32 MW PowerBlock™ — TDS
Facility Electrical Interconnection & Distribution (Island-Mode Capable)
D-PWR-02 (Power Architecture, locked 2026-07-08). 1,500 VDC / 30 kVDC nested topology; AC utility bus (60/50 Hz field-switchable); 48 VDC controls bus.
designer-drafts/CBT-PWR-TDS-001_rev0_draft.md.
1. Executive Summary
PowerBlock™ is the facility electrical interconnection and distribution system. Island-Mode capable; energy is internal only (Carbotura does not sell power/electricity).
2. Facility Context & Module Boundaries
Serves all modules across PIMB + RMB.
3. Process Description — Bus Topology (D-PWR-02)
| Scope | Primary DC bus |
|---|---|
| Single 100 TPD Minimum Factory Module | 1,500 VDC |
| Building distribution bus (>1 × 100 TPD factory) | 30,000 VDC (30 kVDC) → step-down to 1,500 VDC/module |
- AC utility bus (60 Hz USA / 50 Hz international, field-switchable inverter): CARRIED — confirm against 1,500 V / 30 kV topology. OPEN.
- 48 VDC controls bus (SCADA/instrumentation/safety): CARRIED — confirm. OPEN.
- Load split (%) across DC/AC/48V: re-derive on new topology (do NOT reuse prior 80/15/5).
4. Feedstock Design Envelope
N/A (utility module); input = PEM FC / grid tie / BESS. OPEN.
5. Module Equipment Specifications
Quick-connect ASI-PBK-QC (was RK-PB-QC-001). OPEN: transformer/rectifier, inverter, switchgear ratings at 1,500 V / 30 kV.
6. APS Interface Register
MCC room capture ties to APS. Minimal.
7. Modular Installability & ICD
ASI-PBK-QC quick-connects; skid-bounded switchgear.
8. Utilities Register
Self-referential (this IS the utility). Cross-ref NEXUS.
9. Vendor Matrix
OPEN (MVDC switchgear / inverter OEM shortlist, OER Gate 2).
10. CAPEX Estimate
OPEN [Class 2 ±15%, 2026 USD].
11. TIC WBS Reconciliation
OPEN.
12. Lead Time Schedule
OPEN (MVDC switchgear long-lead risk — flag).
13. TRL / ERL / IRL
1,500 VDC industrial bus TRL 9; 30 kVDC building MVDC bus — confirm TRL (emerging MVDC distribution), OPEN.
14. Confidence Factor
OPEN.
15. Availability Model
N+1 rectifier/inverter target; BESS ride-through. OPEN.
16. Risk Register
Option A callout; S/P/D/RPN. Seed risk: MVDC 30 kV protection coordination (S/P/D OPEN).
17. Spares Register
OPEN.
18. Warranty Register
ASI Unitized Warranty Passport.
Open Actions
- Confirm AC/48V buses + load split on new topology.
- MVDC switchgear OEM.
- Protection coordination study.
1st Review Draft · Sourced from designer-drafts/ · OPEN markers preserved