Nuclear East vs. West

South Korea and China build the same pressurized water reactors as the United States at roughly one-third the cost and finish them on schedule. The gap is not explained by safety shortcuts or wage differences. It is explained by policy choices made decades ago.

The East-West nuclear cost divergence reflects a structural difference in how each system treats nuclear construction: as a continuous industrial capability versus a series of one-off projects. Countries that build reactors repeatedly, with standardized designs and a standing workforce, capture learning-curve economics. Countries that restart after long gaps pay a first-of-a-kind premium every time.

Same design, opposite outcomes. South Korea's KEPCO has built 28 reactors on a single standardized APR-1400 design lineage, reusing procurement contracts, trained crews, and regulator-approved blueprints. Costs have held near $2,500/kW. The US restarted construction after a 30-year gap. Vogtle Units 3 and 4 were first-of-a-kind in practice: new workforce, new regulatory interpretations, new supply chains. Final cost reached roughly $15,000/kW.

If both projects used the same reactor design, why did costs diverge so sharply?

Industrial continuity, not blueprints. "Same design" on paper is not the same as an institutionalized build sequence. South Korean contractors had built it before. American contractors had not. The workforce knowledge, supplier relationships, and regulatory familiarity that cut costs on units 2 through 28 did not exist at Vogtle. China adds a second advantage: state financing at low interest rates compresses the carrying-cost penalty during delays.

Nuclear's cost problem in the West is partly a policy choice: decades without construction destroyed the industrial base. Rebuilding it requires committing to a build program, not a single plant.

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