EV Charging Connectivity
Keep every charger connected, compliant and under your control. 100% network visibility, PCI DSS compliance, and remote management across your entire estate.
Regulatory requirement: UK legislation mandates that EV charge points maintain a live network connection, report real-time availability status, and protect payment card data to PCI DSS 4.0 standards. SIMSY is built to meet all three.
Connectivity challenges at scale
Managing connectivity across a dispersed EV charging estate brings a distinct set of challenges. The regulatory stakes are getting higher every year.
Connectivity Blind Spots
Remote, roadside, and car park chargers lose connection with no warning. For operators managing compliance with UK legislation that mandates always-on connectivity and real-time availability reporting, a blind spot is not just an operational inconvenience — it is a regulatory failure.
Payment Data Compliance Risk
Card transaction data sharing a network with device management creates serious PCI DSS 4.0 exposure. Network isolation is not optional, it is mandated, and it became enforceable in March 2025. There is a cleaner way to solve it at the SIM level.
Costly Engineer Callouts
Without remote access to the full device stack, every fault requires dispatching an engineer regardless of whether the issue is hardware, software or connectivity. A large estate with even a modest callout rate generates significant cost that remote access can dramatically reduce.
Single Network Dependency
One carrier means gaps, especially at rural, motorway, and car park locations where network coverage varies significantly. When your estate grows into less urban areas, single-carrier reliability becomes a live operational risk.
Built for regulatory compliance
SIMSY addresses the key regulatory and compliance requirements facing EV charge point operators.
PCI DSS 4.0: Payment Card Data Isolation
Mandatory since March 2025. Requires complete network segmentation between cardholder data environments and other traffic. SIMSY's Multi-APN delivers this on a single SIM, with no additional hardware required at any site.
UK EV Legislation: Always-On Connectivity
UK regulations require charge points to maintain a live network connection, report availability status in real-time, and support remote monitoring. SIMSY's multi-network SIM ensures uptime anywhere in the UK, across all four major carriers.
NIS2: Network Security Requirements
Critical infrastructure operators face NIS2 network security obligations. SIMSY's private network architecture, where traffic never touches the public internet, directly addresses these requirements.
Cyber Essentials Plus: Device and Network Hygiene
Cyber Essentials Plus requirements for IoT deployments include network segmentation and device access controls. Both are standard on SIMSY from day one.
Purpose-built for charge point operators
Every feature designed to keep your chargers connected, compliant, and manageable at scale.
Multi-Network SIM
Automatically connects to the strongest available signal at each location — EE, Vodafone, O2 or Three. Particularly important for operators with rural, roadside, and motorway sites where a single carrier may have patchy coverage.
PCI DSS Multi-APN
Run completely isolated logical networks on a single SIM. Card payment traffic and device management traffic stay fully separate, meeting PCI DSS 4.0 segmentation requirements without additional hardware at each site.
Proactive Offline Alerts
The moment a charger loses connectivity, you know about it. Power outage, network fault, hardware failure — the alert reaches your team before any customer has a chance to report it.
Full Remote Access
Diagnose faults, push software updates, and troubleshoot the full device stack remotely. Most operational faults can be resolved from your desk without dispatching anyone.
Real-Time Visibility
A live dashboard showing connectivity status, data usage, and uptime across every site in your estate. Per-charger, per-location, per-client. The data you need to meet reporting requirements under UK EV legislation.
Instant SIM Provisioning
New SIMs go live in minutes. New charger installations are never delayed by a slow activation process and new sites can be connected the same day they are physically installed.
Connected in three steps
From order to fully managed, compliant connectivity across your charging estate.
Order, configure and activate
SIMs arrive pre-configured for your network requirements, including Multi-APN if you need payment and management traffic isolated. Activation takes minutes through the SIMSY dashboard or API. If you are migrating we work through the transition with you, site by site.
Set up your estate structure and alerts
Organise your chargers by site, location type, or client. Configure real-time offline alerts so your operations team is notified immediately when a charger loses connectivity. Set data thresholds and usage visibility per site.
Monitor and resolve in real-time
Full visibility: connectivity status, data usage, uptime history, and alert logs across every charger. When something goes wrong your team can log in remotely to diagnose and resolve most faults without visiting site. PCI DSS compliance handled at the SIM level from day one.
What changes when you move to SIMSY
A direct comparison of what EV charge point operators experience before and after switching.
Single-carrier SIM with coverage gaps at rural locations
Multi-network SIM auto-selects EE, Vodafone, O2 or Three
Payment and management traffic on the same network
Multi-APN isolates payment and management traffic. PCI DSS 4.0 compliant.
No offline alerts. Faults reported by customers.
Instant offline alerts. Your team knows the moment any charger drops.
No remote access. Every fault requires an engineer visit.
Full remote access to charger unit and connectivity layer.
SIM provisioning takes days
SIMs activate in minutes. New sites go live the same day.
No real-time charger status visibility
Live dashboard showing uptime, status and usage per charger
Software updates require a physical visit
Software updates pushed remotely without visiting site
Real-World Deployment: UK Charge Point Operator
A UK CPO managing hundreds of sites across the country. Names withheld, outcomes are real.
The Situation
A UK charge point operator with sites across urban car parks, retail destinations, and motorway services was managing a rapidly growing estate. Single-network SIMs were creating black spots. When a charger went offline there was no proactive alert. Every unresolved fault required an engineer visit. Their existing connectivity setup had card payment traffic and device management traffic running on the same network — a direct conflict with PCI DSS 4.0 requirements.
The Deployment
The operator migrated to SIMSY and gained a multi-network SIM that automatically selects the strongest available signal at each location. Using Multi-APN configuration, card payment traffic was moved to a fully isolated logical network. Proactive offline alerts meant the operations team was notified the moment any charger lost connectivity. SIMSY's remote access tools allowed them to diagnose and resolve the majority of faults without dispatching an engineer.
The Outcome
Engineer callouts reduced significantly. Remote resolution became the norm. PCI DSS 4.0 network isolation requirements are met on every site through Multi-APN with no remediation hardware required. With automatic failover across four UK networks, uptime improved across the estate. Customers find chargers that work.
“We know about a charger going offline before any customer reports it. We fix most issues without sending anyone out.”
UK EV Charge Point Operator, SIMSY Deployment
Measurable results
UK mobile networks on a single SIM, automatic failover at every location
Remote access and proactive alerts dramatically reduce engineer dispatch
Payment isolation achieved at the SIM level, no additional site hardware
SIM activation time. New charger sites live the same day as installation.
Wherever your chargers are installed
Our multi-network SIM automatically selects the strongest signal at every location: urban car parks, motorway services, retail destinations, or rural sites. One SIM manages your entire UK estate.
Common questions
Everything you need to know about SIMSY for EV charging.
Yes. Multi-APN creates completely isolated logical networks at the SIM level, meaning card payment traffic and device management traffic never share the same network path. This satisfies the PCI DSS 4.0 requirement for cardholder data environment segmentation without any changes to hardware or software at the charger.
The SIM automatically registers on whichever of the four UK networks has the strongest signal at that physical location. If one carrier is weak at a particular motorway service area, the SIM moves to another without any intervention. From the charger's perspective it stays connected continuously.
Most operators migrate in batches, prioritising new installations first and swapping out existing SIMs over a planned schedule. We work with you on the migration plan so there are no connectivity gaps. Most operators are fully transitioned within a few weeks.
Yes. Full API access is included as standard. You can pull real-time connectivity status, offline alerts, and usage data directly into whatever platform your operations team is already using.
Yes. SIMSY works with any device that uses a SIM for connectivity. Whether you are managing rapid DC chargers on motorways, AC destination chargers in retail car parks, or residential installations, the platform handles all device types in the same dashboard.
SIMSY is priced per SIM per month and is competitive with single-network alternatives when you factor in the multi-network coverage, remote access, compliance capability, and management platform included as standard. Volume pricing is available for larger estates.
Ready to talk?
We are the founders. Drop us a direct email and we will arrange a call. No booking forms, no automated sequences. A straight conversation about what you are running and how SIMSY can help.