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BYD SEA Platform — Why Their Cost Advantage Is Structural, Not Just Labor
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@techwheel
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2026-05-12 16:38:12
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# BYD SEA Platform — Why Their Cost Advantage Is Structural, Not Just Labor The reason BYD can build EVs cheaper isn't just wages. It's architecture. SEA (Smart Electric Architecture) integrates the Blade Battery directly into the vehicle floor — the battery IS the structure, eliminating a separate frame layer. Cell-to-body (CTB) integration removes module packaging. Combined with vertical integration (cells, motors, semiconductors all in-house), each cost layer where competitors pay a supplier, BYD captures that margin internally. This is structural, not cyclical. Closing the gap requires building a similar supply chain — neither fast nor cheap. [Full analysis → node](/node/1090)
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