Solar EPC Contractors
When designing commercial three-phase solar-plus-storage systems.
Commercial & Industrial Energy Storage
High Voltage ESS Battery Systems for Commercial Solar & C&I Projects
Scalable high-voltage LiFePO₄ battery architecture engineered for three-phase commercial inverters, higher-power energy storage and modular C&I applications.
LiFePO₄ architecture CAN / RS485 Series-connected modules
60128225kWh
ArchitectureSeries cluster
InterfaceCAN / RS485
Application3-phase C&I
01 Battery modules
02 Coordinated HV BMS
01 / Core Principle
What Is a High Voltage ESS?
A high-voltage ESS connects multiple battery modules in series to create a higher DC bus voltage suitable for commercial and industrial energy-storage equipment.
Compared with conventional 48V or 51.2V battery architecture, high-voltage battery systems are designed for applications where higher PCS or inverter power, lower DC current and larger energy capacity are required.
MODULAR SERIES ARCHITECTUREHigher DC bus
M1
LiFePO₄
M2
LiFePO₄
M3
LiFePO₄
M4
LiFePO₄
HV BMS
HV DCto PCS
High Voltage ESS
=
Higher DC Voltage+Lower Current
Power = Voltage × Current. Raising battery voltage allows the same power to be transferred at lower current.
02 / Architecture Decision
High Voltage vs Low Voltage Battery Storage
The right architecture depends on power level, inverter type, current design and project scale.
| Decision Factor | Low Voltage ESS | High Voltage ESS Recommended for C&I |
|---|---|---|
| Typical Architecture | ~48/51.2V class | Multiple modules in series |
| Typical Use | Residential / small off-grid | Commercial / industrial |
| Current at Same Power | Higher | Lower |
| Cable Requirements | Higher current design | Lower current for same power |
| Inverter Type | LV battery inverter | HV hybrid inverter / PCS |
| Expansion | Mostly parallel | Series/cluster architecture |
| System Complexity | Simpler | Requires coordinated HV BMS |
| Best Fit | Smaller systems | Higher-power C&I systems |
Why Voltage Matters
Same 50kW power.
One-tenth the current.
For an illustrative 50kW DC power transfer, raising voltage changes the current required by the conductors.
Built for Project-Scale Decisions
Who Should Choose a High Voltage ESS?
System Integrators
When matching battery clusters with compatible HV PCS or hybrid inverters.
Commercial Facilities
When larger power demand makes conventional 48V architecture less practical.
Distributors & Energy Solution Providers
When building a portfolio beyond residential wall-mounted and rack-mounted batteries.
03 / System Integration
Battery–Inverter Compatibility Is a System Requirement
High-voltage battery compatibility is not determined by voltage alone. The battery and inverter must match across the full DC operating voltage range, charge/discharge current, BMS communication protocol, protection logic and firmware configuration.
01
DC Voltage Window
Battery operating voltage must remain within the inverter or PCS DC range.
02
Charge & Discharge Current
Power and current limits must be coordinated.
03
Communication Protocol
CAN / RS485 or other supported protocols must be correctly mapped.
04
BMS Control Logic
SOC, alarms and charge/discharge limits must be exchanged correctly.
05
Firmware & Commissioning
Validated firmware combinations reduce field integration risk.
Battery cluster
HV BMS
CAN / RS485
PCS / inverter
30,000m²Approx. production base
100+R&D team
04 / Integrated Supply
High Voltage ESS Direct from a Solar Energy Manufacturer
High-voltage energy storage is a system-engineering task rather than a standalone battery purchase.
Anern’s product scope covers lithium batteries, solar inverters, PV modules and complete solar-storage solutions. Combined with a production base of approximately 30,000 m² and a 100+ R&D team, this enables Anern to support customers from battery selection through solar-plus-storage system configuration.
Battery ManufacturingCommercial LiFePO₄ systems
Inverter IntegrationHV inverter and PCS matching
Solar System EngineeringPV-to-storage configuration
OEM / ODM SupportProject and channel requirements
Commercial Battery Range
Scale the Battery Cluster to Your Project
Anern Store currently lists commercial high-voltage configurations at approximately 60kWh, 128kWh and 225kWh.
Compact C&I configuration60kWh
60kWh High Voltage LiFePO₄ Battery
A compact commercial configuration for distributed solar-plus-storage projects and scalable system planning.
- High-voltage LiFePO₄ architecture
- Commercial solar-storage application
- Configuration subject to inverter matching
Modular rack architecture128kWh
128kWh Industrial Rack Lithium Battery
A modular high-voltage rack architecture for higher-energy C&I applications and three-phase inverter integration.
- High-voltage LiFePO₄ architecture
- Commercial solar-storage application
- Configuration subject to inverter matching
Higher-capacity cluster225kWh
225kWh Commercial Solar Lithium Battery
A higher-capacity battery cluster option for commercial facilities, EPC tenders and integrated energy projects.
- High-voltage LiFePO₄ architecture
- Commercial solar-storage application
- Configuration subject to inverter matching
05 / Project Assurance
Global Compliance & Manufacturing Assurance
Anern supports international solar and energy storage projects through manufacturing, system integration and model-specific compliance documentation. For complete solar-plus-storage projects, compliance should be verified across the battery, inverter/PCS, PV module and complete ESS—not through a single certificate alone.
Market-by-Market Verification Guide
7 target market groups| Target Market | Lithium Battery / BESS | Solar Module | Inverter / Grid Connection | Project-Level Verification |
|---|---|---|---|---|
| European Union | IEC 62619; IEC 63056 where applicable | IEC 61215; IEC 61730; IEC 62941 manufacturing quality framework | CE-related safety requirements + destination-country grid code | Verify exact certificates against selected model and project country |
| United Kingdom | IEC-based battery safety requirements | IEC 61215; IEC 61730 | UK electrical requirements + applicable G98/G99 grid connection requirements | Confirm product-specific UK documentation before tender submission |
| United States | UL 9540 system requirements; UL 9540A thermal-runaway testing where applicable | Applicable UL / IEC PV module requirements | Applicable inverter safety, IEEE / utility interconnection requirements | AHJ, fire code and utility requirements must be reviewed project by project |
| Australia / New Zealand | IEC battery safety documentation + local ESS requirements | IEC 61215; IEC 61730 | Applicable AS/NZS inverter and grid-connection requirements | Verify equipment listing and installation requirements for the project |
| Middle East | IEC 62619 / IEC-based BESS specifications commonly requested | IEC 61215; IEC 61730 | Country / utility-specific inverter and grid requirements | Tender specifications and local authority requirements take priority |
| Africa | IEC-based battery safety documentation commonly used in international tenders | IEC 61215; IEC 61730 | Utility and country-specific grid requirements | Requirements differ significantly by country and project owner |
| Latin America | IEC-based battery / ESS safety requirements | IEC 61215; IEC 61730 | Country-specific inverter and utility grid code | Review local electrical, utility and import requirements before supply |
Reference Framework
Verify each system layer—not just one component.
Use model-specific documentation and destination-market requirements during project selection and tender review.
| System Layer | International Reference | Why EPC Buyers Care |
|---|---|---|
| 01PV Modules | IEC 61215 | Module design qualification / performance durability |
| 02PV Modules | IEC 61730 | PV module safety qualification |
| 03PV Manufacturing | IEC 62941 | Manufacturing quality system for certified PV modules |
| 04Lithium Battery | IEC 62619 | Industrial lithium battery safety |
| 05ESS Battery | IEC 63056 | Battery safety for electrical energy storage systems |
| 06North America ESS | UL 9540 | Complete ESS / equipment safety |
| 07North America Fire Testing | UL 9540A | Thermal runaway fire propagation test method |
| 08Inverter / PCS | Safety + local grid compliance | Grid connection varies by target market |
| 09Factory QMS | ISO 9001 | Quality management |
| 10Environmental Management | ISO 14001 | Environmental management |
| 11Occupational Safety | ISO 45001 | Occupational health & safety |
A component certificate does not automatically certify the complete ESS.
EPC contractors should verify compliance at the battery, inverter/PCS, PV module and complete-system level according to the destination market.
Project Configuration Path
Configure Your High Voltage ESS in 5 Steps
Define Power
kWDefine Energy
kWhConfirm HV Inverter / PCS
ModelVerify Communication & Compliance
ProtocolFinalize Battery Cluster & Documentation
ReadyEngineering Support
Need Help Matching a High-Voltage Battery With Your Inverter?
Send us your inverter model and project requirements for configuration support.
Technical Questions
FAQs of High Voltage ESS
Short answers for early-stage system selection, compatibility and compliance planning.
There is no single universal threshold used in all ESS applications. In commercial storage, ‘high voltage’ generally refers to series-connected battery architectures operating well above conventional 48/51.2V battery systems.
From Battery to Complete Solar-Storage System
Build a high-voltage ESS around your real project requirements.
Share your required power, energy, inverter model and target market. Anern can support battery selection and system configuration.
Start Your Project