Is building a CPMS cheaper than buying one?

Rarely, once you count all three TCO layers over five years, and especially once you count the energy revenue a good platform earns back. The upfront build is the smallest line. The recurring cost is a permanent team maintaining eight subsystems, plus the operational and missed-revenue layers. Start from the whole cost, net of energy earnings, not the licence fee.

How does energy management change the TCO?

A platform with energy and load management turns your chargers into a grid asset. Load shifting avoids grid-upgrade costs, flexibility markets such as FCR-D pay recurring revenue, and CO2 cashback converts renewable surplus into income. That revenue offsets the platform cost, so the right platform can pay for part, or in favourable cases all, of its own running cost. Build your own and you forgo this unless you also build the energy-market integrations.

What exactly should I build versus buy in a hybrid model?

Buy the undifferentiated core: OCPP connection management, payments, roaming, uptime and monitoring, energy management and compliance. Build only what differentiates you: pricing and packaging, your app or portal, data products. Confirm the platform exposes real APIs and webhooks so you can build on top without forking it.

Who handles driver support if I build my own CPMS?

You do, around the clock, in every language your network serves. A build business case that budgets for developers but not for staffed phone lines, a technical second line and named account support has understated the recurring cost substantially. On a bought platform this capacity is shared across the vendor's customer base, which is why it costs a fraction of running it alone.

Will buying a platform lock me into one vendor?

It can, if the platform is not built on open standards. Insist on OCPP for your chargers and open roaming protocols, confirm you can move chargers to another management system without replacing hardware, and check the API surface so you keep the option to build. Open standards are what make buying and hybrid reversible.

What happens if I do not keep up with AFIR?

Non-compliant public charge points fall foul of EU rules on a timeline: contactless ad-hoc payment and price transparency from April 2024 for new charge points of 50 kW or more, extending to all public points of that size from January 2027. Whether you build or buy, your platform has to deliver these, and buying makes keeping current the vendor's obligation.