Twin Short — 20 ft standard DC block
Two DC blocks joined end-to-end on their blind short sides with the PCS & MV skid along the long side
Overview
Two DC blocks joined end-to-end on their blind short sides. Cable ends face outward, and the skid sits along the long side below the pair.
| Parameter | Value |
|---|---|
| DC blocks | 2 × 20 ft (short pair) |
| PCS & MV skids | 1 × 40 ft @2h · 20 ft @4h |
| Section size | 12.3 × 8.4 m (40.4 × 27.5 ft) |
Energy capacity
Section energy and power rating for this configuration.
| DC block | BESS section (2 blocks) | Duration |
|---|---|---|
| 6.25 MWh | 12.5 MWh / 6.25 MW | 2h |
| 6.25 MWh | 12.5 MWh / 3.125 MW | 4h |
Clearance and spacing defaults
Service clearance and spacing used by default. All values are adjustable in BESSLayout.
| Setting | Default |
|---|---|
| DC block door side | 3.5 m (11.5 ft) |
| DC block cable end | 2 m (6.6 ft) |
| PCS & MV skid | 3 m (9.8 ft) all sides |
| Fire separation (between DC blocks of different sections) | 5 m (16.4 ft) |
Cable layout
Each DC block cables from its outward-facing cable end down to the skid below. At 40 ft the skid has two PCS sections — one per block.
Single BESS section footprint
Land area at default clearance. Door clearance above, skid clearance below, cable-end clearance on each side.
Skid below the DC pair, doors facing up
53.5 × 37.3 ft
| Land use | Value |
|---|---|
| Footprint | 16.3 × 11.4 m (53.5 × 37.3 ft) |
| Total area | 186 m² (1,998 ft²) |
Multiple BESS sections footprint
Land area for four sections, in a row and in a 2 × 2 grid, at the default spacing.
4 sections · 8 DC blocks
224.0 × 37.3 ft
4 sections · 8 DC blocks
110.3 × 74.6 ft