Overview
QDTB® integrated PV+Storage+Charging solutions combine solar photovoltaic generation, battery energy storage, and EV charging infrastructure into a unified smart micro-grid system. This tri-integrated approach maximizes renewable energy utilization, reduces grid dependency and electricity costs, provides backup power resilience, and enables green transportation — all managed through an intelligent energy management system (EMS) that optimizes energy flows in real-time. Ideal for commercial complexes, industrial parks, logistics hubs, and smart campus applications.
Tri-Integration Architecture
Seamlessly integrates PV generation (100kW-5MW), battery storage (100kWh-10MWh), and EV charging (50kW-1MW) through a unified DC bus or AC micro-grid architecture with centralized EMS control.
Intelligent EMS
AI-powered Energy Management System that predicts solar generation, optimizes battery charge/discharge based on electricity tariffs, manages charging demand, and provides grid services for additional revenue.
Economic Optimization
Reduces electricity costs by 30-60% through self-consumption optimization, peak shaving, time-of-use arbitrage, and demand charge management. Typical payback period of 5-7 years with 20+ year system life.
Carbon Neutral Operations
Enables zero-emission operations by maximizing renewable self-consumption, supporting green fleet electrification, and providing verified carbon reduction data for ESG reporting.
PV + Storage + Charging Configurator
Configure a combined solar, storage and EV charging system with a complete equipment list and reference pricing.
Industry Context & Operational Characteristics
PV+Storage+Charging integrated system is a new-type comprehensive green energy system that organically combines photovoltaic power generation, battery energy storage and EV charging infrastructure. It breaks the independent operation limitation of single equipment, realizes coordinated power generation, energy storage and charging, and is widely used in industrial parks, commercial complexes, scenic spots and smart micro-grid scenarios. The system has multi-energy coupling, multi-load interaction and bidirectional energy flow characteristics, requiring power equipment to have multi-working condition adaptation, intelligent energy scheduling and high-efficiency collaborative operation capability.
Key Operational Challenges
Power Distribution Architecture
PV power generation unit → Energy storage BESS system → Intelligent EMS scheduling → EV charging load / Grid interaction
Core Equipment Selection
Multi-Functional Integrated Transformers
Recommended Model: Customized dual-mode PV & energy storage dedicated transformers
Core Configuration & Advantages
- Adapts to PV power generation step-up and energy storage bidirectional operation dual working conditions
- Optimized load matching design for EV charging nonlinear peak load
- Low-loss and low-harmonic overall optimization, improving comprehensive energy utilization efficiency
- Compact integrated structure, saving overall station construction space
Applications: PV-storage-charging integrated stations requiring multi-working condition adaptation.
Unified EMS Energy Management System
Recommended Model: Integrated cloud-based EMS platform
Core Configuration & Advantages
- Real-time monitoring, intelligent scheduling and optimal power flow distribution
- Automatically matches power supply and demand
- Prioritizes clean energy self-use, stores excess power
- Supplements power shortage from grid, maximizing system economic benefits
Switchgear & Substation Selection
Integrated Power Quality & Protection System
Integrates harmonic filtering, reactive power compensation, overvoltage and overcurrent protection functions. It solves comprehensive power quality problems caused by PV inverters, energy storage PCS and charging piles, ensuring stable and safe operation of the whole system.
Modular Prefabricated Substation
Integrated box-type substation integrates transformation, power distribution, protection and scheduling interfaces, supporting rapid modular construction of PV-storage-charging integrated stations, greatly shortening project construction cycle.
Integrated System Customized Optimization
Multi-Energy Coupling Adaptation
Equipment overall optimization for PV, storage and charging multi-working condition switching
Economic Operation Priority
EMS intelligent scheduling maximizes clean energy self-consumption rate and reduces operational costs
Modular Rapid Construction
Standardized modular design supports flexible capacity expansion and rapid project landing
Grid-Friendly Operation
Smooths new energy power fluctuation and reduces grid impact
Full Intelligent Monitoring
One-stop remote monitoring, data statistics and fault early warning for the whole system
Power Quality Optimization
The integrated system faces comprehensive power quality problems caused by PV inverters, energy storage PCS and charging piles. Integrated harmonic filtering, reactive power compensation, overvoltage and overcurrent protection functions ensure stable and safe operation of the whole system.
Key Benefits
1+1+1>3 Synergy Effect
Realizes complementary advantages of photovoltaic, energy storage and charging to break single function limitation
Maximized Economic Benefits
Improves clean energy self-consumption rate and realizes peak-valley arbitrage to reduce electricity costs
High-Grade Power Guarantee
Dual power supply of clean energy and grid + energy storage backup ensures power supply stability
Strong Scene Adaptability
Suitable for parks, commerce, scenic spots and other diversified comprehensive scenarios
Intelligent & Low-Carbon
Fully intelligent scheduling operation, realizing zero-carbon green energy local utilization
Technical specifications
| PV Capacity | 100 kWp - 5 MWp |
| Storage Capacity | 100 kWh - 10 MWh |
| Charging Power | 50 kW - 1 MW (DC fast) |
| System Voltage | AC 380V / 10kV / 35kV |
| EMS Platform | Cloud-based with local backup |
| Round-trip Efficiency | ≥92% (battery) / ≥98% (PV) |
| Grid Services | Peak shaving, DR, frequency reg |
| Payback Period | 5-7 years (typical) |
Standards Compliance
Applications
Related Products
Explore QDTB® product lines available for this solution
Oil Immersed Transformers
Customized dual-mode PV & energy storage dedicated transformers for system interconnection
Box-Type Substations
Modular prefabricated substations integrating transformation, distribution, protection and scheduling
Amorphous Alloy Transformers
Ultra-efficient transformers to minimize comprehensive system no-load losses
High Voltage Switchgear
MV switchgear for micro-grid protection and grid interconnection
Low Voltage Switchgear
LV distribution for integrated power management and charging loads
Why Choose QDTB® for PV + Storage + Charging
One-Stop Supply of Conventional & Solar Power Equipment
From power distribution system design to solar energy — transformers, switchgear, substations and solar equipment, sized and quoted in one place. Use our calculators to get a complete bill of materials and FOB price.