Author: cgiuffrida

How can over 100 charging points, three charging infrastructure vendors, multiple bus types, and an existing energy system be coordinated efficiently in a major city like Barcelona? The answer is a tailored, data-driven charging strategy implemented using MOBILEcharge by CarMedialab.

In a large-scale project with Transports Metropolitans de Barcelona (TMB), MOBILEcharge was deployed as the central charge management system across three bus depots – Triángulo, Zona Franca, and Horta. The system integrated more than 100 charging points from several providers, including Ekoenergetyka, Power Electronics, and Jema, as well as buses from BYD, Solaris, and Irizar.

Sharing Energy, Not Wasting It: A Unique Use Case

One of the project’s most innovative aspects lies in TMB’s unique energy setup. The same electricity that powers the Barcelona Metro during the day becomes available at night, once Metro operations shut down around midnight. MOBILEcharge was configured to take full advantage of this opportunity by shifting as many charging operations as possible into the overnight hours. 

Smart Charge Management for Maximum Efficiency

The core challenge was to schedule charging times so that all vehicles are fully charged and preconditioned by early morning, while avoiding peak loads and respecting the metro grid’s power constraints.

MOBILEcharge managed the entire load curve to:

• relieve the power grid (peak shaving),
• make optimal use of available nighttime capacity,
• comply with transformer capacity limits,
• and ensure operational readiness across all bus lines.

A Showcase of Connected Urban Mobility

This project with TMB demonstrates how intelligent charge management can significantly improve energy efficiency, reduce operational costs, and support the decarbonization of public transport – even under complex, real-world conditions.

“With MOBILEcharge, we were able to intelligently manage the charging processes, make targeted use of the available metro power, and ensure reliable, on-time bus operation.”

Ari Rizian, Project Manager at CarMedialab

Project Snapshot

• over 100 charging points
• active at three depots in Barcelona
• three charging infrastructure vendors: Ekoenergetyka, Power Electronics, and Jema
• three bus manufacturers: BYD, Solaris,and Irizar
• optimized night charging using metro shutdown power
• peak shaving and smart load distribution with MOBILEcharge

Contact

For questions or more information about the project or how to integrate MOBILEcharge into your operations, feel free to contact us at: info@carmedialab.com. 

The RATP Group is one of Europe’s largest providers of urban mobility services. Headquartered in Paris, the group transports more than 16 million passengers every day and operates in more than a dozen countries worldwide. As part of the Bus 2025 program, RATP is playing a key role in the electrification of public transport in the Paris region, supported by strong technology partners such as CarMedialab.

Bringing standards to life – together

At the heart of the collaboration is the implementation of the VDV 261 interface. It enables seamless communication between electric buses, charging infrastructure and the charge management system – essential for functions such as automated preconditioning of the battery and passenger cabin before departure. This not only improves comfort and range, but also increases energy efficiency and battery life. However, real-world implementation is rarely straightforward: different manufacturers, complex protocols and a lack of transparency in error reporting often pose major challenges.

A tool that makes a difference

To simplify this complexity, RATP and CarMedialab jointly developed a VDV 261 test tool. It simulates the full communication process between vehicle and charging infrastructure without the need for a physical vehicle or charging station.

Key benefits at a glance:

• Automated testing under realistic conditions
• Fast troubleshooting with detailed protocol analysis
• Significantly more efficient commissioning
• User-friendly interface for easy operation

A practical solution for manufacturers, workshops and transport operators.

A strong step toward interoperability

The joint development of this tool is an important milestone in making interoperability in electric bus operations a reality. Thanks to a robust technical framework, transport operators like RATP can now integrate new systems more quickly and reliably automate their charging processes.

“The RATP Group has made innovation a key part of its DNA and a powerful driver of its development. To achieve this, it can rely on its own innovation capabilities and an open ecosystem in which partner companies such as CarMedialab play a key role. The tool is powerful, easy to use, and ensures interoperability, which is the cornerstone of electric mobility. I am proud of the results of this collaboration!”

Jérôme Sahuc, IT Manager RATP Bus 2025 Program

We sincerely thank the RATP Group for the excellent collaboration and look forward to continuing to shape the future of zero-emission public transport together.

For the electrification of its bus fleet in Utrecht, Keolis Netherlands relies on CarMedialab’s intelligent charge management system MOBILEcharge. In a large-scale project, up to 267 charging points will be integrated into the system to ensure smooth and efficient operation of the electric Yutong buses.

A Phased Approach to Zero Emission

The first phase of the project commenced in November 2024, and plans are underway to introduce 86 new electric buses to supplement the seven currently in service. The primary objective is to meet the targets set in the new concession with the PTA by replacing the diesel fleet with electric buses in several reliable phases. This approach not only supports the national goal of reducing emissions but also addresses current challenges such as grid capacity constraints.

Seamless Integration

A key element of the charging infrastructure is the seamless integration of interfaces such as VDV 463 and VDV 261, which enable efficient control of the charging process. In addition, the INIT Group’s ITCS system is integrated into the overall project to ensure optimal networking between charge management and depot control.

Smart Partnership for Efficient E-Mobility

“With MOBILEcharge, we ensure that Keolis can operate its e-bus fleet in Utrecht efficiently and sustainably. Intelligent charge management is the key to economical and reliable e-mobility in public transport.”

Elvia Fortanelli, Project Manager at CarMedialab.

Thijs Struijlaart-Beusen, Transition Manager Zero Emissions of Keolis Netherlands, emphasizes:

“Our objective for this project is to have a reliable transition to zero emission within the goals of the PTA (provincie of Utrecht). The final phase is planned for 2028. With CML and INIT as our partners we will make sure our bus operators and regional control centre will have reliable and familiar systems for every charger and bus in the Netherlands.”

With this partnership, Utrecht will become another showcase for sustainable mobility in Europe – and CarMedialab and INIT with its innovative technologies will make a decisive contribution.

About CarMedialab

CarMedialab (CML) is part of the INIT Group, a global leader in telematics solutions for public transport. CML is a leading provider of charge management solutions for electric bus fleets. With years of experience and a strong focus on innovation, INIT and CML offer customized solutions for the challenges of modern mobility. 

About Keolis Netherlands

Keolis Netherlands is a mobility provider dedicated to delivering reliable and sustainable public transport services. As part of the international Keolis Group, the company focuses on innovation, reliable passenger experience, and environmentally friendly mobility solutions to shape the future of public transportation in the Netherlands.

E-buses in Völklingen – a look behind the scenes

The VVB Völklinger Verkehrsbetriebe GmbH were the first in Saarland to use electric buses. But what was behind this change? What were the challenges? And what role does an intelligent charge management play?

In our exclusive video interview, Thorsten Gundacker, Managing Director and Operations Manager of the VBB, provides exciting insights into the transition to e-mobility. He talks about the reasons for the switch, the public acceptance of e-buses, and the ambitious plans for a fully electric fleet.

Watch the full interview here:

IT solutions for public transport

Want to learn more about intelligent charge management? Take a look at our IT solutions for public transport and discover your options for an efficient and cost-effective charging infrastructure!

CarMedialab is pleased to announce that it has won a major contract with INIT for Transports Publics Fribourgeois (TPF) in Fribourg, Switzerland. As part of this comprehensive project, CML will provide vehicle health monitoring and a driver assistance system. The proven systems of the parent company INIT are also part of the package, providing dispatching and operational control for the TPF fleet.

Vehicle Health Monitoring

The MOBILEvhm system developed by CML monitors all relevant vehicle data in real time – regardless of whether it is an electric bus or a conventional vehicle. By continuously analyzing the operating conditions, potential problems are detected early, allowing proactive maintenance planning and improving the safety and efficiency of the entire fleet.

Driver Assistance System

The MOBILEefficiency driver assistance system provides the data needed to make precise, real-time recommendations for energy-saving and safe driving. The system collects relevant vehicle data to provide information on optimal acceleration and braking. These data-based recommendations to the driver help reduce energy consumption while increasing comfort and safety for all passengers.

Comprehensive Public Transport Solution

Within the project, CarMedialab’s innovative systems make a decisive contribution to the efficient operation of TPF’s fleet. At the same time, INIT complements the concept with the proven systems Intermodal Transport Control System MOBILE-ITCS nextGen, which predicts arrival and departure times in real time, and RESPONSEassist, which massively relieves the control center personnel in the management of disruptions. This combination creates a tailor-made solution that decisively supports the transition to sustainable and efficient mobility in Swiss public transport.

“We are very pleased to have convinced TPF, another customer in the highly innovative Swiss public transport market known worldwide for its service quality, of the efficiency of our solutions,”

said Klaus Janke, Managing Director and Head of Sales at INIT.

“With the new system from INIT Group, not only will all operational control tasks be managed more reliably and conveniently, but the transition to zero-emission mobility can also be successfully managed with our solution.”

During our visit to Darmstadt, which was part of the collaboration between CarMedialab and HEAG mobilo, we had the opportunity not only to learn about the technological side of e-mobility, but also to talk to the people behind it. A particular highlight was our conversation with bus driver Zeyrek M., who shared his daily experiences with the modern e-buses.

Experience of an e-bus driver

With the quiet hum of the e-buses in the background at the depot, Zeyrek M. was happy to share not only his driving skills, but also his thoughts and preferences about the new technology with us.

The benefits of e-mobility from a driver’s perspective

Zeyrek M. described with palpable enthusiasm why he clearly prefers driving an e-bus to driving a diesel bus. He told us:

“I much prefer driving an e-bus to driving a diesel bus!”

This preference is easy to explain when you consider the many advantages of e-buses. The smoother and quieter ride means greater comfort for both driver and passengers. In addition, the vibration and noise associated with diesel buses are eliminated, making the driving experience much more pleasant. The absence of exhaust fumes not only helps to protect the environment, but also improves the air quality in the driver’s area and benefits the health of drivers and passengers.

“Travelling in the e-bus with Zeyrek M. was very pleasant. Instead of a noisy engine, there is silence, and at traffic lights the bus starts up smoothly. This makes it easy to choose public transport over the car,” said Markus P. after a short ride through Darmstadt.

Mobility transition: people at the centre

The encounter with the bus driver provides an authentic insight into the human dimension of the mobility transition. It shows that behind every technological innovation there are people who bring it to life. Drivers like him are not only at the forefront of the transition to more sustainable mobility, they are also ambassadors of a new era. By sharing his experiences and preferences, he gives us valuable insights into the everyday reality of e-mobility and its positive impact. We thank Zeyrek M. for the friendly exchange.

Read more about our visit to HEAG mobilio: Insights into e-mobility in Darmstadt

CarMedialab’s charge management solution MOBILEcharge has been supporting transport companies for years in the efficient organisation of the charging infrastructure for electric buses. With the new Depot Map View feature, you now have a tool that gives you a precise overview of the operations within your charge management software.

Realistic presentation of the charging stations

The Depot Map View is a visual representation of your entire depot. The web application allows you to upload a schematic background image of your depot – such as a satellite image, a technical drawing or a site plan. In this modifiable, graphical view, you can arrange your charging stations exactly as they are located in real life.

The intuitive drag-and-drop function makes it easy to move the individual stations so that the view corresponds exactly to your actual depot structure. This means that you can not only see all charging points at a glance, but also track their exact location directly in the software.

The advantages of the Depot Map View

In addition to the clarity, which is already a major advantage, the Depot Map View offers numerous other practical functions for operation.

Save time and plan your charging more efficiently: the depot map view shows you at a glance which charging stations are available, eliminating the time-consuming search for free charging stations. This not only saves valuable time, but also optimises route planning to the nearest charging stations. Especially at peak times, when quick decisions have to be made, the depot map view helps to find the right charging stations quickly and to park the buses efficiently at the respective charging stations.

Faster transfer of information to the driver: The immediate visual availability of charging information means that drivers can be quickly informed of the location of the next available charging point, or whether the charge level of a particular bus is sufficient. This improves communication and contributes to smooth operation.

Improved overview of buses and charging status: In addition to the occupancy of the charging stations, the Depot Map View also shows which bus is at which station and the charging status. This provides a clear overview and makes it easier to manage the charging process, especially when different charging processes such as slow or fast charging have to be coordinated.

Summary: Faster deployment through clarity

The new Depot Map View function in MOBILEcharge provides a clearly structured and intuitive display of the charging infrastructure in the depot. The flexible arrangement of the charging stations and the quick overview of the processes not only make the management of the charging processes easier, but also more efficient.

Transport companies benefit not only from a better overview, but also from faster decision-making processes and more efficient use of their charging infrastructure. In addition, the Depot Map View saves time by making it easier to find free charging stations and by quickly providing charging status information, which speeds up the entire charging process.

Want to learn more?

Would you like to see the new feature in a live demo or find out more about other functions in MOBILEcharge? Please do not hesitate to contact us.

The future of sustainability is at the center of many new and innovative developments in public transport. With zero emissions and environmental benefits, it is no surprise that electric buses are becoming increasingly popular. However, to optimise the operation of these vehicles, especially in large fleets, intelligent charge management is required. This is where the Open Charge Point Protocol (OCPP) comes in.

What is OCPP?

The Open Charge Point Protocol (OCPP) is an open communication standard that enables interoperability between charging stations and charging station management systems. Originally developed by the Open Charge Alliance (OCA), OCPP has become established as a globally accepted standard. It allows for seamless integration of different charging stations and charging management systems, even from different manufacturers and providers , thus ensuring not only flexibility but also security for the benefit of the transport companies.

Challenges of electric bus integration

There are a number of challenges to be aware of when introducing electric buses. The four main ones are:

1. High energy demand: Electric buses require large amounts of energy, which must be provided efficiently and in a timely manner.
   
2. Fleet management: Managing a fleet of electric buses requires careful planning and monitoring of charging times to avoid disruption to operations.
   
3. Grid load: Charging multiple buses at the same time can place a significant load on the grid, requiring intelligent load distribution.
   
4. Interoperability: Various components of the charging infrastructure, as well as the different bus models, have to be compatible with each other.

OCPP in the charge management

The Open Charge Point Protocol offers a solution to these challenges by creating a standardized communication interface between the charging stations and the central charge management system. Here are the advantages of OCPP in the context of charge management for electric buses:

1. Interoperability: OCPP enables the connection of different charging points and back-end systems, ensuring flexible and vendor-independent charging management.
   
2. Load management: Through constant communication and transmission of real-time information, charging processes can be dynamically adjusted to avoid peak loads and ensure grid stability.
   
3. Monitoring and diagnostics: OCPP allows continuous monitoring of the charging process and diagnosis of problems, facilitating maintenance and reducing downtime.
   
4. Scalability: With OCPP, charging infrastructures can be easily expanded to keep pace with the growth of the electric bus fleet.

MOBILEcharge and OCPP

MOBILEcharge is a charge management system developed by CarMedialab that automates and optimizes the charging process for electric buses with minimal user intervention. This solution is fully compatible with OCPP and supports OCPP versions 1.6 and 2.0.1.

The solution specifically includes:

• Seamless integration and interoperability with various charging stations through the OCPP standard.
  
• Intelligent charge management to avoid network congestion and optimise charging times.
  
• A comprehensive monitoring and diagnostics solution to ensure the smooth operation of the charging infrastructure.

Conclusion

As a well-established communication standard, the Open Charge Point Protocol provides the basis for the interoperability and flexibility needed to ensure an efficient and future-proof charging infrastructure. Thanks to OCPP, different charging stations and backend systems can be seamlessly integrated and coordinated, which not only increases operational efficiency but also supports grid stability. With CarMedialab’s solutions, which are fully OCPP compatible, transport companies can confidently face the challenges of e-mobility.

CarMedialab not only implements OCPP in its charge management solution MOBILEcharge, but also actively contributes to the development of this standard. As a member of the Open Charge Alliance (OCA), CarMedialab plays a key role in the specification and establishment of OCPP.

In partnership with New York Power Authority (NYPA) and Guth DeConzo Construction Management, CarMedialab will supply a cloud-based charge management solution to New York’s Metropolitan Transportation Authority (MTA). This smart charging project will support MTA’s electrification plans in one of the world’s largest cities.

The project aims to transform four depots across New York with cutting-edge charge management technology, paving the way for the city’s electric future. In the initial phase, approximately 255 charging points will be installed. As the project progresses, an additional 500 charging points will be added, supporting the plan to expand the charging infrastructure for a fleet of 5,800 electric buses by 2040. This transition, according to the MTA, is set to cut greenhouse gas emissions by an estimated 500,000 metric tons annually, marking a significant step towards a cleaner New York.

“We are excited to partner with INIT and CarMedialab to bring advanced electric bus charge management to such a pivotal project in New York City”, 

said Stuart Culver, Director of Construction Management at Guth DeConzo.

A key component of the project is the installation of local controllers in each of the four depots. These local controllers ensure that the charging process continues reliably even without an internet connection. This allows intelligent charging of the electric buses in the event of server failures or network issues.

Another key element of the project is the integration of various standard interfaces to ensure smooth communication and interoperability between different systems. This includes connecting the Yard Management System (YMS) and the CAD/AVL system for seamless coordination and monitoring. The project also supports automatic preconditioning of electric buses, ensuring they are prepared for operation. Additionally, the MODBUS interface will be implemented for effective substation monitoring, enabling precise control of energy flows. This comprehensive integration ensures efficient management of the charging infrastructure, contributing to the reliable operation of the electric bus fleet.

“Our charge management system, MOBILEcharge, not only drives the expansion of sustainable transportation infrastructure but also enhances the efficiency and reliability of MTA’s daily operations”, 

said Maximilian Haag, Head of Sales Public Transport at CarMedialab.