Battery energy storageTechnical pages

Walk-in or non-walk-in: choosing the enclosure architecture

The first decision of a battery enclosure is whether a person works inside it. Everything else, the doors, the lighting, the aisle, the rack count, follows from that.

Visualisation of a BESS enclosure in the non-walk-in architecture, with full-length doors along the wall and racks filling the volume
Visualisation

Walk-in

A service aisle runs inside the enclosure with the racks along the walls. The aisle carries lighting and the enclosure has insulated personnel doors with panic hardware: a technician inside can always get out. Walk-in suits maintenance regimes that work inside the container and layouts with equipment in the aisle.

Non-walk-in

Full-length access doors along the walls and no aisle: the racks fill the whole volume and are serviced from outside with the doors open. More racks per metre, no lighting inside, no panic exit to provide, and a door seal to engineer along the full length.

Enclosure only

For battery OEMs and integrators: the enclosure as a white-label series product, identical across the series, delivered with the structural calculation, the deflagration panels, the framed openings, the gland plates, the earthing points, the data and CSC plates and the inspection protocol. The racks, the BMS, the cooling and the fire system are the integrator's.

Integrated with partners

On request the enclosure comes with its systems: HVAC or liquid cooling, fire suppression, off-gas detection, explosion-prevention ventilation, the BMS/EMS cabinet, auxiliary power, lighting and a fire brigade dry inlet, integrated with partners.

20, 40 or 45 ft

A new one-trip ISO High Cube in 20 ft or 40 ft, CSC re-inspected with a new plate, ships as a container. A 45 ft enclosure is available for stationary installation on request.

Specification sheet

Specification sheet
Base and steel
BaseNew one-trip ISO High Cube container, 20 ft or 40 ft, CSC re-inspection and new plate; 45 ft for stationary installation on request
SteelEN 1090-1 EXC2, welding to EN ISO 3834-2, ISO 9001
HandlingISO 1161 corner castings retained, forklift pockets, stackable
Fire and explosion safety
Explosion ventingDeflagration panels per EN 14994 / NFPA 68, included as standard
DoorsWalk-in version with insulated personnel doors and panic hardware; non-walk-in version with full-length access doors
Integration with partners on requestHVAC or liquid cooling, fire suppression, off-gas detection, explosion-prevention ventilation, BMS/EMS cabinet, auxiliary power, lighting, fire brigade dry inlet

Figures are the published specification of the product family, not of a customer's design. Values marked per project are set in the engineering phase.

The specification sheet is generated from the same data as this page. It is sent with the reply to your enquiry and offered for download when the form is submitted.

Request the specification sheet (PDF)

FAQ

Questions procurement asks

Which architecture is the usual choice?

It follows the maintenance regime: walk-in where technicians work inside the container, non-walk-in where the racks are serviced from outside and every metre is for racks.

Can one series mix both?

Yes. The base, the floor and the envelope are the same; the doors and the aisle are the difference. A series can carry both architectures from one design.

Does Tanax supply the racks?

No. The racks, the BMS, the cooling and the fire system are the integrator's or come through partners on request.

Send the rack weights and the foot layout. The floor is calculated from them.

The structural calculation, the openings and the architecture are settled in the engineering phase. The specification sheet comes with the reply.