suits<\/h3>\n
\n\u2705 For sites with bifacial mounting, where reflected light from the ground or a white roof covering can be utilized.<\/p>\nWho It May Not Suit<\/h3>\n
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\n Weight, kg<\/th>\n 33.5<\/td>\n<\/tr>\n \n Dimensions, H*W*D, mm<\/th>\n 2382 \u00d7 1134 \u00d7 30<\/td>\n<\/tr>\n \n Warranty Period, years<\/th>\n 15<\/td>\n<\/tr>\n \n Power Tolerance, W<\/th>\n 0 ~ +3%<\/td>\n<\/tr>\n \n Number of Photovoltaic Cells, pcs<\/th>\n 144 (6×24)<\/td>\n<\/tr>\n \n Country of Manufacture<\/th>\n China<\/td>\n<\/tr>\n \n Maximum System Voltage, V<\/th>\n 1500<\/td>\n<\/tr>\n \n Voltage at Maximum Power, V<\/th>\n 53.70<\/td>\n<\/tr>\n \n Open-Circuit Voltage, V<\/th>\n 44.56<\/td>\n<\/tr>\n \n Power, W<\/th>\n 645<\/td>\n<\/tr>\n \n Frame<\/th>\n anodized aluminum<\/td>\n<\/tr>\n \n Current at Maximum Power, A<\/th>\n 15.17<\/td>\n<\/tr>\n \n Module Protection Rating<\/th>\n IP68<\/td>\n<\/tr>\n \n Module Type<\/th>\n monocrystalline<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n","protected":false},"featured_media":2584,"comment_status":"open","ping_status":"closed","template":"","meta":[],"product_brand":[64],"product_cat":[51],"product_tag":[],"class_list":["post-2582","product","type-product","status-publish","has-post-thumbnail","product_brand-longi","product_cat-solar-panels","first","instock","taxable","shipping-taxable","purchasable","product-type-simple"],"yoast_head":"\n