IBC
Acronym for: Interdigitated Back Contact
Premium solar cell with all electrical contacts on the back, eliminating front-side shading for maximum efficiency.
Detailed Explanation
IBC (Interdigitated Back Contact) cells have both positive and negative electrodes on the rear surface, leaving the front completely free of busbars. This maximizes sunlight absorption and yields 23-25%+ cell efficiency. The design is aesthetically superior (no visible front wires). Major IBC producers: SunPower (Maxeon), LG, LONGi (via HPBC variant). Premium pricing $0.15-0.20/W FOB places IBC primarily in high-end residential and small commercial markets, not utility-scale.
IBC / Back-Contact Module Manufacturers
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Related Terms
N-type solar cell technology with a tunneling oxide passivation layer that achieves 25-26% efficiency.
Mainstream solar cell technology from 2019-2024 using a passivation layer on the rear cell surface; 22-23% efficiency.
Premium N-type solar cell tech combining crystalline and amorphous silicon for 25-26%+ efficiency.
LONGi's proprietary N-type back-contact technology for premium residential; 22-23% module efficiency.
Solar modules that generate power from both front and rear surfaces; 7-15% higher yield in ground-mount projects.