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Most UK homeowners install a smart 7 kW wall box, fitted by an OZEV-approved electrician on a dedicated radial circuit from the consumer unit — a straightforward half-day job. The £350 OZEV Chargepoint Grant reduces the typical all-in cost to £450–£850 for most standard installations. The charger must be a smart unit (legally required since December 2021), meaning you can schedule charging to cheap overnight tariffs and potentially halve your running costs. Installation is notifiable work under Building Regulations Part P — DIY is not legal and voids the grant. Check the OZEV approved installer list at GOV.UK and get at least three written quotes before committing.