The Ministry of Climate, Energy and Environment’s Phase 1 distribution-grid ESS project — linked to additional renewable-energy interconnection — confirmed 9 operators and allocated a combined 128 MW (640 MWh) across 32 distribution feeders. Samsung SDI recorded the largest award at 66%, with LG Energy Solution and SK On splitting the remainder. This article converts that volume-allocation ratio into a load distribution across battery-pack assembly lines, and back-calculates, under an assumed scenario, how far the takt time diverges between operators. The conclusion is that a difference in procurement-volume ratio is carried straight through into a load imbalance at the production-line design stage, so Line Balancing review must be conducted together,…