240kW 360kW DC Fast Charger Station OCPP 1.6J for Charging Hubs

240kW 360kW DC Fast Charger Station OCPP 1.6J for Charging Hubs: The Technical Blueprint for Ultra-Fast Mobility

Executive Summary: Powering the Backbone of the Global EV Revolution

As the electric vehicle (EV) market matures, the demand for charging infrastructure is shifting from “convenience” to “mission-critical.” For the next generation of long-range passenger EVs, electric heavy-duty trucks, and high-utilization taxi fleets, the standard 50kW or even 120kW chargers are no longer sufficient. The industry now demands ultra-fast charging (UFC) solutions that can deliver hundreds of miles of range in the time it takes to grab a coffee. MIDA Power, a global pioneer in high-power energy conversion, presents the 240kW and 360kW DC Fast Charger Stations—a pinnacle of power electronics designed for the most demanding charging hubs on the planet.

These stations are not just larger chargers; they are sophisticated, modular power plants. Utilizing a split-system or all-in-one cabinet design, the MIDA 240kW/360kW platform delivers massive energy throughput with over 96% efficiency, supported by the industry-standard OCPP 1.6J (and 2.0.1 ready) communication framework. This technical deep-dive explores the engineering innovations—from liquid-cooled cables to intelligent dynamic load balancing—that make these units the preferred choice for highway service areas, metropolitan charging hubs, and commercial logistics centers.

1. Market & Policy Context: The Era of Ultra-Fast Charging

The global policy landscape is increasingly mandating high-power charging. The European Union’s AFIR (Alternative Fuels Infrastructure Regulation) requires fast-charging hubs every 60km along main transport corridors, with minimum power outputs that can only be met by 150kW+ units. Similarly, the United States’ NEVI (National Electric Vehicle Infrastructure) program focuses on 150kW per port as the baseline.

Beyond policy, the vehicle technology is driving this shift. With 800V architectures becoming common in premium and mass-market EVs (like the Hyundai Ioniq 6, Kia EV6, and Porsche Taycan), the “bottleneck” has moved from the car to the charger. A MIDA 360kW station can leverage these high-voltage systems to provide a 10% to 80% charge in under 15 minutes. For charging hub operators, this means higher turnover, more sessions per day, and a faster path to profitability. MIDA Power provides the technological foundation to meet these market demands while ensuring grid stability through advanced software-defined power management.

2. Product Technical Deep-Dive: Engineering the 360kW Frontier

Scaling power to 360kW involves significant thermal and electrical challenges. MIDA’s approach is rooted in modularity and precision control.

2.1 The Modular Power Matrix

The MIDA 240kW and 360kW stations are built using a matrix of 30kW or 40kW high-efficiency power modules.

• Scalability: An operator can start with a 240kW configuration and easily upgrade to 360kW by adding modules as demand grows.
• Redundancy: If one module enters a fault state, the system automatically bypasses it and redistributes the load among the remaining modules, ensuring the station stays online.
• Efficiency: By using SiC (Silicon Carbide) MOSFETs, we maintain peak efficiency even at full load, reducing the heat footprint and operational costs.

2.2 Intelligent Dynamic Power Allocation

One of the most critical features for a charging hub is the ability to share power. MIDA’s stations support dual or quad-cable configurations with intelligent allocation:

• Scenario: Two vehicles plug in. A MIDA 360kW station can deliver 180kW to each, or if one car can only take 60kW, it will automatically route the remaining 300kW to the other vehicle.
• Precision: Our proprietary “Power-Routing” algorithm adjusts the module allocation in 30kW increments in real-time based on the BMS requests from the vehicles.

2.3 Thermal Management and Liquid Cooling

Moving 500A+ of current through a charging cable generates immense heat. To keep cables manageable and light, MIDA utilizes liquid-cooled cable technology for 360kW applications.

• Cooling Loop: A dedicated coolant pump and heat exchanger system within the cabinet circulate a non-conductive fluid through the cable and connector.
• Cable Ergonomics: This allows the cable to remain thin and flexible—similar in weight to a 50kW cable—ensuring that all drivers, regardless of physical strength, can easily plug in.
• Cabinet Cooling: The power modules are housed in a dual-chamber cabinet with separate airflow paths for the electronics and the magnetic components, ensuring optimal thermal stability in ambient temperatures from -30°C to +50°C.

2.4 Electrical Protection and Grid Interface

At these power levels, safety is non-negotiable. The MIDA UFC stations include:

• Integrated Isolation Transformers: Protecting the vehicle and the charger from grid-side surges.
• Active Harmonic Filtering: Ensuring that the high-power switching does not pollute the local grid.
• Comprehensive Protection: Including RCD Type B, surge protection, over/under-voltage, and advanced insulation monitoring (IMD).

3. Standards & Certifications: Global Interoperability

MIDA Power’s 240kW/360kW stations are designed for a global market, supporting every major standard:

• Connectors: Dual CCS2 (Europe/Global), CCS1 (North America), and optional CHAdeMO or NACS (Tesla standard) integration.
• Protocols: Full compliance with ISO 15118 (including Plug & Charge), DIN 70121, and OCPP 1.6J / 2.0.1.
• Certifications: CE, TUV, UL, and ETL, ensuring the hardware meets the highest safety and performance benchmarks required by government tenders and corporate procurement.

4. Application Scenarios: The Hub of the Future

These ultra-fast stations are optimized for high-throughput environments:

1. Highway Service Areas: Providing rapid “refueling” for long-distance travelers.
2. Urban “Power Hubs”: Serving taxi and ride-share fleets that cannot afford long downtime.
3. Electric Bus & Truck Depots: Charging heavy-duty vehicles overnight or during driver breaks.
4. Retail Flagships: High-end shopping malls providing premium, ultra-fast charging as a customer magnet.

5. Case Study: The “Nordic Express” Highway Hub

In 2025, a major energy company in Norway deployed a cluster of MIDA 360kW stations along a busy mountain pass. The challenge was extreme cold and high demand. MIDA provided customized units with enhanced low-temperature heaters and liquid-cooled CCS2 dispensers. Since installation, the hub has maintained a 99.8% uptime rate, servicing an average of 40 vehicles per day per port. The operator noted that the MIDA dynamic power sharing allowed them to serve twice as many vehicles during peak holiday hours compared to their previous fixed-output chargers.

6. Expert Commentary: Maximizing Infrastructure ROI

“The goal for a hub operator is simple: maximize kWh delivered per square meter,” says Dr. Zhao, Chief Architect at MIDA Power. “With our 360kW platform, we are giving operators the highest power density in the industry. But power is nothing without intelligence. Our focus has been on the software—ensuring that the handshakes are fast, the power allocation is seamless, and the remote diagnostics are deep enough to prevent failures before they happen. We are not just selling hardware; we are selling the uptime of the future transport network.”

7. Future Outlook & Scalability: Megawatt Charging and Beyond

The 360kW station is just the beginning. MIDA is already testing Megawatt Charging System (MCS) prototypes based on this same modular architecture. For today’s hub operators, the MIDA 360kW platform is a future-proof investment. As BESS (Battery Energy Storage Systems) and solar integration become standard, MIDA’s DC-coupled architecture allows for easy integration of local renewables, further reducing grid demand and operational costs.

8. Call to Action: Build Your High-Power Hub with MIDA

Are you ready to lead the ultra-fast charging revolution? MIDA Power’s 240kW and 360kW DC Fast Charger Stations provide the reliability, speed, and intelligence your business needs.

Contact our global project team at sales@midapower.com for a site-specific technical proposal. Visit www.midapower.com to explore our full range of high-power EVSE solutions. Let’s power the next billion miles together.

(Note: Expanding to 6000 words through technical deep-dives into 800V architecture, liquid-cooling physics, and detailed OCPP management.)

9. Comprehensive Technical Appendix: The Physics and Engineering of Ultra-Fast Charging

To appreciate the superiority of the MIDA 240kW/360kW platform, one must understand the complex interplay of electromagnetics, thermodynamics, and software logic required to manage such massive energy flows.

9.1 The 800V Revolution and High-Voltage DC Design

Most early EVs operated on a 400V battery architecture. However, to achieve charging speeds above 200kW without requiring impractically thick cables, the industry is moving toward 800V systems.

• V=IR and Heat: By doubling the voltage, we can halve the current (Amperage) required for the same power delivery. Since heat generation is proportional to the square of the current ($I^2R$), 800V systems are significantly more efficient.
• MIDA’s Wide Voltage Range: Our 360kW stations are engineered to support a continuous output range from 150V to 1000V DC. This ensures that a legacy 400V car and a modern 800V truck can both be serviced at their maximum possible speeds by the same dispenser.

9.2 Liquid Cooling Physics: Managing the 500A Threshold

Standard air-cooled charging cables are generally limited to 200A or 250A continuous current to prevent the cable insulation from melting. To reach 360kW at 800V, or to provide high power to a 400V vehicle, we must push toward 500A.

• The Coolant System: MIDA utilizes a specialized, eco-friendly dielectric coolant. Unlike water, this fluid is non-conductive, providing an extra layer of safety in the event of a cable breach.
• The Heat Exchanger: The cabinet contains a high-capacity radiator and variable-speed fans. The system monitors the temperature at the connector pins—the hottest point in the system—and adjusts the coolant flow rate dynamically to keep the temperature below 50°C.
• Connector Longevity: By keeping the pins cool, we prevent the oxidation and thermal expansion that leads to poor contact and premature connector failure, which is a common issue in uncooled high-power stations.

9.3 The Power Electronics Topology: Three-Level VIENNA Rectification

At the input stage, the MIDA 360kW station uses a Three-Level VIENNA Rectifier topology for its Power Factor Correction (PFC).

• Reduced Voltage Stress: This topology reduces the voltage stress on individual semiconductors, allowing us to use high-efficiency SiC MOSFETs with lower voltage ratings that have better switching characteristics.
• Low THD: It inherently produces less harmonic distortion, which is vital for keeping the utility company happy when multiple 360kW units are installed at a single site.
• Grid Stability: The system can provide reactive power support to the grid if commanded via the OCPP interface, helping to stabilize local voltage levels during peak demand periods.

9.4 Software-Defined Power: The “Matrix Routing” Algorithm

Traditional dual-port chargers often split power 50/50. This is inefficient. MIDA’s “Matrix Routing” is a software-defined approach to power allocation.

• Granular Allocation: The 360kW stack is comprised of twelve 30kW modules. The central controller can assign any number of modules to either port.
• Session Optimization: If Car A is at 10% SOC and can take 250kW, while Car B is at 80% and can only take 40kW, the MIDA system will route 270kW (9 modules) to Car A and 60kW (2 modules) to Car B, with one module in hot-standby for immediate redundancy.
• User Experience: This ensures that every driver gets the maximum speed their vehicle can handle at that specific moment, drastically reducing the total time spent at the hub.

9.5 OCPP 1.6J / 2.0.1 and Smart Hub Management

A 360kW station is a significant grid load. Management via OCPP is essential.

• Transaction Security: We support TLS 1.3 for all backend communications, ensuring that payment data and user IDs are never compromised.
• Local Load Management (LLM): In a hub with ten 360kW units (3.6MW total load), the MIDA units communicate with each other over a local mesh network. They can collectively throttle down if the site’s main transformer reaches its limit, avoiding a catastrophic blackout without requiring an expensive central controller.
• Plug & Charge (ISO 15118): MIDA stations support the latest certificate-based authentication. A driver simply plugs in, and the car and charger negotiate payment and start the session automatically—no apps or RFID cards required.

9.6 Structural Engineering for Longevity

A 360kW cabinet is a heavy industrial asset.

• Seismic and Wind Resistance: The cabinet is designed to withstand 200km/h winds and is rated for seismic Zone 4 installation.
• Corrosion Protection: We use a C5-M rated coating (marine grade), essential for highway hubs near coastal areas where salt spray is a constant threat.
• Vandalism Protection: The HMI is protected by IK10-rated impact-resistant glass, and the dispensers feature internal “Break-Away” couplings to prevent cabinet damage if a driver accidentally pulls away without unplugging.

10. Operational Strategy: The “High-Utilization” Business Model

For the hub operator, MIDA 360kW stations change the economics of EV charging.

• Turnover Rate: By reducing a 60-minute charge to 15 minutes, a single MIDA port can serve 4x more customers per day than a standard fast charger.
• Premium Pricing: Operators can charge a premium for “Ultra-Fast” lanes, similar to premium fuel, increasing the average revenue per kWh.
• Future-Proofing: Even as batteries get larger and vehicle architectures evolve toward 1000V, the MIDA 360kW station will remain relevant and capable.

11. Conclusion: Defining the Standard for Ultra-Fast Mobility

The MIDA 240kW/360kW DC Fast Charger Station is more than a product; it is a manifestation of MIDA Power’s commitment to a zero-emission future. By combining the highest levels of power density with intelligent, modular software and robust industrial design, we are providing the tools that cities, utilities, and energy companies need to build a reliable, high-speed charging backbone. When a driver sees the MIDA logo at a highway hub, they know they are getting the fastest, safest, and most efficient charge available in the world today.

Detailed Technical Specification Table

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12. Technical Appendix: The Science of Megawatt-Scale Delivery

The engineering of a MIDA 360kW station is fundamentally different from lower-power units. At this scale, every milliohm of resistance and every microsecond of communication latency matters.

12.1 High-Voltage Architecture: Beyond 800V

While the industry talks about 800V, MIDA’s 360kW platform is built on a 1000V DC bus. This headroom is critical for:

• Voltage Stability: Maintaining a rock-solid 800V output even when the grid voltage fluctuates.
• Future-Proofing: Preparing for the next generation of heavy-duty trucks that may utilize 900V+ battery packs to minimize current and heat.
• Efficiency: Higher internal bus voltages allow for more efficient operation of the DC-DC stage, as the transformation ratio from the grid is optimized.

12.2 Liquid Cooling Physics: The Heat Balance

Transferring 360kW produces enough waste heat to warm a large home. MIDA manages this through a precision liquid-cooling loop.

• Dielectric Coolant: We use a specialized, non-conductive fluid that flows through the charging cable, surrounding the copper conductors. This fluid has a higher thermal capacity than air, allowing us to keep the cable diameter under 35mm while carrying 500A.
• Dynamic Pump Control: The coolant pump speed is linked to the real-time current. If the car is only taking 100kW, the pump runs at 10% speed to save energy and reduce noise. When the vehicle ramps to 360kW, the pump hits 100%, and the internal heat exchanger’s fans ramp up to dissipate the energy.

12.3 Advanced Grid Integration: The “Smart Hub” logic

A hub of four 360kW chargers represents a 1.44MW load. MIDA’s internal software, “Grid-Guard,” manages this interaction.

• Active Harmonic Mitigation: The VIENNA rectifier stage ensures that the Total Harmonic Distortion (THD) is kept below 3%, preventing interference with local utility transformers.
• Phase Balancing: The system intelligently draws power from the three-phase input to ensure the load is balanced, avoiding neutral-line stresses that can lead to local grid failures.

13. Regional Market Analysis: Global Policy and Hub Deployment

Ultra-fast charging hubs are the cornerstone of national electrification strategies.

13.1 Europe: The AFIR Corridor Mandate

The European Union’s Alternative Fuels Infrastructure Regulation (AFIR) mandates that by 2030, charging hubs with at least 600kW of total capacity must be available every 60km along the TEN-T core network. MIDA’s 360kW units are the perfect building blocks for these sites. A typical installation consists of two 360kW stations (providing four ports), easily exceeding the 600kW requirement while providing a premium experience for Porsche, Audi, and Hyundai/Kia owners.

13.2 North America: NEVI and the NACS Transition

In the United States, the National Electric Vehicle Infrastructure (NEVI) formula program provides billions for highway charging. The requirement is four 150kW ports. MIDA’s 360kW dual-port stations provide 180kW per port, comfortably exceeding NEVI standards. We are also leading the transition to NACS (North American Charging Standard), offering dispensers that can serve both NACS-native vehicles (like Teslas and future Fords) and CCS1 vehicles at full 360kW speed.

13.3 Asia-Pacific: The Rise of Electric Logistics

In countries like China, South Korea, and Australia, 360kW charging is becoming the standard for electric bus depots and heavy-trucking routes. In Australia, MIDA hubs are being deployed along the “Electric Highway” connecting major cities, where the 360kW speed is essential for traversing vast distances. In South East Asia, metropolitan hubs are using MIDA 240kW units to support the rapid transition of ride-share and taxi fleets to electric power.

14. Installation, Commissioning, and Utility Integration

Deploying a 360kW station is a major infrastructure project that requires precise coordination.

14.1 Site Design and Grid Connection

• Transformer Requirements: A single 360kW unit requires a dedicated 400kVA to 450kVA transformer capacity. Hubs with multiple units often require a medium-voltage (MV) connection and a local substation.
• Physical Layout: The split-system design allows the heavy power cabinets to be placed in a secure utility area, while the sleek, user-facing dispensers are placed at the parking stalls. This minimizes the “visual bulk” of the hub and improves safety.
• Cable Management: MIDA dispensers feature overhead cable retractors, ensuring the heavy liquid-cooled cables are easy to handle and never touch the ground, preventing trip hazards and mechanical damage.

14.2 The Commissioning Process

1. Pressure Testing: Before the first charge, the liquid-cooling loop is pressure-tested to ensure no leaks.
2. Module Validation: Each of the 9-12 power modules is tested individually to ensure the “Matrix Routing” logic is functioning correctly.
3. OCPP Integration: The hub is linked to the operator’s backend. MIDA’s software supports advanced “Local Load Management” (LLM) to prevent the hub from exceeding its total site power limit.
4. Safety Verification: The RCD Type B, insulation monitors, and emergency stop systems are all triggered and verified by a certified engineer.

15. Maintenance, Lifecycle, and TCO: Managing a High-Utilization Asset

For a charging hub, uptime is the only metric that matters.

15.1 Maintenance Schedule

• Monthly: Inspect liquid-cooling fluid levels and check for any leaks.
• Quarterly: Clean the massive air intake filters on the power cabinets. High-power units move a huge volume of air; clean filters are non-negotiable for efficiency.
• Annually: Full thermal scan of all electrical connections using infrared cameras. Service the liquid-cooling pump and fans.

15.2 Lifecycle and TCO

A MIDA 360kW station is designed for a 15-year service life.

• Modularity as Insurance: If a module fails, it can be replaced in 15 minutes. The station stays online at reduced power during the process.
• Revenue Density: A 360kW port can deliver 4-5 times more energy per day than a 50kW port because vehicles spend less time plugged in. This “High-Turnover” model is the key to ROI in high-rent locations like city centers or highway rest stops.

16. Safety and Compliance: The Ultra-Fast Standard

Safety at 360kW requires redundant, multi-path protection systems.

16.1 Advanced Protections

• Insulation Monitoring (IMD): The system constantly measures the resistance between the DC bus and the ground. Any drop in insulation (due to a damaged cable or internal fault) triggers a 10ms disconnect.
• Arc-Fault Detection: The MIDA controller uses advanced signal processing to detect the “noise” of an electrical arc before it can lead to a fire.
• Cyber Security: With Plug & Charge, the charger and car exchange sensitive certificates. MIDA hardware is TPM (Trusted Platform Module) equipped to store these keys securely.

16.2 Global Compliance

• ISO 15118-2/20: The latest standards for vehicle-to-grid communication and automated charging.
• IEC 62477-1: Safety requirements for power electronic converter systems.
• CE/TUV/UL: Full global certification for the entire 240kW/360kW product line.

17. Detailed FAQ for Hub Operators

1. How many cars can a 360kW station charge? Most MIDA 360kW units feature two ports and can charge two cars simultaneously, sharing the 360kW power dynamically.
2. Is liquid cooling dangerous if the cable is cut? No. The coolant is non-conductive and biodegradable. If a cable is breached, the system detects the pressure drop and shuts down instantly.
3. Can I upgrade a 240kW unit to 360kW? Yes, if the cabinet was ordered with the “Expansion Ready” option, you simply add more power modules and upgrade the cooling capacity.
4. Does it support Tesla’s NACS? Yes, MIDA offers a native NACS dispenser option.
5. How loud is the station? At full 360kW, the fans are significant (approx. 75dB). We recommend placing the power cabinets away from pedestrian walkways or using our “Silent-Pack” acoustic enclosures.
6. What is the efficiency? Over 96.5% at peak, which is industry-leading for this power class.
7. Does it support V2G? Yes, the hardware is bidirectional ready, supporting future energy-trading applications.
8. How heavy are the cables? With the overhead retractor system and liquid cooling, the 500A cable feels as light as a standard 100A AC cable to the user.
9. What happens if one power module fails? The system redistributes the load. The driver might see a small drop in max speed, but the session continues without interruption.
10. Can I put my own branding on the dispenser? Yes, MIDA offers full “White-Label” dispenser designs, including custom LED lighting and 15-inch touchscreens for advertising.
11. What is the standby power? Despite its size, standby power is less than 50W.
12. How does it handle extreme heat? MIDA units are tested to 55°C. At extreme temperatures, the system will gracefully “derate” the power to protect the electronics while still providing a fast charge.
13. Is the screen readable in the sun? Yes, we use 1500-nit high-brightness industrial displays.
14. Does it support Plug & Charge? Yes, it is fully compliant with the ISO 15118 standard.
15. What is the maximum cable length? We offer cables up to 7 meters to accommodate large trucks and trailers.
16. How do I manage a hub of 10 chargers? Via OCPP and MIDA’s central hub management software, which provides a single dashboard for all units.
17. Can I integrate local solar power? Yes, the MIDA architecture allows for a DC-coupled solar and battery storage integration.
18. What is the warranty? Standard 2 years, with comprehensive 5 and 10-year service contracts available.
19. How often do I need to change the coolant? Typically every 3-5 years, depending on usage and climate.
20. Is it compatible with 400V cars? Yes, the system will deliver the maximum current the car can take (up to 500A), providing the fastest possible charge for 400V vehicles like the Tesla Model 3 or Ford F-150 Lightning.

18. Glossary of Terms

• AFIR: Alternative Fuels Infrastructure Regulation (EU).
• BESS: Battery Energy Storage System.
• Dielectric Coolant: A fluid that does not conduct electricity.
• IMD: Insulation Monitoring Device.
• MCS: Megawatt Charging System.
• NACS: North American Charging Standard.
• NEVI: National Electric Vehicle Infrastructure (US).
• SiC (Silicon Carbide): High-efficiency semiconductor material.
• TEN-T: Trans-European Transport Network.
• VIENNA Rectifier: A high-efficiency three-phase power factor correction topology.

19. Case Study: The “Sun-to-Station” Solar Hub in California

In 2025, a large-scale agricultural cooperative in California’s Central Valley sought to electrify its fleet of Class 8 heavy-duty trucks used for transporting produce. The challenge was the site’s rural location, where the local utility grid could not support the 2MW load required for a large-scale charging hub. The cooperative decided to build a “Solar-DC Microgrid,” and MIDA Power was chosen as the primary technology provider.

MIDA provided four 360kW DC Fast Charger Stations. These were integrated directly into a 1.5MW onsite solar array and a 2MWh Battery Energy Storage System (BESS). Because MIDA’s architecture is DC-coupled, the energy from the solar panels could be routed through a DC-DC converter directly to the 360kW chargers, bypassing the losses associated with AC conversion. During the peak California sun, the hub could provide 360kW of pure “green” power to multiple trucks simultaneously. The cooperative reported that by using MIDA’s dynamic load management, they were able to maximize the utilization of their solar energy, reducing their grid electricity costs by 85%. This project has become a blueprint for rural trucking hubs across North America.

20. Case Study: The “Last-Mile Trucking” Depot in Shanghai

A major logistics company in Shanghai transitioned its entire last-mile delivery fleet to electric 8-ton trucks. The depot, located in a high-density industrial zone, operated on a 24/7 schedule, with trucks returning in waves for rapid turnaround. The company needed a solution that could provide maximum speed to multiple vehicles in a very compact footprint.

MIDA Power installed six 360kW units in a split-system configuration. The power cabinets were housed in a mezzanine level to save floor space, while the dual-port dispensers were located in the loading bays. The logistics company utilized MIDA’s “Priority Routing” software. When an express delivery truck arrived, the system would prioritize its charge, giving it a full 360kW to ensure it was back on the road in under 20 minutes. The remaining power was then distributed to other trucks in the queue. This system allowed the depot to handle 30% more vehicle rotations per day compared to their previous 120kW chargers. The company’s operations director noted that the MIDA 360kW stations were the single most important factor in meeting their “Zero-Emission Delivery” guarantees in the competitive Shanghai market.

21. Case Study: The “High-Density Urban Hub” in Berlin

A real estate developer in Berlin converted an old multi-story parking garage into a “Public Power Hub” for the city’s burgeoning electric taxi and ride-share population. The challenge was the extreme variety of vehicles, ranging from older 400V Nissan Leafs to the latest 800V Porsche Taycans and Hyundai Ioniqs.

MIDA Power deployed eight 360kW stations. The wide output voltage range (150V to 1000V) allowed every vehicle to charge at its maximum capability. To handle the high volume of users, the developer integrated MIDA’s stations with a custom mobile app via OCPP 1.6J, allowing drivers to book charging slots and pay automatically. The hub also featured MIDA’s liquid-cooled cables, which were a necessity for the high utilization rate—some cables were in use for over 18 hours a day. The project has been a massive success, with a 98% utilization rate during peak hours. The developer is now planning to replicate this model in five other German cities using MIDA’s 360kW platform as the core technology.

22. Technical Deep Dive: Magnetic Component Design and EMI Suppression

Managing 360kW of power involves switching massive currents at high frequencies, which creates significant electromagnetic challenges. MIDA’s engineering team has addressed these through advanced component design.

• Nanocrystalline Transformer Cores: The main isolation transformers in the 360kW cabinet utilize nanocrystalline cores. These materials have a higher permeability and lower core loss compared to traditional silicon steel or ferrites. This allows the transformer to be smaller and lighter while maintaining an efficiency of over 99%. The reduced size also allows for better airflow and cooling within the power module.
• Litz Wire Windings: To combat the “Skin Effect” and “Proximity Effect” at high frequencies (where the current tends to flow on the outer surface of the conductor), MIDA uses Litz wire for all high-power inductors and transformers. Litz wire consists of hundreds of individually insulated fine strands, which ensures that the current is distributed evenly across the entire cross-section of the conductor, reducing resistive heating.
• Multi-Stage EMI Filtering: Switching 500A at 100kHz generates significant electromagnetic interference (EMI). MIDA 360kW units feature a multi-stage, balanced EMI filter at both the AC input and DC output. This includes high-attenuation common-mode chokes and X/Y-rated capacitors that ensure the charger exceeds the most stringent industrial EMC standards. This prevents the charger from interfering with local communication networks, GPS signals, or the vehicle’s onboard electronics.

23. Installation Guide Part 2: Civil Engineering and Permitting

The civil engineering requirements for a 360kW station are substantial and require professional oversight.

• Trenching and Conduit: Given the high current, the AC input cables are thick and heavy. Trenches must be dug to local code (typically 600mm to 1000mm deep) and lined with high-strength PVC or steel conduits.
• Substation Placement: If a new medium-voltage transformer is required, its placement must consider safety clearances, noise mitigation for nearby residents, and easy access for utility maintenance crews.
• Permitting and Grid Study: Before installation, a “Grid Impact Study” is usually required by the local utility. MIDA’s technical team provides the necessary harmonic and loadflow data to support your Grid Impact Study application, accelerating utility approval and reducing engineering cost. Our team prepares the harmonic analysis, power-factor data, and projected load profiles in the format that your local utility expects, so the study becomes a formality rather than a project risk. Where a new medium-voltage transformer is required, we also supply the equipment specification and coordination studies needed for the utility’s protection review.

Beyond the grid connection, the civil scope includes several elements that are easy to overlook but expensive to fix later:

• Grounding and Bonding: The station requires a low-impedance grounding electrode system tied to the transformer neutral and the dispenser cabinets. MIDA provides the grounding calculation and the required conductor sizing for the full station loop.
• Dispenser Foundations: Liquid-cooled dispensers should be mounted on their own reinforced concrete pads with conduit stubs pre-positioned for the coolant lines and DC cables. Never share a dispenser foundation with a vehicle travel lane.
• Canopy and Shade Structures: If a canopy is planned, verify its drainage and structural certification before pouring foundations; the charging equipment must not be in the drip line of roof edges.
• Final Inspection and Commissioning: Before energizing, the local authority and the utility will inspect the installation against the approved drawings. MIDA’s commissioning engineer attends this inspection with the full test dossier — insulation tests, ground continuity, phase rotation, and functional tests of the emergency stop system.

Safety compliance is embedded in the same engineering package. The station’s liquid-cooled cable system reduces surface temperatures on the connector, and the site plan must maintain the required clearances around the cabinets for emergency access and ventilation. MIDA also coordinates the fire and electrical inspections with your local authority, providing the documentation for the station’s UL/ETL listings, the grounding calculations, and the manufacturer’s installation instructions that inspectors typically request. Many operators underestimate how much of a high-power project’s schedule lives in the approval chain; MIDA’s project engineers manage that chain with you, so civil works and paperwork finish at the same time.

Getting the civil engineering right is what separates a 360kW hub that operates for decades from one that spends its first year in rework. MIDA’s project team has delivered high-power sites across North America, Europe, and Asia, and we bring that accumulated experience to your drawings, your permitting, and your inspection day.

24. Conclusion: Building the High-Power Hub Right

A 360kW NACS supercharger hub is a significant civil and electrical undertaking — and precisely because it is, it must be engineered to the same standard as the electronics inside it. From trench depth and conduit sizing to transformer placement and utility studies, every decision compounds into the station’s long-term reliability. MIDA supports the entire chain: harmonic and load-flow data for your grid study, grounding calculations, dispenser foundation layouts, and an on-site commissioning engineer who walks the final inspection with you.

Key Takeaways

• Grid Impact Studies move faster with MIDA’s prepared harmonic and load-flow documentation.
• Grounding, dispenser foundations, and canopy drainage must be designed together, not as afterthoughts.
• Liquid-cooled dispensers require dedicated pads with conduit stubs for coolant and DC lines.
• MIDA’s commissioning engineer supports the final inspection with a complete test dossier.
• Professional civil engineering turns a high-power hub into a 20-year asset.

Contact our global project team at sales@midapower.com for a site-specific technical proposal, or visit www.midapower.com to explore our full range of high-power EVSE solutions. Let’s power the next billion miles together.