Domestic HJT Solar Panel Efficiency Breaks 28%, Levelized Cost of Electricity Drops to 0.15 RMB

LONGi Green Energy announces its HJT heterojunction solar panel mass production efficiency reaches 28.3%. With upstream silicon material price decline, solar LCOE has dropped to 0.15 RMB/kWh.

LONGi Green Energy today announced its HJT heterojunction solar panel mass production average efficiency reaches 28.3%, again breaking the world record.

In terms of cost:

Component cost dropped to 0.8 RMB/watt
Solar LCOE dropped to 0.15 RMB/kWh
25% decline compared to 2026 average

Analysts expect this breakthrough will accelerate the replacement of coal-fired power generation by solar.

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