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High-efficiency energy storage, smart energy. Explore the innovation Product Center and open up a new future for green energy

ImaxPower 500kW PV-Storage-Diesel Grid-Connected and Off-Grid Microgrid System

ImaxPower 500kW PV-Storage-Diesel Grid-Connected and Off-Grid Microgrid System

Integrated PCS, MPPT, EMS, STS and distribution in one cabinet.
Supports PV, battery, diesel and grid coupling with seamless switch-over (active 0 ms / passive <10 ms).

Rated Power 250–500 kVA
Max Efficiency ≥99.3%
Battery Voltage 680–950 V DC
MPPT Channels 2 / 4
Parallel Units Up to 3
Protection IP54 / IP20

🛡️ Safety & Reliable
⚡ High Efficiency
🧠 Intelligent Control
🔧 Flexible Integration

Imax Power Technology Co., Ltd. · OEM Manufacturer

Description

IMAXPWR · SUNLIGHT SERIES

MSP500HCG2

500kVA PV-Storage Hybrid On-Grid / Off-Grid All-in-One Cabinet
Integrated PCS · MPPT · EMS · PCM — one cabinet, one complete microgrid. 10ms seamless switch-over, 99.3% charging efficiency, IP54 protection for outdoor harsh environments.
Rated Power
500 kVA
Switch-Over
≤10 ms
Efficiency
>99.3%
Protection
IP54
Parallel
3 Units Max
IMAXPWR MSP500HCG2 Sunlight Series 500kVA All-in-One Energy Storage Cabinet

Rated Power
500 kVA
🔋
Battery Voltage
680–950 V DC
☀️
MPPT Channels
4 × 120 kW
🛡️
Protection
IP54
🌡️
Temp. Range
-30 – +60 °C
⚙️
Max Parallel
3 Units

🏗️

Technical Architecture

The MSP500HCG2 integrates PCS (Power Conversion System), MPPT (4 independent channels), EMS (Energy Management System), and PCM (Power Control Module) into a single rugged cabinet.

Built on a string-architecture with decentralized fault tolerance — each PCS module can be independently disconnected without affecting others. Battery clusters connect independently; no DC combiner box needed.

🎯

Application Positioning

Designed for commercial & industrial energy storage, microgrids, off-grid mining, island power systems, emergency backup, and renewable energy integration.

Supports PV + storage + diesel + grid multi-energy coupling with grid-forming capability — turns unreliable utility feeders or isolated power sources into stable, economical green microgrids.

Product Advantages

Engineered for performance, reliability, and intelligent energy management
🛡️

Safety & Reliability

IP54 protection, built-in lightning protection, AC distribution, and 10ms seamless switch-over protect critical loads from grid anomalies.

High Efficiency

Charging efficiency exceeds 99.3%. Intelligent EMS scheduling enables peak shaving, valley filling, self-consumption, and anti-reverse flow.

🧠

Intelligent Control

Real-time monitoring of PV, storage, load, and diesel energy flow. Cloud-based management, remote monitoring, fault diagnosis, and OTA updates.

🔧

Flexible Integration

Supports PV, storage, diesel, and grid inputs. String-architecture allows modular expansion. Up to 3 units in parallel for capacity scaling.

Technical Specifications

MSP500HCG2 — Sunlight 500

Parameter Value Notes
System Parameters
Rated Power (Grid / Off-Grid) 500 kVA
Maximum Output Power 550 kVA
Grid / Off-Grid Switch-Over Active: 0 ms / Passive: <10 ms Seamless transfer
Max Parallel Units 3 Flexible capacity expansion
EMS Functions SOC balancing, peak shaving, self-consumption, anti-reverse, diesel hybrid, cloud Multi-mode
Protection Grade IP54 Dust & water resistant
Operating Temperature -30 °C ~ +60 °C Wide temperature range
Altitude ≤2000 m (derated to 4000 m)
Battery Parameters
Highest Battery Voltage 950 V DC
Lowest Battery Voltage 680 V DC
Rated Battery Voltage Range 680 – 950 V DC
Maximum Battery Current 200 A × 4 channels
PV Parameters (MPPT)
PV Power / MPPT Channels 120 kW × 4 channels 4 independent MPPT
Highest PV Voltage 950 V
Lowest PV Voltage 200 V
Rated MPPT Voltage Range 600 – 900 V
Maximum Input Current 200 A × 4 channels
AC Side (Grid-Tied)
Rated Output Power 500 kVA
Rated Grid Voltage 400 V / 230 V
Rated Current 724 A
THDi (>30% load) <3% High power quality
Power Factor 1.0
* Specifications subject to change without notice. Data from IMAXPWR official product documentation.

Application Areas

Where the Sunlight Series delivers reliable power

🏭
Commercial & Industrial
Peak shaving, backup power
🏝️
Island Microgrids
Off-grid renewable integration
⛏️
Mining & Remote Sites
Diesel hybrid, emergency power
🚗
EV Charging Infrastructure
PV-storage-charging integration
🏗️
Construction & Field Ops
Temporary power, emergency backup
🌾
Agricultural & Remote
Irrigation, off-grid farms

Electrical Topology & Energy Flow

Multi-energy coupling · String-architecture · Grid-forming

☀️ PV Array

MPPT ×4

⚡ DC Bus

🔋 Battery Bank

⚡ DC Bus

PCS

⚡ AC Bus

🛢️ Diesel Gen

⚡ AC Bus

🏭 Grid / Loads
🔵 Charging Mode: PV/Grid → DC Bus → Battery
🔴 Discharging Mode: Battery → PCS → AC Bus → Loads/Grid
🟡 Diesel Hybrid: Auto start/stop, grid-forming support

Protection & Safety

Comprehensive protection for personnel, equipment, and system integrity

Over Voltage Protection
AC/DC side protection
🔌
Over Current Protection
Short-circuit & overload
🌡️
Thermal Protection
Smart fan cooling, -30~60°C
🛡️
Short Circuit Protection
Fast fault isolation
🌩️
Lightning Protection
Built-in surge protection
📡
EMC Compliance
EN/IEC standards
IP54 Protection: Dust and water resistant enclosure, suitable for outdoor installation in deserts, coastal areas, and mining camps.

Maintenance & Service

Keeping your system running at peak performance

🔧

Routine Maintenance

  • Visual inspection of enclosure & connections
  • Air filter cleaning (fan-cooled units)
  • Firmware & EMS parameter verification
  • Battery health & SOC/SOH monitoring
🛠️

Troubleshooting

  • Real-time fault logging & alarm history
  • Remote diagnostic access via cloud
  • Modular design — single module isolation
  • Quick replacement of PCS modules
📞

Technical Support

  • 24/7 remote monitoring & support
  • On-site commissioning & training
  • Customized O&M service agreements
  • Warranty & extended service plans

Frequently Asked Questions

Quick answers to common questions about the MSP500HCG2

What energy sources does the MSP500HCG2 support?
It supports photovoltaic (PV), battery storage, diesel generator, and utility grid — four energy inputs for flexible multi-source coupling.
What is the grid/off-grid switch-over time? Will loads experience downtime?
Active switching is 0 ms; passive switching is <10 ms. This is a seamless transfer — critical loads do not experience interruption or restart.
Can multiple units be paralleled for higher capacity?
Yes, up to 3 units can be paralleled, offering flexible capacity expansion for larger power demands.
Is the cabinet suitable for outdoor installation?
Yes. With IP54 protection, dust and water resistance, fan cooling, and a -30°C to +60°C operating range, it is designed for outdoor use in harsh environments.
What EMS operation modes are available?
Supports SOC balancing, peak shaving, valley filling, self-consumption, surplus feed-in, anti-reverse flow, diesel hybrid, and cloud platform integration.
What is the maximum efficiency of the system?
Charging efficiency exceeds 99.3%, maximizing renewable energy utilization and reducing electricity costs.
Does IMAXPWR provide customized solutions?
Yes. IMAXPWR offers full customization — from system design and engineering to O&M services, tailored to specific project requirements.
What is the operating temperature range and altitude rating?
Operating temperature: -30°C to +60°C. Rated altitude: ≤2000 m (derated to 4000 m).

Related Products

Explore more IMAXPWR energy storage solutions

🔋
MSP250HCG2
250kVA Sunlight 250
MSP100HC
100kW Modular PCS
🔌
MSP110HS
110kW Liquid-Cooled PCS
🏗️
IX-PCS215-A2
215kW 1500V PCS
📦
BESS Cabinets
215kWh / 233kWh Systems

About IMAXPWR

ImaxPWR (Imax Power Technology Co., Ltd.) is a national high-tech enterprise specializing in new energy solutions. As an original equipment manufacturer, we provide integrated energy storage products and system solutions covering bidirectional PCS, DC/DC converters, energy management systems and energy storage cabinet integration.

Driven by technology innovation and quality control, ImaxPWR supports global customers in grid, microgrid, renewable energy and charging infrastructure applications with reliable and customized energy solutions.

📬 Contact Information

Phone
+86-13760212825
Email
info@imaxpwr.com
Company
Imax Power Technology Co., Ltd.
Shenzhen, China
© 2026 IMAXPWR (Imax Power Technology Co., Ltd.) — All rights reserved.

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