{"id":2016,"date":"2026-04-27T14:41:27","date_gmt":"2026-04-27T12:41:27","guid":{"rendered":"https:\/\/certipower.be\/kennisbank\/choosing-a-home-charging-station-11-kw-vs-22-kw-vs-smart-station-decision-tree\/"},"modified":"2026-10-07T21:16:28","modified_gmt":"2026-10-07T19:16:28","slug":"choosing-a-home-charging-station-11-kw-vs-22-kw-vs-smart-station-decision-tree","status":"publish","type":"kennisbank","link":"https:\/\/certipower.be\/en\/kennisbank\/choosing-a-home-charging-station-11-kw-vs-22-kw-vs-smart-station-decision-tree\/","title":{"rendered":"Choosing a home charging station: 11 kW, 22 kW or smart charger, the decision tree"},"content":{"rendered":"
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You are choosing a home charger you will use for 8 to 12 years. Once installed, switching is expensive.<\/p>\n

Four questions determine which charger suits you.<\/p>\n

Four questions that determine your choice<\/h2>\n
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01<\/div>\n
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Single-phase or three-phase connection?<\/h3>\n

If you have a single-phase connection, as in most older homes, 11 kW three-phase is not an option without modifying your fuse box.<\/p>\n

Key takeaway:<\/strong> 7.4 kW single-phase is then your maximum, and that is more than enough for 95% of users.<\/div>\n<\/div>\n<\/div>\n
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02<\/div>\n
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How much do you drive per day?<\/h3>\n

Under 100 km per day, 7.4 kW or 11 kW is more than enough: one night of charging adds 60 to 110 km.<\/p>\n

Key takeaway:<\/strong> above 200 km per day, or with several cars on one charger, 22 kW is worth the extra cost.<\/div>\n<\/div>\n<\/div>\n
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03<\/div>\n
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Do you have solar panels?<\/h3>\n

If you want to charge your car on solar energy during the day, you need a charger that matches the charging power to your solar surplus. Not every 11 kW charger can do that.<\/p>\n

How to approach it:<\/strong> ask explicitly about PV integration. Specific models, such as Smappee or Alfen with the right configuration, can do it.<\/div>\n<\/div>\n<\/div>\n
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04<\/div>\n
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Do you want split billing with your employer?<\/h3>\n

Then your charger must be OCPP-compliant and able to connect to your employer\u2019s management platform. Cheap chargers from the DIY store often do not qualify. Why that matters: OCPP and interoperability<\/a>.<\/p>\n

How to approach it:<\/strong> ask about it explicitly before buying.<\/div>\n<\/div>\n<\/div>\n<\/div>\n

The decision tree at a glance<\/h2>\n
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City dweller, single-phase<\/span>7.4 kW basic<\/strong>Average driving. \u00b1 \u20ac1,500 installed.<\/span><\/div>\n
Household with solar panels<\/span>11 kW smart<\/strong>With solar integration and an electric company car. \u00b1 \u20ac2,000 to \u20ac2,500 installed.<\/span><\/div>\n
High-mileage driver or two cars<\/span>22 kW smart<\/strong>Or an operational need. \u00b1 \u20ac2,800 to \u20ac3,500 installed.<\/span><\/div>\n<\/div>\n
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Which charger suits your situation?<\/strong>We look at your connection, driving and solar panels and make a tailored quote.<\/span><\/div>\n
Request a quote<\/a><\/div>\n<\/div>\n

Not a good reason to choose 22 kW<\/h2>\n

\u201cJust to be safe\u201d or \u201cbecause it is possible\u201d. If you never notice the difference in charging time, it is wasted budget.<\/p>\n

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An 11 kW charger fully charges a car overnight. A 22 kW charger does too, just faster. That makes no difference if you sleep until morning anyway.<\/p>\n<\/div>\n

Also keep in mind<\/h2>\n