What deliverables are produced in Front-End Engineering Design (FEED)?

FEED deliverables: Process - PFDs (final), P&IDs (issued for design), heat and material balances, process description, equipment datasheets, utility summary, relief/flare study. Mechanical - equipment specifications, vessel drawings (outline), piping specifications. Electrical - load list, single line diagrams. Instrumentation - instrument index, control narrative, cause and effect. Civil - plot plan, soil investigation report. Cost - Class 3 estimate (+/- 10-15%), project execution plan. Schedule - detailed project schedule. HSE - HAZOP reports, environmental permits. FEED quality directly impacts project success - incomplete FEED leads to changes during detailed engineering. Typical FEED effort is 10-15% of total engineering hours. Gate review before proceeding to detailed engineering should confirm complete scope definition and cost certainty.