WBS 1 Stellarator Core Systems

WBS 1 Stellarator Core Systems

CD-2 Baseline

WBS Level 3	WBS Level 4
WBS 11 - Plasma Facing Components Summary Information - Not Changed Since PDR Baseline	WBS 111- Limiters Summary Information - Not Changed Since PDR Baseline Contingency- Not Changed Since PDR Baseline Backup Details- Not Changed Since PDR Baseline WBS 112 - Internal Liner - NOT IN BASELINE Summary Information - Not Changed Since PDR Baseline WBS 113 - Internal Trim Coils - NOT IN BASELINE Summary Information - Not Changed Since PDR Baseline WBS 114 - Local I&C- NOT IN BASELINE Summary Information - Not Changed Since PDR Baseline
WBS 12 - Vacuum Vessel Systems Summary Information - Not Changed Since PDR Baseline	WBS 121 - Vacuum Vessel Assembly Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline Miscellaneous PDR recommendations (Redesign of port extensions, re-evaluation of the viability of manual welding, & re-evaluation of leak mitigation); and Escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate. WBS 122 - Thermal Insulation Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 123 - Heating & Cooling Distribution System Summary Information - Not Changed Since PDR Baseline Contingency- Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline Miscellaneous PDR recommendations (350 degree bakeout study& re-evaluation of the utility lines inside VV); and Escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate; and CD-4 Scope Inclusions => implementation of the 350 degree bakeout. WBS 124 - Vacuum Vessel Supports Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 125 - Local I&C Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate
WBS 13 - Conventional Coil Systems Summary Information - Not Changed Since PDR Baseline	WBS 131- TF Coils Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Changes since PDR Correction of estimate calculation error Escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 132 - PF Coils (PF Solenoid & PF Ring Coils) - This now includes the CS Support Structure (transferred from old WBS 152 Summary Information (WBS 132) - This now includes the CS Support Structure (transferred from old WBS 152 Contingency (WBS 132) - Not Changed Since PDR Baseline Backup Details (WBS 132) - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 133 - External Trim Coils Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 134 - Conventional Coils Local I&C Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate
WBS 14 - Modular Coils Summary Information - Not Changed Since PDR Baseline	WBS 141 - Winding Forms Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline Miscellaneous PDR recommendations (Reassessment of access thru VV & reassesment of assembly tolerance budgets); and Escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate. WBS 142 - Windings & Assembly Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline PDR recommendation for additional R&D; PBR recommendation to cold test all 18 coils; and Escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate. WBS 143 - Local I&C Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details- Not Changed Since PDR Baseline WBS 144 - Winding Facility & Fixtures Summary Information- Not Changed Since PDR Baseline Contingency- Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline PBR Recommendation to add a 2nd winding line
WBS 15 - Coil Support Structures Summary Information - Old WBS 152 transferred to and WBS 132 and old WB 153 collapsed into WBS 152	WBS 151 - Coil Support Structures (All but Central Solenoid) Summary Information - includes old WBS 153 Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 152 - Central Solenoid Support Structure - relocated to WBS 132 Summary Information WBS 153 - Local I&C - combined with WBS 151 Summary Information
WBS 16 - Coil Services Summary Information- Not Changed Since PDR Baseline	WBS 161 - LN2 Distribution System Summary Information- Not Changed Since PDR Baseline Contingency- Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline Miscellaneous PDR Recommendations (Reassessment of LN2 design, re-evaluation of auxiliary utility lines inside the cryostat; & reassesment impact on the design due to the close confines of the cryostat); and PDR recommendation scope of coil services. WBS 162 - Electrical Leads (Inside Cryostat) Summary Information- Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline Miscellaneous PDR Recommendations (Reassessment of LN2 design, re-evaluation of auxiliary utility lines inside the cryostat; & reassesment impact on the design due to the close confines of the cryostat); and PDR recommendation scope of coil services. WBS 163 - Coil Protection System Summary Information- Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline
WBS 17 - Cryostat and Base Support Structure Summary Information - Not Changed Since PDR Baseline	WBS 171 - Cryostat Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 172 - Base Support Structure Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate
WBS 18 - Field Period Assembly Summary Information - Not Changed Since PDR Baseline	WBS 181 - Planning & Oversight Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline WBS 182 - TFTR Test Cell Preparation Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 183 - Receipt, Inspection, and Testing of Coils Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline WBS 184 - Receipt, Inspection, and Testing of Vacuum Vessel Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline WBS 185 - Field Period Assembly Summary Information- Not Changed Since PDR Baseline Contingency- Not Changed Since PDR Baseline Backup Details - Changes Since PDR Baseline Miscellaneous PDR recommendations (Additional time in pre-assembly sequence & full size mockup); and Escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate WBS 186 - Tooling Design and Fabrication Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline WBS 187 - Measurement Systems Summary Information- Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline Backup Details - Not Changed Since PDR Baseline Only escalation due to re-sequencing of activities to conform to funding constraints => no change in estimate
WBS 19 - Stellarator Core Systems Management & Integration Summary Information - Not Changed Since PDR Baseline Contingency - Not Changed Since PDR Baseline	WBS 191- Stellarator Core Management and Oversight Backup Details - Not Changed Since PDR Baseline Schedule stretch-out (total of 8 months) due to accommodation of PDR recommendations, PBR recommendations, and CD-4 scope inclusions WBS 192 - Stellarator Core Integration & Global Analysis Backup Details - Not Changed Since PDR Baseline Schedule stretch-out (total of 8 months) due to accommodation of PDR recommendations, PBR recommendations, and CD-4 scope inclusions