HJT and TOPCon are the two dominant N-type cell architectures in 2026. TOPCon holds 76% market share by volume; HJT is winning premium segments (BIPV, floating, low-temp climates) with better temperature coefficient.
TOPCon efficiency
22.6%
mass prod
HJT efficiency
23.1%
mass prod (Huasun)
Temp coeff (TOPCon)
-0.30%/°C
Temp coeff (HJT)
-0.24%/°C
Best HJT suppliers from China
- Huasun (7 GW HJT capacity)
- Risen SnowMan HJT
- Akcome
- Tongwei HJT (pilot 5 GW)
Frequently asked questions
QShould I switch from TOPCon to HJT?
For hot climates >30°C ambient — yes, HJT's lower temp coefficient adds 3-6% annual yield. For temperate climates — stay TOPCon, cheaper $/W wins.
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