OCPP EV chargers explained

OCPP stands for Open Charge Point Protocol. In simple terms, it is a standard that helps chargers communicate with broader software platforms rather than being tied only to the manufacturer's own app or system.

For many UK home buyers, OCPP is not the first thing to care about. It becomes more relevant if you want flexibility, broader integration options, or you simply prefer not to be locked into one ecosystem forever. But it is easy to overrate if your main goal is just straightforward home charging.

What OCPP means in practice

• The charger may be able to work with a wider range of software platforms rather than relying only on the manufacturer's own app
• You may have more long-term flexibility if you care about platform choice or ecosystem lock-in
• It can matter more for technically minded buyers than for households who mainly want reliable scheduling and easy charging
• It does not automatically make a charger easier to use day to day

When OCPP matters

• You want more flexibility over long-term software and platform choices
• You are comfortable with a slightly more technical buying decision
• You may want the charger to fit into a wider smart energy setup later

When it matters less

• You mainly want a straightforward app and simple scheduling
• You are choosing between chargers based on tariff support, solar use, or cable setup first

Where buyers often get OCPP wrong

• Treating OCPP as a must-have when they mainly want a charger that is simple and reliable at home
• Assuming open-protocol support automatically means a better day-to-day app experience
• Choosing on technical flexibility before deciding whether tariff support, solar behaviour, or cable setup matter more
• Paying for a more technical feature set they are unlikely to use after installation

How to use this when comparing chargers

If you already know you care about platform flexibility or future integration options, OCPP deserves a place in the shortlist. If not, treat it as a secondary filter rather than the starting point of the decision.

In the current catalogue, Wallbox Pulsar Max is the clearest OCPP-focused model to compare. Pair it against Ohme Home Pro on the compare page if you want to weigh open-protocol flexibility against simpler tariff-led charging. Then read Best Smart EV Chargers UK if you want to keep the wider smart-feature trade-offs in view.