Wholesale Supply: Grid-Tied Inverter | 250kW/500kWh Commercial Energy Storage Cabinet | Global Delivery

Product Summary

Engineered for the rigorous demands of industrial peak shaving and EV ultra-fast charging, the Grid-Tied Inverter 250kW/500kWh commercial cabinet represents a paradigm shift in distributed energy assets. This fully integrated BESS unit combines Tier-1 LFP battery cells, a next-gen bi-directional PCS, and an active liquid cooling system into a single, outdoor-rated IP55 enclosure. For distributors and project developers, this unit offers a turnkey solution to reduce demand charges, capitalize on time-of-use arbitrage, and provide critical backup resilience. Backed by a 10-Year Performance Warranty and our global logistics network, we transform CapEx-intensive storage into a high-liquidity commercial asset.

Unlock superior LCOE and project bankability with factory-direct sourcing and 24/7 local O&M support.

Why C&I Sourcing Chooses Grid-Tied Inverter (High ROI)

Our wholesale procurement strategy focuses on minimizing total cost of ownership while maximizing dispatchable value. The Grid-Tied Inverter cabinet is purpose-built for high daily cycling, delivering measurable financial outcomes from day one.

• Maximum Peak Shaving ROI: The 500kWh usable capacity (100% DoD design) allows industrial facilities to shave over 85% of monthly demand peaks, reducing utility penalties by up to 40% annually.
• Arbitrage-Optimized Liquid Cooling: Maintains optimal cell temperature for consistent >92% round-trip efficiency, ensuring higher daily spread profitability compared to passive thermal management systems.
• Tier-1 LFP Cycle Life: Factory-tested for >8,000 cycles at 80% DoD, translating to a 15+ year operational lifespan with minimal degradation. This guarantees a superior Levelized Cost of Storage (LCOS) of <$0.05/kWh.
• Turnkey PV-Storage-Charging Synergy: Seamlessly integrates with existing solar canopies and DC fast chargers, enabling 100% renewable self-consumption for EV fleets and zero-carbon industrial parks.

Product Overview & Safety Architecture

The Grid-Tied Inverter cabinet redefines commercial safety and intelligence. At its core, a multi-layered Active BMS (Battery Management System) performs cell-level voltage, current, and thermal monitoring, triggering passive cell balancing to extend pack life. The system incorporates an Aerosol-based fire suppression system (NFPA 855 compliant) with distributed temperature sensors and gas detection, ensuring rapid thermal event suppression without damaging surrounding equipment.

For global compliance, the enclosure is rated UL 9540A for thermal runaway propagation and IEC 62477-1 for electrical safety, making it insurable for any commercial real estate or microgrid project. The integrated EMS (Energy Management System) supports Modbus TCP/IP and CAN bus, allowing direct dispatch via SCADA or cloud-based VPP platforms.

Technical Specifications

Every unit is factory pre-commissioned and 100% performance-tested prior to sea freight dispatch. The following datasheet reflects production-grade specifications for the 250kW/500kWh variant.

Technical Feature	Specification
Battery Chemistry	Tier-1 LFP (LiFePO4) – Grade A, prismatic cells
Usable Energy / Capacity	500 kWh (100% DoD), 614 kWh total nominal
System Power / PCS	250 kW bi-directional, 3-phase 400V/480V AC
Cooling / Thermal Control	Active Liquid Cooling (antifreeze fluid) + intelligent HVAC backup
Round-Trip Efficiency	92.5% at 25°C, 0.5C charge/discharge
Cycle Life	8,000 cycles to 80% SOH (EOL), 15+ year calendar life
Safety Certifications	UL 9540A, UL 1973, IEC 62619, UN38.3, CE, FCC Part 15
Enclosure Protection	IP55 (outdoor), anti-corrosion coating C5-M
Operating Temperature	-30°C to +55°C (derated above 45°C)
Communication Protocols	Modbus TCP/IP, CAN 2.0, IEC 61850, optional 4G/WiFi gateway

Application Scenarios

EV Supercharging Stations

Pair the Grid-Tied Inverter with 300kW+ DC chargers to buffer grid connections, reducing peak demand charges by up to 60% while enabling battery-assisted ultra-fast charging without costly utility upgrades.

Industrial & Manufacturing Parks

Shift energy-intensive production loads to off-peak hours, lowering electricity costs by €0.12-0.18 per kWh. The cabinet’s compact footprint (1.2m x 1.5m) allows direct placement near main switchgear rooms.

Micro-grid & Island Operations

Create resilient, diesel-free micro-grids for remote mines or data centers. The Grid-Tied Inverter supports seamless islanding (transition time <20ms) and black-start capability, ensuring continuous power for critical infrastructure.

Supply Assurance & Global Logistics

As a Tier-1 manufacturer with 15 years of power electronics heritage, we guarantee 20-day lead times for FCL orders (20′ or 40′ HC) ex-factory Shanghai. Our dedicated logistics desk manages door-to-door shipping including customs clearance, insurance, and inland trucking to project sites across Europe, Southeast Asia, Middle East, and North America. We provide local O&M support through certified partners in 12 countries, ensuring <4-hour remote response and <48-hour on-site parts replacement.

We offer OEM/ODM branding, custom EMS logic, and white-label software for qualified distributors. Request a project quote with your site load profile to receive a detailed ROI model and commercial proposal within 24 hours.

Frequently Asked Questions

What is the minimum order quantity (MOQ) for wholesale?

Our standard MOQ is 5 units (2.5MWh) for direct wholesale pricing. However, we support sample orders of 1-2 units for certified integrators and pilot projects. Please contact our sales engineering team for terms.

How does the 10-Year Performance Warranty work?

The warranty guarantees a minimum 70% retained capacity after 8,000 cycles or 10 years, whichever occurs first. It covers all manufacturing defects, BMS components, and liquid cooling system parts. We maintain local spare parts hubs in the Netherlands, Houston, and Singapore to minimize downtime.

Can this inverter support grid-forming mode for weak grids?

Yes. The bi-directional PCS features grid-forming algorithm (VSG) capable of operating in weak grid conditions (SCR <1.5) and providing synthetic inertia to micro-grids. Remote firmware updates are included for the EMS to adapt to evolving grid codes.

What certifications are provided for global shipping?

All units include UN38.3 and MSDS for battery transport, plus IEC 62109, UL 1741 (SA) and VDE-AR-N 4105 compliant labels. We provide country-specific certification support (CE, UKCA, AS/NZS 4777) upon request for a nominal lead time extension.

How is liquid cooling maintained on-site?

The system is fully sealed and requires zero on-site maintenance for the first 5 years. After that, a certified technician can perform a coolant loop check and top-up using standard propylene glycol mix. Our local O&M partners offer maintenance contracts starting at €0.003/kWh throughput.