eSpire Mini Energy Storage System

Fully Integrated, Pre-configured Turnkey Solution

The eSpire Mini Energy storage system is a fully integrated, pre-configured turnkey solution for Large Residential and Light Commercial Projects (3Ph 208/480Vac @60Hz). The eSpire Mini has numerous applications such as Microgrid, backup, off-grid peak shaving, time of use, self supply, demand response and Virtual Power Plant (VPP). With AC and DC Coupling options, indoor and outdoor installation and Scalable capacity from 81-266kWh per unit, the eSpire Mini is perfect for your next project.

Mini eSpire Front

Product Features

Turnkey Solution for Fast Install
Fully integrated, pre-configured package system reduces on-site installation time; includes inverter(s), battery trays, racks, BMS, Microgrid Controller, HVAC, fire suppression, islanding switch, and outdoor rated enclosure.

Built-in Microgrid Controls
Ability to integrate with solar, genset, wind, micro-turbines, utility, or other distributed energy resources.

Adaptive Intelligent EMS / Fleet Management
Intelligent software to reduce electricity cost, prepare for resiliency, and maximize return on investment. Remote operation and maintenance for multiple sites.

Safe Technology & Multi-level Protection
Tier 1 Lithium Iron Phosphate (LFP) chemistry for the highest level of safety, thermal stability, and reliability; An integrated, multi-level Battery Management System (BMS) monitors, optimizes, and balances the system.

Easy & Flexible to scale (Easy scalability)
This outdoor rated, modular solution can be expanded depending on the energy and power requirement at either 208Vac or 480Vac with a maximum of 2 units in parallel.

Excellent Local Support
Our US based technical support team can help you from project design to completion.

eSpire Mini Line Diagram

C&I Checklist form

Battery Capacity81/122/184 kWh122/184/246 kWh184/266 kWh
DC Data 
Battery ChemistryLithium Iron Phosphate
Cell Life Cycle80% Retention with 6,000 cycles @ 1C, 25oC
Cell Spec3.2Vdc / 100Ah
Cell Configuration/Pack2P16S
Pack Spec51.2 V / 200 Ah
Pack Nominal Energy (kWh)10.24 kWh
String Rack Configuration1P8S/1P12S/2P9S1P12S/2P9S2P9S/2P13S
Rack Nominal Voltage410/614/460 Vdc614/460/614 Vdc460/665 Vdc
Voltage Range350 – 750 Vdc
BMS Communication InterfaceRS485 via Serial, Ethernet via Cat 5 or Cat 6
BMS Communication ProtocolModbus RTU, Modbus TCP
AC Data 
PCS Rated AC Power30 kW60 kW90 kW
Rated Grid Voltage3Ph 480 Vac/208 1 Vac3Ph 480 Vac/2082 Vac3Ph 480 Vac/208 <strong>2) Vac</strong
Maximum Continuous Charge/Discharge Power30 kW60 kW90 kW
Grid Voltage Range± 15% / ± 10%
AC Rated Current36.1 / 83.3 Amps72.2 / 166.5 Amps108.3 / 250 Amps
Output THDi≤ 3%
Automatic Transfer Switch timing20ms
Grid Frequency Range50 Hz / 60 Hz ±2.5%
Grid Connected Power Factor1 (leading) ~ 1 (lagging)
Wiring Configuration3 Phase 4 Wire (3P4W Configuration)
PV Input (DC Coupled Only) 
PV Input Power45 kW90 kW135 kW
PV Input Voltage Range200 – 810 Vdc
MPPT per charge controller3 (3 x 35A)
General Data 
Dimensions without Clearance (W x D x H)82.7 x 51.18 x 97.05 in (2100 x 1300 x 2465 mm)
Weight of Whole SystemUp to 8860 lbs
Enclosure Degree of ProtectionNEMA 3R / IP54
Operating Temperature Range-22 F to 131 F (-30 C to 55 C)
Relative Humidity0 ~ 90% (No Condensing)
Max Altitude10,000 ft (3,000 m)
Noise Level70 dB
Cooling SystemForced Air Cooling
Communication InterfaceRS485, Ethernet, HMI
CertificatesUL1973, UL9540(A), UL1741-SB, IEEE-1547, IEEE-519, UL9540, CEC, SGIP, OGPe

1Only 30KW PCS configuration has 480/208 Vac output. 2 External Transformer is required for 208Vac step-down. 3 Each MPPT has 2 string inputs.

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