Twin Long Side — 20 ft standard DC block
Two DC blocks joined on their blind long sides with the PCS & MV skid alongside the doors — a narrower footprint for tight sections
Overview
The same long pair as Twin Long, but with the PCS & MV skid alongside the door sides instead of the cable ends. The DCs stand vertically, so the section is narrower and taller — suited to thin bands the standard twin cannot fill.
| Parameter | Value |
|---|---|
| DC blocks | 2 × 20 ft (vertical) |
| PCS & MV skids | 1 × 40 ft @2h · 20 ft @4h |
| Section size (40 ft skid) | 11.0 × 12.2 m (36.1 × 40.0 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 |
| 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 block's cable end to the adjacent PCS & MV skid.
Single BESS section footprint
Land area at default clearance. The door-side gap between the DC blocks and the skid satisfies both clearance zones.
Door and skid clearance zones overlap
57.5 × 59.7 ft
| Land use | Value |
|---|---|
| Footprint | 17.5 × 18.2 m (57.5 × 59.7 ft) |
| Total area | 319 m² (3,430 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
195.4 × 59.7 ft
4 sections · 8 DC blocks
103.4 × 109.5 ft