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Commercial Battery Energy Storage Systems (BESS) – 480V 3-Phase
Scalable 480 V solutions from Sol-Ark & Deka (40 kWh – 360 kWh+), purpose-built for industrial sites, large commercial buildings, and microgrids requiring higher voltage distribution.
Title 24 Compliance
Packages engineered to satisfy CEC JA12 battery sizing and UL 9540 / NFPA 855 safety requirements out-of-the-box.
System Design Assistance
SES and partners provide full design support, including technical review, energy modeling, and permit-ready documentation.
High Voltage, High Capacity
60 kWh to 360 kWh modular systems with Sol-Ark 60K inverters—indoor or outdoor-rated—designed to scale with your load.
Turnkey Sol-Ark Integration
All systems include AC/DC coupling, remote monitoring, and factory prewired control architecture for streamlined installation.
480 VAC Commercial Battery Energy Storage Systems
Our Sol-Ark and Deka based 480 VAC Commercial Battery Energy Storage Systems are designed specifically for larger commercial & industrial businesses and demanding off-grid industrial or remote sites. These 480V 3-phase solutions act like a powerful UPS integrated directly with your optional solar PV array. We specialize in scalable, 480 VAC storage systems ranging from 42 kWh up to 360 kWh, offering reliable backup power, and a foundation for robust microgrid capabilities. Explore the configurations below to find the 480 V storage solution that fits your project needs.
For our California customers, California's Title 24 Building Energy Efficiency Standards now mandate both solar PV and battery storage systems for most new commercial construction and high-rise multifamily buildings. Our 480 VAC BESS offerings are perfectly suited to help you meet these requirements efficiently.
480 VAC 3-Phase Commercial Battery System Building Blocks
Sol-Ark 60K-3P-480V Hybrid Inverter
60 kW three-phase, UL 1741-SB + IEEE 1547-2018, 97.5 % max efficiency, four-channel MPPT, AGS output.
Sol-Ark 60K-3P-480V Datasheet
Sol-Ark 480V L3-HV / HVR 60 kWh BESS
55.3 kWh usable per rack, LFP chemistry, 10-yr / 196 MWh warranty, indoor (IP20) or outdoor (IP55) enclosures.
Sol-Ark 480V L3-HV / HVR Battery Datasheet
Deka Duration DD-5300 Battery Clusters
5.3 kWh LFP modules, scalable, factory-matched HV combiner box and Sol-Ark communication loop.
Deka Duration DD5300 Datasheet
Sol-Ark L3-HV-60 480 VAC Indoor Battery Storage System Configurations
Our Sol-Ark L3-HV-60 indoor BESS systems scale from 60 kWh to 360 kWh using 1 to 6 modular LFP battery cabinets paired with a Sol-Ark 60K inverter. With support for up to 78 kW of PV input, integrated AC/DC coupling, IP20 indoor-rated enclosures, and automatic BMS configuration, the L3-HV delivers efficient, compact, and scalable storage—ready for fast deployment and long-term reliability.
Battery: Sol-Ark L3-HV-60KWH
Inverter: Sol-Ark 60K (60kW)
Cabinets: 1
Battery: Sol-Ark L3-HV-60KWH
Inverter: Sol-Ark 60K (60kW)
Cabinets: 3
Battery: Sol-Ark L3-HV-60KWH
Inverter: Sol-Ark 60K (60kW)
Cabinets: 6
Sol-Ark L3-HVR-60 480 VAC Outdoor Battery Storage System Configurations
These Sol-Ark L3-HVR-60 480 VAC outdoor BESS systems scale from 60 kWh to 360 kWh using 1 to 6 high-voltage LFP battery cabinets paired with the Sol-Ark 60K inverter. Built for rugged environments, each IP55-rated enclosure integrates AC/DC coupling, transfer relays, and optional fire suppression. The L3-HVR is ideal for peak shaving, EV integration, and larger outdoor commercial & industrial storage applications.
Battery: Sol-Ark L3 HVR-60KWH-60K
Inverter: Sol-Ark 60K-3P-480V
Cabinets: 1
Battery: Sol-Ark L3 HVR-60KWH-60K
Inverter: Sol-Ark 60K-3P-480V
Cabinets: 3
Battery: Sol-Ark L3 HVR-60KWH-60K
Inverter: Sol-Ark 60K-3P-480V
Cabinets: 6
Deka Duration DD5300 208 VAC Indoor Battery Storage System Configurations
These Deka DD5300-based indoor BESS solutions pair Sol-Ark 60K-3P-480V inverters with scalable LFP battery module clusters ranging from 42 kWh to 190 kWh per system. Built around 5.3 kWh modules and integrated high-voltage control hardware, these 480V configurations support single, dual, or multi-cluster designs—including HV hub support for larger builds.
Battery: Deka DD-5300
Inverter:Sol-Ark 60K-3P-480V
Cluster: Single
Battery: Deka DD-5300
Inverter:Sol-Ark 60K-3P-480V
Cluster: Dual
Battery: Deka DD-5300
Inverter: Sol-Ark 60K-3P-480V
Cluster: Multi (Requires HV Hub)
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