
PowerGrid is composed of integrated 20-feet containers with all-in-one design providing unique advantages for grid storage projects. Available with advanced liquid cooling system, AC-DC inverters and a choice of voltage and capacity configurations.
Maximum
Power output
Maximum
Storage capacity
Years
warranty + Support
Years
Capacity guarantee
Advantages
High density storage
up to 1.6MW/3MWh of battery storage capacity using best-in-class LFP battery cells from world leading providers.
Smart battery modules
Advanced battery pack monitoring system with active balancing and efficiency over 99%. Independent battery stack inverter and monitoring.
Independent stack inverters
Each battery stack connects to a separate inverter for optimum capacity and efficiency over the life of the BESS.
Advanced Controllers
Integrated Storage Module controller and Energy Management Controller with interface to existing energy platforms or our open cloud platform. Status notifications via internet, 3G or optional satellite link.
All-in-one
Integrated Auxiliary transformer, Firefighting system, isolated HVAC system with liquid cooling option, Power Conversion System, simplified site installation.
690Vac or 400Vac option
Inverter options with 200kW/690Vac or 125kW/400Vac. For grid and solar parks.
PowerGrid™ components
Intelligent grid storage system in a container.
CELLS
Lithium Iron Phosphate (LFP) cells from EVE or other leading manufacturer. standard format and capacity.
STACK
5 to 8 packs in series, with data bus, monitoring, data storage, active balancing of battery packs, stack DC bus monitoring, firefighting interface.
PACK
48 cells in series, with liquid temperature control system, active cell balancing and monitoring.
GPC
Storage Module Controller (GPC) to control and monitor all stacks and battery modules and monitor safety and store online statistical data for cells, battery packs and stacks.
INVERTERS
independent string inverters with 200kW 690Vac or 125kW 400Vac. Certified for Fingrid and Elering and for parallel operation and grid forming.
BESS
Power conversion units, auxiliary power, firefighting system, liquid temperature control system, weatherproof enclosures, sensors, switches.
Independent Inverters
Independent PCS for each battery stack allows variable DC voltage profiles to maintain optimum charge and discharge status of each battery stack over time. Can prevent capacity loss caused by cross current and increase lifetime discharge capacity.
Over time, charge and discharge performance of parallel battery stacks will vary due to divergences in the internal resistance of the cells. Tests have shown that:
- the capacity loss increases by up to 2 % per year when eight racks are connected in parallel compared to non-parallel connections.
- when two battery stacks are connected in parallel and the SOC differs by 8%, after a complete charge-discharge cycle, the total discharge capacity of the energy storage system with independent PCS inverters (or floating DC-DC controllers) is increased by up to 7%.
Independent stack inverters also add to the ESS reliability and availability as stacks can operate fully independently.
3 level Control Architecture
- Battery pack monitoring unit (BMU) cell balancing and monitoring ensures optimum cycle life and safety for each cell in a battery module.
- Stack Controller (CMU) in each battery stack for independent stack monitoring.
- Intelligent Storage System Controller (GPC) for cabinet monitoring and safety with separate Energy Management Controller to monitor and control PCS for energy trading or Frequency Reserve applications.

Guaranteed Performance
for 10 years in typical grid usage
All PowerCube™ containers and PowerGrid™ subsystems come with:
- 5 years parts and labour warranty with online support, next 2 business days on-site support and 96% availability guarantee.
- additional 10 years long-term support guarantee.
- 10 years (8,000 cycles) with guaranteed minimum storage capacity.
NOTE: additional warranty and full operation and maintenance services are available for some projects.

PowerGrid™ ESS
6.4MW 12.3MWh
Energy Storage Subsystem with MV transformer and control cabinet.
Fully containerized grid subsystem with 6.4MW 12MWh nominal capacity:
- FOUR units of 20C1600K BESS containers each with 8 independent battery stacks with dedicated Inverters.
- ONE unit of MTS6600K MV container with a 6600 kVA transformer and LV and MV switchgear and metering.
- ONE unit of BESS subsystem control system with networking and PLC controller for third party EMS FR services.
- All power and data cable for the subsystem to the MV container and control cabinet.
Also available with 2 or 3 units of 20C1600K BESS containers.
MTS series
Integrated medium voltage transformer system.

All-in-one transformers
MTS series are integrated 20-feet containers providing 10kV to 33kV medium voltage transformer with LV and MV switchgear, meters and control cabinet as well as auxiliary 400Vac power for a PowerGrid subsystems with 2 to 4 units of 20C1600K energy storage containers.
Specifications
for PowerCube™ 20C1600K and 20C1000K
DC specifications
| 20C1600K | 20C1000K6 | 20C1000K5 |
cell specification | LFP 3.2V 314Ah | LFP 3.2V 314Ah | LFP 3.2V 314Ah |
Cell cycle life @ 0.5C 25 °C | 10,000 cycles to 70% | 10,000 cycles to 70% | 10,000 cycles to 70% |
String configuration | 1P384S | 1P288S | 1P240S |
Number of modules per string | 8 | 6 | 5 |
Number of strings | 8 | 8 | 8 |
DC rate energy capacity | 3,086kWh | 2,315kWh | 1,929kWh |
Rated voltage | 1,228.8V | 921.6V | 768V |
Voltage range | 1,075.2V ~1,363.2V | 806.4V~1,022.4V | 672V~852V |
BMS communication interface | RS485 Ethernet | RS485 Ethernet | RS485 Ethernet |
BMS communication protocol | Modbus RTU, Modbus TCP | Modbus RTU, Modbus TCP | Modbus RTU, Modbus TCP |
AC Specifications
| 20C1600K | 20C1000K6 | 20C1000K5 |
Rated AC power | 1,600kW | 1,000kW | 1,000kW |
Maximum AC power | 1,760kW | 1,100kW | 1,100kW |
Rated voltage | 690V | 400V | 400V |
Grid voltage range | 586.5V~759V | 340V~440V | 340V~440V |
AC rate of current | 1,388.8A | 1,443.4A | 1443.4A |
Output THDi | <3% | <3% | <3% |
AC Power Factor | -1~+1 | -1~+1 | -1~+1 |
AC output | 3W + PE | 3W + PE | 3W + PE |
General data
| 20C1600K | 20C1000K6 | 20C1000K5 |
Dimensions (20ft HC) | 6,058x2,438x2896mm | 6,058x2,438x2896mm | 6,058x2,438x2896mm |
Gross weight | <31 T | <26.1 T | <23.6 T |
Degree of protection | IP54 C5M | IP54 C5M | IP54 C5M |
Operating temperature | -35°C~50°C | -35°C~50°C | -35°C~50°C |
Maximum working altitude | 2,000m | 2,000m | 2,000m |
Communication interfaces | RS485 ModBus TCP | RS485 ModBus TCP | RS485 ModBus TCP |
Certifications | UL9540A, IEC62619, UN35 | UL9540A, IEC62619, UN35 | UL9540A, IEC62619, UN35 |
Specifications
for MTS 3150K MTS5000K and MTS6600K transformer systems.
Specifications
| MTS3150K | MTS5000K | MTS6600K |
Rated power | 3150kVA | 5000kVA | 6600kVA |
Transformer type |
Oil-Immersed
|
Oil-Immersed
|
Oil-Immersed
|
LV LM voltage | 0.69kV/10kV ~ 35kV |
0.69kV/10kV ~ 35kV
|
0.69kV/10kV ~ 35kV
|
Transformer oil type | Mineral Oil (PCB Free) | Mineral Oil (PCB Free) | Mineral Oil (PCB Free) |
Transformer vector | Dy11 – y11 |
Dy11 – y11
|
Dy11 – y11
|
Cooling type | ONAN | ONAN | ONAN |
Auxiliary transformer |
SG-100kVA 0.69/0.4kV
Dyn11
|
SG-200kVA 0.69/0.4kV
Dyn11
|
SG-200kVA 0.69/0.4kV
Dyn11
|
Minimum peak efficiency index | Tier 2 In Accordance with EN 50588-1 | Tier 2 In Accordance with EN 50588-1 | Tier 2 In Accordance with EN 50588-1 |
Rated grid frequency |
50Hz/60Hz
|
50Hz/60Hz
|
50Hz/60Hz
|
Protection
| MTS3150K | MTS5000K | MTS6600K |
HVC transformer protection |
MV Vacuum circuit breaker |
MV Vacuum circuit breaker SF6 Gas Insulated |
MV Vacuum circuit breaker SF6 Gas Insulated |
Transformer protection | Oil-temperature Oil-level Oil-pressure | Oil-temperature Oil-level Oil-pressure | Oil-temperature Oil-level Oil-pressure |
AC input protection | ACB (1,600A/3P)×2 | ACB (1,600A/3P)×3 | ACB (1,600A/3P)×4 |
MV Relay Protection | 50/51, 50N/51N | 50/51, 50N/51N | 50/51, 50N/51N |
LV Overvoltage Protection
| Type I+II | Type I+II | Type I+II |
General data
| MTS3150K | MTS5000K | MTS6600K |
Dimensions (20ft GP) | 6,058x2,438x2591mm | 6,058x2,438x2591mm | 6,058x2,438x2591mm |
Gross weight | <16 T | <20 T | <25 T |
Degree of protection | IP54 C5M | IP54 C5M | IP54 C5M |
Operating temperature | -40°C~60°C | -40°C~60°C | -40°C~60°C |
Maximum working altitude | 1,000m | 1,000m | 1,000m |
Communication interfaces | RS485 ModBus TCP | RS485 ModBus TCP | RS485 ModBus TCP |
Certifications | IEC 62271-202, EN 50588-1, IEC 60076, IEC 62271-200, IEC 61439-1 | IEC 62271-202, EN 50588-1, IEC 60076, IEC 62271-200, IEC 61439 | IEC 62271-202, EN 50588-1, IEC 60076, IEC 62271-200, IEC 61439 |
Grid storage in 150 days or less.
Our project management and manufacturing teams are ready to support you.