The advertising watchdog has dismissed complaints from Ecotricity over claims about Tesla’s ‘supercharger’ electric car chargers.

Tesla claims its ‘supercharger’ is the world’s fastest charging station. Its website also claimed that buyers of its Model S would, over a five year average length of ownership, save almost £6,000 over a petrol car. Both points were contested by Ecotricity.

The Advertising Standards Authority rejected both complaints after considering Tesla’s evidence.

Tesla showed that its Model S could accept 120kw of power, whereas the maximum other EVs could accept was 60kw, so the ASA said therefore the Supercharger was faster at charging compatible EVs than any other used worldwide currently.

The ASA was also happy the £6,000 cost saving claim was substantiated, by Tesla’s evidence that UK Model S owners used Superchargers for 19% of charges, and of a £0.14 per kWh cost versus an average £1.17 per litre for petrol from the prior five months.