Domestic HJT Solar Panel Efficiency Exceeds 28%, Cost Per kWh Drops to $0.02

LONGi Green Energy announces its HJT heterojunction solar panel mass production efficiency exceeds 28%, setting a new world record. Combined with falling silicon prices, the levelized cost of electricity has dropped to $0.02.

LONGi Green Energy announced today that its HJT heterojunction solar panel mass production efficiency has reached 28.3%, setting a new world record.

Cost breakdown:

Panel cost reduced to $0.11/watt
Solar LCOE dropped to $0.02/kWh
25% reduction compared to 2026 average

Analysts predict this breakthrough will accelerate the replacement of coal-fired power generation with solar energy.

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