Modular BOM engine & critical path
BOM & Critical Path
A 100 MW campus resolved into repeatable power, cooling and data hall blocks — then sequenced against real manufacturing and commissioning durations.
Procurement critical path — Lone Star AI Campus
Jan 27Jan 28Jan 29Jan 30
Land & site works
6 mo
Permitting
8 mo
Utility interconnection
14 mo
Substation construction
9 mo
Transformers (manufacture + ship)
32 mo
MV switchgear
14 mo
Standby generation
14 mo
UPS
7 mo
Heat rejection plant
8 mo
CDU + liquid distribution
5 mo
Racks & network
4 mo
Installation
6 mo
Commissioning
5 mo
Critical path item
Large power transformers
Estimated arrival
March 2029
Project target
October 2028
Delay
5 months
Estimated bill of materials — 100 MW
Power block (10 × 5 MW)
| Main power transformer 150 MVA | 3 | Nordpower Transformers | 132wCRITICAL | ORDER NOW |
| MV switchgear line-up | 10 | Arcline Power Systems | 58wSEVERELY CONSTRAINED | ORDER NOW |
| UPS module 1.5 MW | 24 | Voltbank Energy Storage | 28wCONSTRAINED | HIGH |
| LV switchgear + busway | 10 sets | Arcline Power Systems | 22wNORMAL | MEDIUM |
Generation
| 3 MW standby generator | 12 | Helion Rotating Power | 60wSEVERELY CONSTRAINED | HIGH |
Cooling block (10 × 5 MW)
| Coolant Distribution Unit 2.5 MW | 24 | Thermaflux Liquid Cooling | 20wNORMAL | HIGH |
| Modular heat rejection plant 8 MW | 8 | Cryomax Heat Rejection | 34wCONSTRAINED | HIGH |
| Plate heat exchanger skid | 10 | Cryomax Heat Rejection | 26wNORMAL | MEDIUM |
Data hall
| AI rack (132 kW DLC-ready) | 624 | Multiple qualified | 10wFAST | MEDIUM |
| Manifolds + quick disconnects | 624 sets | Thermaflux Liquid Cooling | 14wNORMAL | MEDIUM |
| Rack PDU | 1,248 | Multiple qualified | 8wFAST | LOW |
Procurement action board
ORDER NOW
- Transformers (3 × 150 MVA)
- MV switchgear line-ups
VALIDATE THIS WEEK
- CDU supplier technical review
- UPS / e-house interoperability
RFQ REQUIRED
- Modular cooling plant
- Standby generation package
WAIT
- Rack PDU
- Structured cabling
Acceleration options
- Alternative transformer supplier (Monterrey slot)≈ 12 weeksModerate — requires technical validationMEDIUM
- Modular power architecture (10 MW e-house blocks)≈ 22 weeksLow — supplier has US UL-certified lineHIGH
- Reserved manufacturing slot (cancelled order)≈ 18 weeksModerate — slot expires in 30 daysHIGH
- Phased energization (20 MW first block)First capacity ≈ 9 months earlierLow — requires utility agreementMEDIUM
- Secondary-market transformer≈ 30 weeksHigh — condition and warranty unverifiedLOW