The GridStore range: GS261 cabinet, GS418 DC block, GS1022 cabinet and GSC240 charger

Battery storage for commercial and industrial sites.

Two and four hour storage, and battery enabled charging for sites on a limited supply. Every unit is sized from the site's data and run by ASKA Tungsten.

  • 8,000+cyclesRated cycle life
  • < 3 °Cbetween cellsLiquid cooling keeps every cell close in temperature
  • LFPcell chemistryResists thermal runaway, contains no cobalt
  • Up to 12cabinets in parallelEach dispatched on its own
  • C5coating availableCoastal, industrial and geothermal sites
ModelGS261CabinetGS418DC blockGS1022Four hour cabinetGSC240Charger
Energy261 kWh418 kWh1,022 kWh261 kWh
Power125 kW209 kW250 kW240 kW charging
Duration2 h2 h4 h1.4 h at 240 kW
Cell314 Ah314 Ah1,175 Ah314 Ah
Power conversionIn cabinetSeparate cabinetSeparate 250 kW cabinetIn cabinet
W × D × H, mm1,000 × 1,450 × 2,3501,350 × 1,350 × 2,4001,750 × 1,950 × 2,4001,360 × 1,600 × 2,350
Mass2.75 t3.5 t8.1 t

Inside the cabinet

Key features

1 2 3 4 coolant in / out front panel, pulled forward lid BATTERY PACK 1 CELLS 52 LFP cells, 314 Ah each in series, 1P52S no cobalt 2 BMU reads volts + temp, every cell balances the cells opens the pack on a fault 3 COOLING PLATE coolant runs under the cells 4 MSD manual service disconnect pulled before any work 52 × 3.2 V = 166.4 V × 314 Ah = 52.2 kWh per pack packs in series to suit the cabinet ✓

Cells and packs

Lithium iron phosphate prismatic cells are grouped into packs. A management unit in each pack reads every cell's voltage and temperature and keeps the cells balanced.

  • 1Cells
  • 2Monitoring
  • 3Cooling
  • 4Service

BenefitRated for more than 8,000 cycles, with a stable chemistry that resists thermal runaway.

1 2 3 heat out supply return LIQUID COOLING 1 CHILLER compressor + condenser, lower bay air in and out the front grille 2 COOLANT LOOP sealed glycol loop supply and return to every pack 3 COLD PLATES one under each pack takes heat straight off the cells every cell held at a similar temp even temp, slower ageing battery bay stays closed to outside air

Liquid cooling

A chiller pumps coolant around a sealed loop to a cold plate under each pack, so every cell runs at a similar temperature and ages more slowly.

  • 1Chiller
  • 2Coolant loop
  • 3Cold plates

BenefitCells age evenly and the system holds its output on hot days.

smoke heat DETAIL A 1 2 3 FIRE SAFETY 1 DETECT smoke + heat on the bay ceiling gas detector above the packs off gassing shows before smoke 2 SUPPRESS aerosol unit over the packs releases automatically fire hose coupling on the door, KA 81 3 VENT deflagration panel in the roof pressure goes up, away from people BMS watches every cell alarms → Tungsten edge device this cabinet isolates, others run ✓

Fire safety

Smoke, heat and gas detectors raise the alarm early. If a fire starts, an aerosol unit releases automatically and pressure is vented upward, away from people.

  • 1Detect
  • 2Suppress
  • 3Vent

BenefitA fault is caught early and kept to one cabinet.

TUNGSTEN EDGE XT1 LAN-OUT Ethernet RS485 ×2, CAN TUNGSTEN schedule down data up door panel, inside face 1 2 3 MONITORING 1 EDGE DEVICE on site, wired to every cabinet reads SoC, power, temps, alarms sends setpoints 2 CABINET LINK LAN-OUT, Ethernet to the EMS 2 × RS485 + CAN on XT1 3 TUNGSTEN schedule down, data up alarms raised to the operator each cabinet addressed on its own cell → BMS → EMS → edge → Tungsten

Controls and monitoring

Each cabinet has its own battery management system and energy management system. They control the cells, cooling, fire detection and power limits, and keep the cabinet safe on their own. A Tungsten edge device connects to the cabinet controls, sends each day's schedule and reports measurements and alarms. ASKA Tungsten

  • 1Edge device
  • 2Cabinet connection
  • 3Supervision

BenefitThe cabinet protects itself on site, and Tungsten plans each day and reports the results.

lower bay, door off B+ B− DC breaker PCS COM1 COM2 LAN1 LAN2 QF1-3 Q1 N A B C cables in from below DC battery AC 400 V both ways 1 2 3 PCS + GRID 1 PCS charges and discharges DC ↔ AC 400 V, 3 phase 2 ISOLATION DC breaker, battery side Q1 switch, AC side, lockable 3 AC CONNECTION N A B C, 4 × 70 mm² copper cables in from below PCS listed to AS/NZS 4777.2 grid settings made at commissioning

Grid connection

The power conversion system charges and discharges at 400 V three phase, with isolators on the battery side and the grid side.

  • 1PCS
  • 2Isolation
  • 3Connection

BenefitConnects to a standard site switchboard and can be isolated safely for work.

GS 01 GS 02 future future AC combiner cable route laid for four site switchboard add when the load grows 1 2 3

Add capacity later

The plinth, cable route and AC combiner can be built for the final number of cabinets, and cabinets added as the site's load grows. Up to twelve run in parallel, each with its own battery, inverter and controls.

  • 1Shared plinth
  • 2Spare ways
  • 3Add a cabinet

BenefitThe first stage is sized to the load today, and later cabinets connect to spare ways already in place.

≈ 320 µm coating steel panel pretreatment 1 2 3 salt spray industrial air geothermal H₂S COATING 1 ZINC PRIMER zinc rich epoxy, ≈ 60 µm protects the steel if scratched 2 BUILD COAT epoxy, ≈ 160 µm barrier to moisture and salt 3 TOPCOAT polyurethane, ≈ 80 µm UV stable, RAL 7035 C4: industrial and coastal sites C5: severe coastal, geothermal ISO 12944, chosen per site

C4 and C5 coating

Enclosures can be coated to C4 or C5 under ISO 12944 for coastal, industrial or geothermal sites, with a zinc rich primer, an epoxy build coat and a polyurethane topcoat.

  • 1Primer
  • 2Build coat
  • 3Topcoat

BenefitThe enclosure holds up in salt air and geothermal gases.

From cell to site

GridStore cabinets are built by specialist manufacturers to ASKA's specification, using cells from established cell makers. Each stage is tested to international standards, and ASKA designs, installs and commissions every system to New Zealand standards.

GS switchboard TUNGSTEN 1 cell 2 cabinet 3 site 4 operation LFP prismatic built to ASKA's spec designed, installed, commissioned scheduled every half hour
  1. 01

    Cell

    Lithium iron phosphate prismatic cells from established cell makers, tested for safe transport and for thermal runaway at cell level.

    • UN 38.3
    • UL 9540A cell test
  2. 02

    Cabinet

    Specialist manufacturers build each cabinet to ASKA's specification. The design is tested and certified by independent test houses such as TÜV Rheinland.

    • IEC 62619
    • IEC 63056
    • IEC 62933
    • UL 9540A
    • NFPA 69
  3. 03

    Site

    ASKA designs the installation, prepares the network application, and installs and commissions each system through licensed electrical partners.

    • AS/NZS 5139
    • AS/NZS 4777.2
    • AS/NZS 3000
  4. 04

    Operation

    ASKA Tungsten schedules each cabinet every half hour and reports each month against the business case.