How to choose a CPMS A buyer's guide to charge point management systems
The best Charge Point Management System (CPMS) for your network should be assessed on more than price or the appearance of its dashboard. The most important criteria are open standards and OCPP support, charger compatibility, tariff and payment flexibility, roaming, reliability, support, reporting, security, scalability and your ability to leave without losing control of your data or hardware.
- Dual OCPP 1.6 & 2.0.1 certified
- ISO 27001 certified
- Works with existing OCPP compliant hardware
- 100% UK-based support
CPMS, CSMS or back office: what is the difference?
CPMS, CSMS and EV charging back office are often used to describe the software that manages charge points, their users, transactions and data. CPMS, or Charge Point Management System, is the most common term in the UK. CSMS, or Charging Station Management System, is also widely used, particularly in technical documentation and OCPP terminology.
What should you look for when choosing a CPMS?
Eleven criteria to assess every platform against, from OCPP certification through to the terms for leaving.
Open standards and OCPP version
Check which OCPP versions the platform is actually certified for, rather than simply advertised as compatible. OCPP 1.6 remains widely deployed, while OCPP 2.0.1 provides newer capabilities and a broader technical foundation. Dual certification can give you more flexibility as your network evolves. This matters most when you replace or add chargers, renew a contract or decide to change CPMS.
Hardware compatibility
A CPMS should work with the chargers you already operate and give you freedom to choose future hardware. Ask about specific charger models, not just manufacturer names, and find out whether they are running successfully in production. A platform that only works well with a limited hardware estate can create costs and restrictions further down the line.
Tariff flexibility
Your charging tariffs should reflect how your network actually operates. Look for support for different prices by site, connector, user group and time of day, as well as free, paid or subsidised charging. Check whether tariffs can be changed without technical intervention. The right CPMS should let your commercial model evolve without forcing you to rebuild how your network is managed.
Billing, payments and payouts
Understand the complete payment journey. Ask whether the platform supports contactless payments, app-based charging and RFID, how invoices are generated, what transaction or platform fees apply and when revenue reaches you. Compare the total cost rather than a headline monthly fee. A cheaper CPMS can become expensive if payment, transaction or additional service charges are significant.
Roaming and eMSP connections
Roaming allows drivers using other charging networks or mobility services to access your chargers. Ask which roaming partners and charge cards are supported and which protocol is used for those connections. For operators, effective roaming can increase utilisation by making chargers visible and accessible to a wider pool of drivers without requiring every driver to use your own app.
Uptime, monitoring and fault handling
A CPMS should give you visibility when a charger is unavailable and help you understand why. Look for real-time status information, remote diagnostics, alerts and clear escalation processes. The important question is what happens after a fault is detected. A dashboard showing a red icon is useful, but knowing that someone will act on the problem is considerably more valuable.
Driver support
The driver experience extends beyond the app. Ask who handles support when someone cannot start a charging session, receives an unexpected error or has a payment problem. Find out when support is available, how calls are escalated and whether the service operates under your brand or the CPMS provider's brand. Driver support is part of the charging experience your customers actually see.
Reporting and data
Ask to see the reports you will use, not just a polished dashboard. A useful CPMS should provide clear information about charging sessions, energy consumption, revenue, utilisation, faults and users. Just as importantly, establish what data you can export, in which formats and whether there are additional charges. Your operational data should remain useful outside the platform.
Security and data protection
Your CPMS handles operational, customer and potentially payment-related information, so security should be part of the buying decision. Ask about information security certifications such as ISO 27001, data protection arrangements, access controls, hosting and payment data handling. Understand which organisation is responsible for each part of the technology and payment chain.
Scalability
Consider where the network will be, not just where it is today. A platform that works for ten chargers may have a very different operational model at 100 sites or 1,000 connectors. Ask about the provider's largest networks, how sites and users are managed at scale, and whether pricing or functionality changes significantly as you grow.
Contract terms and exit
Do not leave the exit conversation until you want to leave. Ask about notice periods, contract renewal, data export, charges for extracting information and what happens to charger configurations, driver records and other operational data. Also establish whether your hardware remains usable if you move to another CPMS. A good platform should be valuable because you want to stay, not because leaving is difficult.
Open versus closed CPMS platforms
There is a significant difference between choosing a platform that supports open standards and choosing one that ties your charging network closely to a particular ecosystem.
Closed approach
A closed approach can appear straightforward at the beginning. You may get hardware, software and support from one supplier, with fewer decisions to make during installation.
The trade-off can become clearer several years later.
If you want to replace your CPMS, add chargers from another manufacturer or negotiate better commercial terms, restrictions around hardware compatibility can limit your options. In some cases, an operator may end up replacing functioning chargers simply because the existing platform does not support the alternative system.
Open, standards-based approach
An open, standards-based approach is designed to give you more choice. OCPP allows compatible charge points to communicate with different management platforms, subject to the capabilities and configuration of the individual hardware.
That flexibility matters over the lifetime of a charging network. You are not only buying software for today's chargers. You are choosing the technical foundation for chargers you may purchase, replace and manage for years to come.
The right question is therefore not simply, “Does this CPMS work with my chargers?”
It is, “What choices will I still have three years from now?”
CPMS vs eMSP vs charger manufacturer software: what is the difference?
These terms describe different parts of the EV charging ecosystem, although there can be overlap between services.
Manages the charging network
It connects to charge points, monitors their status, manages tariffs and users, processes charging sessions and provides the operational data and controls needed to run the network.
Provides the driver-facing mobility service
It can give drivers access to charging through an app, account or charging card and can connect them to charging networks through roaming.
Manages the manufacturer's hardware
Depending on the product, it may provide monitoring, configuration, charging controls and other management functions. Some manufacturers offer much broader CPMS functionality.
You may only need one system in a simple private installation. A larger public network may use a CPMS alongside one or more eMSPs and roaming services.
This distinction matters when comparing vendors. A CPMS demo should demonstrate how the network is operated, not simply how an app looks.
What questions should you ask on a CPMS vendor demo?
Take the same questions to every vendor. It makes comparisons much easier and stops the most polished presentation from becoming the deciding factor.
- 01
Which OCPP versions are you certified for, and are you certified or just compatible?
Why it mattersCompatibility claims can mean different things. Certification provides a clearer indication that the platform has been tested against the relevant OCPP requirements.
- 02
Which of my specific charger models are you running in production today?
Why it mattersManufacturer-level compatibility does not tell you everything. Ask about the exact models and configurations in your estate.
- 03
Can I set different tariffs for staff, visitors and the public on the same site?
Why it mattersYour charging model may need different pricing and access rules for different users. Make sure the platform can support that without workarounds.
- 04
How and when does charging revenue reach my account, and what is deducted?
Why it mattersLook beyond the platform subscription. Transaction fees, payment processing and other deductions can materially affect your charging revenue.
- 05
Which roaming networks and charge cards can my chargers accept?
Why it mattersRoaming can increase access and utilisation. Ask which networks are supported today rather than relying on a general promise of roaming compatibility.
- 06
What happens when a charger faults at 2am?
Why it mattersFind out whether the platform detects the problem, who receives the alert, what remote actions are possible and when a human becomes involved.
- 07
Who answers a driver's call, and under whose brand?
Why it mattersDriver support directly affects your customer experience. Establish whether drivers speak to your team, the CPMS provider or another support service.
- 08
What can I export, in what format, and is there a charge?
Why it mattersData portability matters throughout the relationship, not just when you leave. Make sure you understand exactly what you own and can take with you.
- 09
Show me the reporting a finance team would actually use.
Why it mattersAsk to see real reporting rather than a marketing dashboard. You need to know whether the system can answer the financial and operational questions your business asks.
- 10
What is the notice period, and what do I take with me if I leave?
Why it mattersExit terms are one of the easiest things to overlook during procurement and one of the hardest things to fix later.
- 11
What did your last customer migration involve, and can I speak to them?
Why it mattersA provider should be able to explain how real migrations work. A reference can also tell you what the transition was actually like.
- 12
What is on the roadmap for the next twelve months, and what has slipped from the last one?
Why it mattersRoadmaps show where a provider is going, but delivery history tells you how reliably it gets there. Ask for both.
How should you run a fair CPMS comparison?
Set your criteria first
Decide what matters before you start the demos. Weight your criteria according to your network, then ask every vendor the same questions and record the answers in the same format.
Compare like for like
Compare pricing on an equivalent basis. Look at platform fees, per charger or connector charges, transaction fees, payment costs and additional services rather than comparing one headline figure.
Check and test
Finally, check references and test the parts of the platform that matter operationally.
The best CPMS is not necessarily the one with the longest feature list. It is the one that meets your requirements today while preserving your options tomorrow.
Ready to compare CPMS platforms?
Bring your questions to a Fuuse demo.
Rather than giving you a generic product tour, we can talk through your charging estate, the hardware you use, the functionality you need and the questions that matter to your operation.
Bring these questions to a Fuuse demo →Frequently asked questions
What is the difference between a CPMS and a CSMS?
CPMS stands for Charge Point Management System, while CSMS stands for Charging Station Management System. In practice, the terms are often used interchangeably to describe the back office software that manages EV charging stations. CSMS is particularly common in OCPP and technical contexts, while CPMS is widely used commercially.
Do I need a CPMS if my charger manufacturer provides software?
Not necessarily. Manufacturer software may provide everything required for a small or straightforward network. However, operators with mixed hardware, multiple sites, public charging, complex tariffs or roaming requirements may need a dedicated CPMS. The important question is whether the manufacturer's platform meets your current requirements and gives you sufficient flexibility as the network grows.
What is the difference between OCPP 1.6 and OCPP 2.0.1?
OCPP 1.6 is an established version of the Open Charge Point Protocol and remains widely used across existing charging infrastructure. OCPP 2.0.1 is a newer version with expanded functionality and a different architecture. When choosing a CPMS, check which versions it is actually certified for and which versions your chargers support.
Can one CPMS manage chargers from different manufacturers?
Yes, a CPMS can manage chargers from different manufacturers where the hardware is compatible with the platform. OCPP and other open standards can make this possible, but compatibility should always be checked at individual charger model and configuration level. Ask vendors which specific hardware they operate successfully in production.
How much does a Charge Point Management System cost?
CPMS pricing varies according to network size, functionality and commercial model. Providers may charge per charger, connector, site or transaction, while some combine several fees. Payment processing, roaming and additional services can also affect the total cost. Compare the complete cost of operating your network rather than just the advertised subscription price.
What is the difference between a CPMS and an eMSP?
A CPMS manages the charging infrastructure and its operation. An eMSP, or eMobility Service Provider, provides a driver-facing service that can give customers access to charging networks through an app, account or RFID card. A large charging network can use a CPMS to operate its infrastructure while connecting to eMSPs through roaming.
How long does it take to get a new CPMS running?
The timescale depends on the size and complexity of the network, the charger hardware, configuration requirements, integrations and whether you are migrating from another platform. A small estate may be straightforward to onboard, while a large public network requires more planning and testing. Ask the provider for a project specific implementation plan rather than a generic timeframe.
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