The structural difference — visualized
Risk Retirement: EPC Stacked vs. ACM Sequential
Three comparison layers: technical risk exposure  ·  insurance burden  ·  business performance certainty.
VS EPC MODEL — RISKS STACKED SIMULTANEOUSLY ACM MODEL — SEQUENTIAL RISK RETIREMENT LAYER 1 · TECHNICAL RISKS Technology Risk — LIVE ENTIRE PROGRAM Engineering Risk — LIVE ENTIRE PROGRAM Procurement & Supply Risk — LIVE Construction & Field Fabrication Risk — LIVE Commissioning Risk — LIVE Operational Risk — UNMANAGED ALL LIVE AT ONCE COD — Month 42–78 Technology ✓ RETIRED Engineering + FMEA ✓ RETIRED DFM + Factory Manufacturing ✓ RETIRED Factory Acceptance Test — Pre-verified ✓ RETIRED Site Acceptance — Verification Protocol ✓ RETIRED Operational — Managed live via CAFI Digital Triplet COD — Month 6–20 (from inventory / queue) LAYER 2 · INSURANCE BURDEN FULL WRAP — ENTIRE PROGRAM DURATION Builder's Risk  ·  Professional Indemnity  ·  Performance Bond  ·  DSU All categories running simultaneously — full program duration COVERAGE DIMINISHES AS EACH RISK IS RETIRED → Design PI Only minimal Factory Factory BR Transit + Install ASI Guarantee + Warranty Only LAYER 3 · BUSINESS PERFORMANCE CERTAINTY PERFORMANCE UNKNOWN UNTIL COD No pre-deployment test possible · DSU insurance required Commissioning is first proof of performance at commercial scale PERFORMANCE VALIDATED BEFORE DEPLOYMENT FAT confirms design spec · DFM compliance proven in factory ASI performance guarantee active from Day 1 of commercial operations RISK MANAGED CONTRACTUALLY — NEVER ELIMINATED EACH RISK RETIRED · INSURANCE ELIMINATED · PERFORMANCE GUARANTEED
Source: EPC Primer §2 · Carbotura Advanced Circular Manufacturing