Description
xOPTIM US A300 HY Hybrid Energy Storage System
Scalable 156.8kWh to 1565kWh Commercial Battery Cabinet
The Optim US A300 HY is a fully integrated commercial and industrial battery energy storage system designed for high power applications, electricity arbitrage, demand response and long duration backup.
Engineered with integrated hybrid inverter technology, advanced LFP lithium battery chemistry and intelligent energy management, the A300 HY delivers reliable 400Vac output with scalable capacity from 156.8kWh up to 1565kWh using multiple cabinets.
This system is ideal for factories, warehouses, commercial buildings, EV infrastructure, solar farms and microgrid projects requiring flexible expansion and dependable backup performance.
Key Features
- Hybrid inverter integrated system
- 400Vac three phase output
- Scalable from 156.8kWh to 1565kWh
- 50kW to 500kW inverter configurations
- 96% round trip efficiency at 0.5C-rate
- 0.5C continuous operation
- 98% depth of discharge
- More than 7000 cycles
- Fast transfer time under 10ms (on-grid to off-grid)
- IP55 outdoor rated enclosure
- Aerosol fire extinguishing system
- Air cooling with controlled HVAC
- Peak shaving, energy shifting, self-consumption and backup modes
- Parallel capability up to 5 systems
Scalable System Configurations
The A300 HY supports flexible cabinet and inverter combinations to match different commercial site requirements.
Single Cabinet Options
- 156.8kWh minimum configuration
- 219kWh configuration
- 250kWh configuration
- 313kWh standard configuration
Multi Cabinet Expansion
- 2 cabinets: 626kWh
- 3 cabinets: 939kWh
- 4 cabinets: 1252kWh
- 5 cabinets: 1565kWh
Inverter capacity scales from 50kW up to 500kW depending on the inverter quantity and system design.
Commercial Applications
- Electricity arbitrage
- Demand response participation
- Grid stabilisation support
- Renewable integration
- Long-duration backup
- Industrial peak shaving
- Solar self-consumption optimisation
Why Choose the A300 HY
The Optim US A300 HY provides a turnkey commercial energy storage solution with inverter integration, advanced safety systems and modular scalability. It reduces energy costs, maximises renewable utilisation and ensures business continuity during grid outages.
Specifications
xTechnical Specifications
General Data
| Model | M5 300kWh 1000V |
| Dimensions (W x D x H) | 1500 x 1300 x 2200 mm (without inverter) |
| Weight | 3.5 tons |
| Working Temperature Range | -20°C to 55°C (derating below 10°C or above 40°C) |
| Protection Class | IP55 |
| Altitude | ≤3000 m |
| Humidity | 0 to 95% |
| Fire Extinguishing | Aerosol |
| Cooling System | Air Cooling |
| Cooling Consumption (Cooling/Heating) | 5 kW / 6.4 kW |
| Auxiliary Power Consumption (continuous/peak) | 2.35 kW / 4 kW (incl. HVAC) |
| Max Parallel Systems | 5 |
| Anti Corrosion | C3 |
Battery Data
| Battery Type | Li-ion (LFP) |
| Nominal Capacity | 313 kWh |
| Continuous Operation C-rate | 0.5C |
| Max Operation Current | 180 A x 2 |
| Depth of Discharge | 98% (single string) |
| Cycle Life | >7000 |
| DC Voltage Range | 560 to 720 Vdc (single string) |
| Nominal Operation Current | 122.5 A x 2 |
| Round-trip Efficiency @ 0.5C | 96% |
Hybrid Inverter Data (On-grid Mode)
| Rated AC Power | 50 kW / 100 kW |
| Rated AC Output Voltage | 400 Vac |
| Rated AC Output Frequency | 50 / 60 Hz |
| Max AC Current | 76 A (linear load) |
| Overload Capacity | 110% |
| AC Power Factor | >0.99 (0.8 leading to 0.8 lagging) |
| CEC Efficiency | 97.4% (max 97.8%) |
| Isolation Type | Non isolation |
| Response Time (on-grid to off-grid) | <10 ms |
Communication and Operation
| Communication Type | RS485 (Modbus RTU) / LAN (Modbus TCP/IP) / CAN |
| Operation Logic | Peak Shaving, Energy Shifting, Self-consumption, Backup |
Certifications
| UN38.3, UN 3480, IEC62619, IEC62040-1, CE, UKCA (EMC/RED), VDE2510-50, UL1973, UL9540A, G99, VDE-AR-N 4105, EN 50549-1, EN 50549-10, EIFS 2018.2, IEC 62116, IEC 61727, IEC 60068, IEC 61683, EN 50530 |
Return Policy
xWe offer a 14-day, no-quibble returns or replacement policy because we want you to be totally satisfied with your purchase.
If you are unhappy in any way with your purchase, you can return it for a refund or a replacement, as long as you return it in the same condition as it arrived (original/undamaged packaging and product) and within 30 days of receiving it. We will pay for your return postage on a faulty item as long as you send it using Royal Mail 2nd class recorded delivery (for EU or International Shipments, you have to use our UPS account, we will provide you with a return label)
Please keep in mind the following:
- Items returned within 14 days but not in their original and undamaged packaging will also incur a -15% charge per package.
- If you return an item that doesn't adhere to our returns procedure or doesn't include a returns form, you may be liable for a £10 administration fee
- Individual items from a bundle can't be returned, refunded or exchanged. If you want a refund/credit/exchange for a bundle, all items must be returned to us.
Before you return your item, please make sure that:
- You follow our returns process (outlined below)
- The goods and packaging are undamaged
IMPORTANT: We need to be able to identify an item with your order. We can only do this if you follow our returns process. Please do not send us items back that do not follow this process as they cannot be identified properly and will not be replaced or refunded.
What delivery method do I need to use when returning an item?
You must send the goods back to us via Royal Mail 2nd class recorded delivery. Refunds on faulty items returned are reimbursed within 5 working days.
Can I return just one item from multiple purchases?
Yes. Once you start the returns process you will go to a page that will allow you to choose which items you want to be replaced or refunded.
Returning faulty goods
If your item is faulty, you need to follow the returns policy, where you will be able to state that it’s faulty. The product will then arrive at our warehouse for testing.
If your purchase is not within 14 days
You can still exchange your item for a different product or for credit to use on the Voltacon Solar or Ledison-led-lights.co.uk websites (-15% from the credit amount).
Returns outside of the 14-day period do not qualify for the free returns policy.
Returning an item within the warranty
If you have a warranty and want to return a faulty item, you just need to follow our standard returns process. When we receive your item, we will then check that it’s within warranty and for any faults before arranging a replacement.