The Commons Transport Select Committee said owners should be incentivised to recharge batteries 'little but often' to avoid shortages.
Tory MP Huw Merriman, who chairs the committee, warned that the National Grid would need to be upgraded if it was going to cope with charging throughout the day.
He said: 'Unless the National Grid gains more capacity, consumer behaviour will have to alter so that charging takes place when supply can meet the additional demand. The alternative will be blackouts in parts of the country. We also cannot have a repeat of the broadband and mobile 'not spot' lottery which would mean those in remote parts cannot join the electric vehicle revolution."
