Experts warn of risks in EV charging systems for residential complexes in Finland
The implementation of electric vehicle (EV) charging systems in residential complexes poses significant risks. With many service providers available, some may be linked to either device manufacturers or operators, or both. As of now, residential complexes with five or more parking spaces are legally required to prepare for EV charging on their premises. This readiness must be established before any renovation projects commence that require a building permit.
Experts have identified three critical aspects that residential complexes should consider when constructing charging systems.
1. Risks Associated with Cloud Services
In many charging devices, the “smart” capabilities may not reside in the device itself but in a cloud service provided by the manufacturer, potentially creating dependency. Vesa Linja-aho, a specialist from Metropolia University, warns that the greatest pitfalls of charging systems are linked to these cloud services. He notes that even reliable companies might suddenly cease offering these services or discontinue device manufacturing. In such cases, complexes could find themselves having invested substantial sums without functional charging devices. Connectivity issues can also arise, leading to total charging failures.
2. Compatibility with Various Operators
Numerous smart EV chargers support the Open Charge Point Protocol (OCPP), allowing for integration with various operational back-end systems. It is crucial that these systems perform multiple functions, including load management and event tracking. Linja-aho emphasizes that local load management is safer than relying on cloud services, advocating for configurations where intelligence is integrated within devices rather than dependent on external cloud infrastructures.
3. Local Systems Demand Ongoing Management
Simplified local charging systems do not require external connectivity, allowing for operational autonomy. However, this requires a dedicated individual for meter readings and billing. Outsourcing billing to a service operator can be beneficial in larger complexes, though maintaining local systems can be labor-intensive.
In summary, careful consideration of technology and operational frameworks can substantially enhance the reliability and efficiency of EV charging systems in residential environments.