Infrastructure-as-a-Service (IaaS) is a cloud computing model where a provider delivers fundamental IT resources—such as virtual servers, storage, and networking—as an on-demand service. Instead of buying and managing physical hardware, organizations rent scalable infrastructure and pay based on usage.
What Is Infrastructure-as-a-Service (IaaS)?
IaaS provides the building blocks needed to run applications and platforms in the cloud:
– Compute: virtual machines or scalable compute instances
– Storage: block, object, and backup storage for data and logs
– Networking: virtual networks, firewalls, load balancers, IP management
– Security controls: identity access, encryption options, network segmentation tools
The customer manages operating systems, applications, and configuration, while the provider manages the underlying physical infrastructure.
Why IaaS Matters for EV Charging Networks
EV charging operations depend on digital systems that must scale reliably:
– CPMS services handling charger monitoring, control, and reporting
– OCPP gateways and message processing at high device counts
– Payments, tariffs, roaming integrations, and session data pipelines
– Data storage for charge detail records (CDRs), logs, and analytics
Using IaaS helps operators scale infrastructure as the network grows without long procurement cycles for servers and data centers.
How IaaS Is Used in EV Charging Backends
Common IaaS-based patterns include:
– Hosting CPMS application servers behind load balancers
– Running high-availability clusters across multiple zones for resilience
– Storing telemetry, diagnostics, and CDR data in scalable storage services
– Deploying secure network segmentation for charger communications
– Automating infrastructure setup for consistent environments across regions
This supports rapid rollouts, predictable performance, and improved operational stability.
IaaS vs PaaS vs SaaS
Cloud service models differ by how much the provider manages:
– IaaS: provider manages hardware; you manage OS, runtime, and apps
– PaaS (Platform-as-a-Service): provider also manages runtime/platform components; you deploy apps
– SaaS (Software-as-a-Service): provider delivers a complete application you use (e.g., a hosted CPMS product)
In charging operations, a CPO might use a SaaS CPMS, while the CPMS vendor may run its platform on IaaS.
Benefits and Limitations
Key benefits:
– Rapid scalability as charger count and data volume increase
– Lower upfront CAPEX compared to owning servers
– Faster deployment across regions and markets
– Easier resilience design with multi-zone architectures
– Infrastructure automation for consistent environments and updates
Limitations to consider:
– Requires strong cloud operations practices (security, monitoring, cost control)
– Misconfiguration can create security and availability risks
– Data residency and compliance requirements may constrain region choices
– Vendor lock-in risk depending on services and architecture decisions
Related Glossary Terms
Cloud Computing
Platform-as-a-Service (PaaS)
Software-as-a-Service (SaaS)
CPMS
OCPP
High-Availability Clusters
Monitoring and Alerting
Disaster Recovery (DR)
Encrypted Communications
Incident Response Plan