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Systems / Large / Utility-Scale Systems
Large / Utility-Scale Systems

Grid-grade platforms for utility & IPP projects.

At the top of the Arctium range, these are grid-grade platforms for utility, IPP and large industrial projects — 6 to 20 MWh per unit, engineered for SCADA/EMS integration, autonomous diagnostics, and multi-decade service life.

5 System models
6 – 20 MWh Capacity range
Up to 170 t Container weight
25-yr Design life (Grid 20 MWh)
Full lineup

Every large / utility-scale system

Every model in this catalog is presented as the Arctium platform it ships as; cell-level sourcing is confirmed per project during detailed engineering, not fixed at the catalog level.

Arctium Block 6
Arctium Block 6

Arctium Block 6

6.25 MWh · 4h · Liquid-Cooled Energy Storage System
6,250 kWh

A 4-hour-duration platform built on high-cyclic-life prismatic LFP cells, with 3-level BMS protection and support for back-to-back or side-by-side installation.

Rated Power 0.25P / 0.25P charge-discharge
Voltage 1331.2 Vdc (1040–1500 V)
AC Interface String or central PCS compatible
Cooling Liquid cooling
Ingress Protection IP55
Dimensions (W×D×H) 6058 × 2438 × 2896 mm
Weight 48 t
Operating Range −30 … +55 °C
Certifications IEC 62619, UL1973, UL9540A, UL9540, NFPA855
Arctium Tener S
Arctium Tener S

Arctium Tener S

Tener S · Advanced Liquid-Cooled Utility-Scale Storage Unit
6.017 MWh

A 0.5P-rate platform for faster charge/discharge duty than the 4-hour Block — built for sites that need shorter-duration, higher-power cycling.

Rated Power 0.5P
Voltage ~1331.2 Vdc (1040–1500 V)
AC Interface
Cooling Liquid cooling
Ingress Protection IP55
Dimensions (W×D×H) 6058 × 2438 × 2896 mm
Weight < 50 t
Operating Range −35 … +55 °C
Certifications IEC 62619, UL1973, UL9540, UL9540A, NFPA855/69
Arctium Grid 7 MWh
Arctium Grid 7 MWh

Arctium Grid 7 MWh

Grid 7MWh · Utility Net Series
7,044.7 kWh

25% smaller footprint and 40% higher energy density than the prior Grid-class container, with compartmentalized 2-hour fire-rated partitions.

Rated Power 588 Ah cells, ~0.5P class
Voltage 1331.2 Vdc
AC Interface
Cooling Liquid cooling, ≤ 3 °C cell ΔT
Ingress Protection IP55
Dimensions (W×D×H) 6058 × 2438 × 2896 mm
Weight ~52 t
Operating Range −30 … +55 °C
Certifications UL1973, UL9540/9540A, NFPA855, GB/T 36276
Arctium TenerStack
Arctium TenerStack

Arctium TenerStack

9 MWh class · Two-High Utility-Scale Platform
8.466 MWh

A stacked two-high container that pushes energy density above 611 kWh/m² — the highest-density platform in the Arctium range, rated to IEEE 693 High Level seismic.

Rated Power 0.5P
Voltage ~1331 Vdc (1040–1500 V)
AC Interface
Cooling Liquid cooling
Ingress Protection IP55
Dimensions (W×D×H) 6058 × 2438 × ≤4500 mm
Weight 35 t × 2
Operating Range −35 … +55 °C
Certifications IEC 62619, UL1973, UL9540A, IEEE 693 (seismic)
Arctium Grid 20 MWh
Arctium Grid 20 MWh

Arctium Grid 20 MWh

Grid 20MWh · World's First 20 MWh PV Storage, 25-Year Design Life
20.06 MWh

The flagship of the Arctium range: an ultra-large single-cabinet design that cuts land use 38% and is engineered to a full 25-year lifespan.

Rated Power 314 Ah cells
Voltage 1331.2 Vdc
AC Interface
Cooling Air-liquid cooling (~20% annual energy use)
Ingress Protection IP55 / C5
Dimensions (W×D×H) 5000 × 10000 × 4600 mm
Weight ~170 t
Operating Range −30 … +55 °C
Certifications UL1973, UL9540, IEC 61000, IEC 62477

Let’s size the right utility-scale system.

Capacities shown are per-unit nameplate figures. Every deployment is sized to the site's measured or forecast load, tariff structure and reliability target before quotation.