Users stand to save up to £298 annually, automatically credited to their energy bills.
Users can save on electric vehicle charging costs by activating the free SmartCharge feature in the Hive app.
SmartCharge assists EV users in minimising energy expenses by identifying optimal charging times.
British Gas will automatically charge the EV during the cheapest energy periods, offering a rate of 4.95p/kWh for overnight charging between 12 am and 5 am.
British Gas provides a credit of 4p per kWh for charging periods exceeding six hours and 2p per kWh for durations less than six hours.
New customers can also enjoy a year of free charging with the FreeCharge promotion – the promotion is open to both new and current British Gas electricity customers possessing a smart meter and acquiring one of Hive’s EV Chargers.
Kim Royds, Director of Mobility, Centrica New Business and Net Zero, said: “We’re committed to making the transition to net zero simple and affordable and EVs play a key part in this.
“Through our innovative SmartCharge offering, we’re helping EV owners take charge of their energy bills and access the cheapest EV charging rate on the market while also helping manage the demand on the grid.”