LONGi's Hi-MO X10 uses second-generation HPBC (Hybrid Passivated Back Contact) cells. It's the highest-efficiency mass-produced module in 2026 and the leading premium rooftop choice.
Module efficiency
24.8%
Hi-MO X10 640W
HPBC 2.0 cell efficiency
26.6%
in mass production
Aesthetic
full-black, no busbars
premium rooftop
CIF EU (May 2026)
$0.132/W
640W BC
Why BC is winning premium rooftop
Back-contact cells eliminate front-side busbars, giving 3-4% more active area and a uniform black aesthetic residential buyers pay a premium for. HPBC 2.0 pushes cell efficiency past 26.5% and enables 24.8% module efficiency at production scale — the highest of any commercial module family in 2026.
Frequently asked questions
QHow does Hi-MO X10 compare to Aiko ABC?
Both are back-contact. Aiko's Neostar 3S is marginally more efficient (24.9% vs 24.8%) but LONGi has 4x the production capacity and stronger bankability. In Europe both command a similar $0.130–0.135/W premium.
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