The Czech Metrology Institute (CMI) now actively uses comemso ‘s Easy Chester Calimera mobile calibrator solution for charging infrastructure. CMI integrated this system into their service vehicle and started field operations for AC and DC charging stations . As the Czech Republic’s national metrology authority, CMI ensures measurement accuracy, compliance, and trust in calibration applications.
This deployment enables CMI to verify charging stations directly at locations where energy actually flows. The mobile approach supports precise, traceable energy verification at the charging point itself. Accurate measurements ensure correct billing and build public trust in charging infrastructure across the country.
The investment strengthens CMI’s mobile calibration capabilities for both AC and DC stations in the field. CMI plays a central role in maintaining metrological standards throughout the Czech Republic’s expanding EV charging network.
Project Timeline From Demonstration to Full Deployment
The partnership began in December 2025 when comemso visited CMI in Prague with their demo vehicle. CMI experts and international partners experienced the Easy Chester Calimera operating live during this visit. The demonstration showcased real-world calibration performance under actual field conditions.
CMI then provided their own service vehicle for professional integration by comemso engineers. The fully equipped vehicle was handed over at comemso’s facility in Ostfildern, Germany in February 2026. Joint system training occurred during handover before CMI transported the vehicle back to Prague immediately on the same day.
comemso CCO Anita Athanasas emphasized that practical mobile solutions drive charging infrastructure development forward. She highlighted CMI’s active deployment as proof the technology delivers reliable metrology for e-mobility applications. This quick transition from demo to operational use demonstrates strong project execution.
Technical Journey and Integration Process
The project required close cooperation between CMI metrologists and comemso technical teams. Integration involved mounting the Calimera system securely inside the service vehicle while maintaining accessibility. Professional installation ensured the system performs reliably during mobile operations on Czech roads.
Technical Specifications and Charging Standard Support Details
The Easy Chester Calimera delivers precise, traceable measurements under real-world field conditions for charging infrastructure. The system complies with ISO/IEC 17025 calibration testing processes for legal metrology applications. This accreditation ensures measurements meet international standards for accuracy and traceability.
| Feature | Specification |
| Voltage/Current Range | Wide range for modern high-power charging applications |
| Measurement Precision | High-precision energy measurement for AC and DC systems |
| Workflow Type | Automated workflows for efficient testing processes |
| Charging Standards | CCS1, CCS2, CHAdeMO, NACS, AC Type 1/2 support |
The system supports modern high-power charging applications with its broad voltage and current capabilities. High-precision energy measurement works accurately for both AC and DC charging systems used nationwide. Automated workflows reduce manual intervention and improve testing consistency across multiple charging stations.
Operators and testing organizations increasingly require accurate energy measurement documentation for regulatory compliance. End users need confidence that billing matches actual energy received from charging stations. Only precise measurements build trust between consumers and charging infrastructure providers.
Market Impact of Mobile Calibration Adoption
CMI’s active deployment signals growing demand for reliable mobile field calibration solutions in Europe. Public and commercial charging network expansion makes measurement accuracy more critical than ever before. Regulatory requirements for charging infrastructure continue tightening across the European Union.
National metrology institutes now actively shape e-mobility infrastructure quality and transparency standards. This project demonstrates how official institutions drive standards adoption in the rapidly growing charging sector. Other countries may follow CMI’s example when building their own calibration capabilities.
Benefits for Charging Infrastructure Stakeholders
- Accurate billing ensures customers pay only for energy actually received from charging stations
- Regulatory compliance meets legal metrology requirements for public charging infrastructure
- Traceable measurements provide documented proof of calibration accuracy for authorities
- Field mobility enables on-site testing without transporting equipment to laboratories
- High-power support handles modern fast-charging applications up to current standards
The mobile approach saves significant time compared to traditional laboratory-based calibration methods. Operators can keep charging stations running while calibration occurs on-site during routine maintenance visits. This efficiency supports faster deployment of new charging infrastructure across the Czech Republic.
Company Background and Quality Certifications
comemso develops innovative test and calibration solutions specifically for e-mobility applications worldwide. The company serves automotive manufacturers, charging operators, testing organizations, utilities, and metrology institutes. Their solutions cover development, testing, validation, and calibration of charging and communication systems.
comemso electronics GmbH operates from Ostfildern, Germany with ISO 9001 quality management certification. They also hold ISO 14001 environmental management certification for their operations. Their subsidiary comemso eMobility Services GmbH holds ISO 17025 accreditation for calibration services.
The company focuses on making charging infrastructure more reliable, secure, and transparent for all stakeholders. Their practical technologies address real-world challenges faced by charging network operators and metrology institutes. comemso continues developing solutions that support the global transition to electric mobility.
Strategic Importance for E-Mobility Sector
This partnership represents a strategic advancement in charging infrastructure quality assurance capabilities. National metrology institutes play crucial roles in building consumer confidence in electric vehicle adoption. Reliable measurement technology directly supports government e-mobility targets and climate goals.
Sources: comemso
