LONGi's new back-contact panel: up to 670W, 24.8% efficiency and a 30-year warranty. All the circuitry behind; up front, nothing but cell catching sun.
Get your study →
LONGi is the world's largest manufacturer of photovoltaic technology, and the Hi-MO X10 is its most advanced module: back-contact HPBC 2.0 technology, with all circuitry on the rear side. No metal ribbons casting shade on the cell: more active surface, more production and a flawless full-black look.
In a conventional panel, metal ribbons (busbars) cross the front face of every cell: they cover active surface, create micro-shading and stress points. LONGi's HPBC 2.0 technology moves 100% of the electrical contacts to the rear face, and its Zero-Busbar (0BB) structure shortens the transmission distance by 6.5%: +5W of extra power from architecture alone.
Front metal ribbons cover cell area, reflect light and create permanent micro-shading.
Contacts on the rear face: maximum active surface, zero metal shading and a full-black look.
Compared with the TOPCon and PERC modules most of the market installs, the Hi-MO X10 wins at everything that matters in Mallorca.
Size for size, it delivers 30W more than an equivalent TOPCon: 24.8% module and 26.6% cell efficiency. On space-limited roofs, that's the difference between reaching your target power or not.
Its back-contact architecture cuts production loss under partial shade by 70% versus TOPCon. Combined with SolarEdge optimisers, it's the most productive pairing on the market.
The best temperature coefficient in its class. When the roof passes 60°C in July, the Hi-MO X10 loses less power than any TOPCon: more production exactly when there's most sun.
1% degradation in year one and only 0.35% per year: ≈89% of power guaranteed in year 30. The TaiRay wafer adds +16% break resistance against wind, hail and handling.
Hotspots run 28°C cooler than on conventional modules: less thermal stress, less risk and a longer life for the whole installation.
No visible busbars: the front face is genuinely uniform black. On Mallorca's villas and fincas, where looks matter, there is no cleaner panel on a tiled roof.
ⓘ Official LONGi Solar data (European launch of the Hi-MO X10). Power and efficiency depend on version and cell format (54/60/72 cells).
| Cell technology | HPBC 2.0 back-contact |
| Peak power | up to 670 W |
| Module efficiency | up to 24.8% |
| Cell efficiency | 26.6% |
| Temperature coefficient | −0.26%/°C |
| Year-1 degradation | 1% |
| Annual degradation | 0.35% |
| Power warranty | 30 years |
| Structure | Zero-Busbar (0BB) |
| Wafer | TaiRay · +16% strength |
| Formats | 54 / 60 / 72 cells |
We are a certified SolarEdge installer and official KSTAR distributor in the Balearics. We'll prepare a personalised study, no strings attached.
Request your free study →proyectos@uep.solar · 871 24 21 02
