Twin Long Centered — 20 ft standard DC block
Two long pairs on either side of one PCS & MV skid — one skid feeds all four DC blocks
Overview
Two long pairs, each two DC blocks joined on their blind long sides. One PCS & MV skid (20 ft or 40 ft) sits between them, cable ends facing the skid.
| Parameter | Value |
|---|---|
| DC blocks | 4 × 20 ft |
| PCS & MV skids | 1 × 20 ft / 40 ft |
| Section size | 30.3 × 5.1 m (99.4 × 16.7 ft) |
Energy capacity
Section energy and power rating for this configuration.
| DC block | BESS section (4 blocks) | Duration |
|---|---|---|
| 6.25 MWh | 25 MWh / 6.25 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 |
| DC block stacking gap | 0.2 m (0.7 ft) |
| Fire separation (between DC blocks of different sections) | 5 m (16.4 ft) |
Cable layout
DC cables run from each long pair's cable end to the central PCS & MV skid.
Single BESS section footprint
Land area at default clearance. When cable ends face the skid, their clearance zones overlap with the skid zone — no extra width needed.
Cable-end clearance shared with skid zone
99.4 × 39.6 ft
Cable-end clearance extends outward
112.6 × 39.6 ft
| Land use | Cable inward | Cable outward |
|---|---|---|
| Footprint | 30.3 × 12.1 m (99.4 × 39.6 ft) | 34.3 × 12.1 m (112.6 × 39.6 ft) |
| Total area | 366 m² (3,940 ft²) | 414 m² (4,460 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 · 16 DC blocks
447.0 × 39.6 ft
4 sections · 16 DC blocks
215.3 × 72.7 ft