EcoLife Series: Hi-MO X10 Artist – The full-black residential solar module where aesthetics and performance align

The Hi-MO X10 Artist is a 54-cell full-black module using LONGi’s advanced HPBC 2.0 back contact technology that delivers everything required for a modern residential solar system.

‍
With growing demand for aesthetics alongside high performance in PV, full-black modules have become the standard in residential solar. LONGi’s Hi-MO X10 Artist full-black module combines an ultra-deep black finish with back contact (BC) technology, eliminating front-side contacts for a uniform appearance that blends seamlessly with rooftops. In northern Europe especially, where design plays a decisive role in solar adoption, this combination of elegance and performance makes full-black modules the preferred choice. As with all of LONGi’s back contact modules, it is the back contact technology that truly enables the aesthetics achieved.

Award-winning back contact technology recognized for high performance

LONGi’s Hi-MO X10 Artist full-black module is part of the new EcoLife Series for homeowners which LONGi launched in June 2025. While aesthetics attract attention, long-term performance secures value. The module delivers up to 500 W power output, equivalent to ~245 W/m², and a module efficiency of 24.5% posing the perfect blend of elegance and high performance – even on compact roofs. The module is built on LONGi’s HPBC 2.0 (Hybrid Passivated Back Contact) architecture, a next-generation cell technology that enhances efficiency and reliability. It minimizes shading losses, boosts low-light performance, and enables higher energy yield compared to conventional technologies such as TOPCon. As with every LONGi’s back contact module, the technology is the enabler of the aesthetics.
The Hi-MO X10 received the Smarter E Award 2025 in the photovoltaics category at Intersolar, recognizing its advanced features outlined below.

The technical review of the Hi-MO X10 Artist: Designed for reliability, efficiency, and long-term performance

The module is engineered to combine reliability, cost-effectiveness, and sustained power output. With only 1% degradation in the first year and a 0.35% annual linear degradation rate, it delivers unmatched durability over decades. Its power temperature coefficient of -0.26%/°C represents a 0.03% improvement over TOPCon, securing higher energy yields in hot climates.

Back contact technology with multi-layer cell design for high, long-term energy yields

Light absorption layer: A multi-layer anti-reflection film improves short-circuit current by 2.25%, while enhanced micro-texture uniformity reduces short-wave light reflection by 12%, ensuring greater sunlight capture.
Photovoltaic conversion layer: Bipolar Hybrid Passivation Technology increases open-circuit voltage by 15 mV to 745 mV.
Uniform passivation: Consistent passivation reduces UV-induced degradation and improves long-term stability.
Electric transmission layer: Bipolar Low Resistance Passivation Contacts combined with shading optimizer technology reduces shading losses by over 70% and lower hotspot temperatures by 28%. The zero-busbar (0BB) structure further boosts output and module reliability. The zero-busbar (0BB) structure further boosts output and module reliability.

HPBC 2.0 represents a new stage in back contact technology, overcoming limitations of earlier BC cell designs and silicon wafers. Between 2022 and 2024, LONGi R&D increased the absolute cell efficiency by an impressive 1%. This is considered a generational leap for BC cell design. LONGi’s innovation pace in evolving its back contact technology further has delivered record-breaking results. In October 2024, LONGi became the first Chinese company to set a world record for module efficiency since records began in 1988. Its Hi-MO X10 module reached 25.4% efficiency, now listed on the NREL Champion Photovoltaic Module Efficiency Chart.

Zero busbar design for stronger and more efficient connections

The upgraded back contact manufacturing process applies 0BB cell design with intelligent soldering, directly connecting ribbons to fingers. This reduces transmission distance by 6.5%, adding around 5 W of power output. The absence of front-side busbars eliminates shading, enhancing both performance and aesthetics. Precision laser etching and high-transparency insulating materials reduce leakage risks and improve light absorption.

LONGi’s proprietary N-type TaiRay wafer provides strength and stability at the core

The new TaiRay wafer addresses long-standing silicon wafer challenges. Produced using the improved Recharge Czochralski (RCz) method, it achieves a 16% higher break resistance, better resistance distribution and lower impurity levels. These advances translate directly into higher module performance and long-term reliability.

How the Hi-MO X10 Artist full-black module benefits the Nordics

In Northern climates, solar installations face the dual challenge of long winters and limited sunlight hours. The Hi-MO X10 Artist Full-Black addresses these conditions through its back contactarchitecture, which eliminates front-side busbars to capture more light and significantly improve low-light performance, ensuring stable energy generation even during overcast days and shorter daylight periods. At the same time, the module is engineered for harsh weather, with a front-side static load resistance of 5400 Pa, rear-side resistance of 2400 Pa, and certified hail protection tested with 25 mm hailstones at 23 m/s. This means the Hi-MO X10 can withstand heavy snow loads of more than half a ton per m² on its front side and still maintain structural integrity even with substantial suction forces from strong winds on the rear side. These specifications make the Hi-MO X10 Artist particularly well-suited for residential rooftops in the Nordics, where strong winds, heavy snow, and hail events are common, and where reliability and year-round performance are essential.

As part of LONGi’s EcoLife series, a product family developed to meet the real-world needs of homeowners, the module combines technical excellence and proven reliability with lifestyle-focused design. For homeowners, this translates into long-term peace of mind, backed by a 25-year product warranty and a 30-year performance guarantee.

Link to the datasheet

More information: https://eu.longi.com/products/artist-series

‍