261kWh 120kW Solar Storage Charging System With DC Charger Renewable Transport Infrastructure Deployment Projects
Overview
As a self-contained solar-storage EV charging station, the MIDA 261kWh 120kW unit pairs high-density LFP battery cells with a bidirectional power conversion system to balance renewable generation, storage, and dispensing. The integrated EV charger is designed for commercial fleet depots and public sites where grid capacity is constrained. Solar PV input feeds the energy storage bank, an intelligent EMS orchestrates peak shaving, and CCS2 dispensing delivers rapid, reliable direct-current charging in both grid-connected and off-grid modes.
Delivering 261kWh of dispatchable energy and 120kW of clean power, this PV BESS charging station lets operators manage demand charges, extend transformer life, and accelerate fleet electrification. The 261kWh LFP battery bank stores abundant solar generation, and the 120kW bidirectional PCS delivers fast, flexible dispensing. Combined with intelligent peak shaving and off-grid readiness, the integrated EV charger offers a resilient, low-cost path to commercial fleet charging infrastructure. Standardized CCS2 dispensing and OCPP connectivity simplify network integration and billing. With modular scalability and factory pre-integration, the solar-storage EV charging station adapts to evolving site loads and supports long-term, sustainable transportation electrification goals.
Key Advantages
- Remote monitoring and diagnostics reduce on-site maintenance visits and improve uptime across widely distributed charging infrastructure deployments.
- A robust IP-rated enclosure withstands harsh outdoor conditions, delivering dependable solar energy storage and charging in diverse climates and temperatures.
- Built-in off-grid capability keeps the integrated EV charger operational at remote depots where grid connections are weak, costly, or entirely unavailable.
- Integrated PV BESS charging station architecture reduces the installation footprint and simplifies commissioning on constrained commercial sites, combining solar, storage, and dispensing in one factory-tested cabinet.
- High-cycle LFP battery chemistry provides long service life, superior thermal stability, and safe deep-discharge performance for demanding daily commercial fleet duty cycles.
- The bidirectional PCS enables both grid-connected and off-grid operation, supporting seamless islanding and smooth transitions that keep charging active during utility outages.

Integrated Solar + Storage Charging
This integrated PV BESS charging station combines solar generation, lithium battery storage and DC fast charging in one system, delivering clean, resilient energy for commercial EV fleets and microgrids.

Peak Shaving and Demand Management
Intelligent energy management stores low-cost and solar power in the battery and discharges it during peak demand, reducing demand charges, easing grid load and avoiding costly infrastructure upgrades.

Off-Grid and Grid-Connected Modes
Operating both off-grid and grid-connected, the station charges electric vehicles reliably even where grid capacity is limited, making it ideal for remote depots and renewable microgrid deployments.

Safe, Rugged and Certified
Automotive-grade LFP cells, a multi-level BMS, thermal management and an IP54/IP55 weatherproof cabinet ensure safe 24/7 commercial operation, backed by global certification and remote monitoring.
Technical Specifications
| Battery Capacity | 261kWh LFP battery bank |
| Charging Power | 120kW DC output |
| Battery Type | LiFePO4 (LFP), high-cycle chemistry |
| PCS | Bidirectional power conversion system |
| Solar Input | MPPT photovoltaic tracking input |
| Connector | CCS2 (DC fast charging) |
| Communication Protocol | OCPP 1.6J networked charging |
| Energy Management | Integrated EMS with peak shaving |
| Operation Mode | Grid-connected and off-grid |
| Cycle Life | 6000+ cycles at 80% DoD |
| Ingress Protection | IP54 / IP55 outdoor rated |
| Operating Temperature | -20°C to +50°C |
| Cooling | Intelligent forced-air thermal management |
| Compliance Standards | IEC 61851, IEC 62619 |
Application Scenarios
- Municipal transit and bus depots pursuing zero-emission fleet electrification goals with integrated solar and storage assets.
- Retail, hospitality, and workplace parking deploying solar PV plus storage to offset energy consumption and attract EV drivers.
- Commercial fleet depots seeking dependable solar-storage EV charging while minimizing grid demand charges and avoiding costly transformer upgrades.
- Off-grid and weak-grid sites requiring an integrated EV charger with autonomous, battery-backed operation independent of stable utility supply.
- Logistics hubs and last-mile delivery centers electrifying growing vehicle fleets through on-site renewable energy storage and fast DC charging.
Related MIDA energy storage charging solutions: 200kWh 120kW Intelligent Solar Storage EV, 200kWh 120kW CCS2 Direct Current Fast, 200kWh 120kW Liquid Cooled DirectCurrent Charger, 200kWh 120kW Factory Direct Solar Storage.
Frequently Asked Questions
What battery capacity and charging power options are available?
MIDA integrated PV BESS EV charging stations are available in 120kWh/60kW, 200kWh/120kW, 261kWh/120kW, 418kWh/180kW and 522kWh/240kW configurations. The battery capacity (kWh) buffers solar and grid energy, while the charging power (kW) determines how fast connected electric vehicles are charged.
How does the solar + storage integrated charging station work?
The system combines photovoltaic input, a lithium iron phosphate (LFP) battery pack, a bidirectional PCS and an intelligent EMS. Solar energy is stored in the battery during the day and released to charge EVs on demand, reducing grid dependence and enabling fast charging even where grid capacity is limited.
Can the BESS charging station operate off-grid or grid-connected?
Yes. Both modes are supported. In grid-connected mode it performs peak shaving and demand-charge management; in off-grid mode the solar array and battery storage power EV charging independently, making it ideal for remote fleets, microgrids and areas with weak grid infrastructure.
How does energy storage reduce charging costs and demand charges?
The battery charges when electricity is cheap or from solar, then discharges during peak charging periods. This peak-shaving and load-shifting lowers demand charges, avoids costly grid upgrades and maximizes self-consumption of renewable energy, improving the total return on investment.
Is the lithium battery safe for commercial deployment?
Yes. MIDA uses automotive-grade LFP (LiFePO4) cells with a multi-level BMS, temperature monitoring, fire suppression and IP54/IP55 weatherproof enclosures, complying with IEC/UL safety standards for reliable 24/7 commercial and fleet operation.
Where are integrated BESS EV charging stations typically used?
They are ideal for commercial fleet depots, highway service areas, microgrids, remote and off-grid sites, logistics parks and locations with constrained grid capacity, delivering fast, clean and resilient EV charging with solar self-generation and energy storage.

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