British Gas are offering free electricity when you switch and upgrade to smart meters. So is that a good deal or just a gimmick to get you to change your gas and electricity supply to them. There’s a way to check every supplier on the market via our free tariff checker. Unlike most comparison companies we access ever single supplier, large and small. You can see for yourself what’s on offer and make your mind up with all the facts. No doubt the free energy offer from British Gas won’t be the only offer as other companies will seek to match it. British Gas Free Time is a weekend offer that might or might not suit you. If you are often out at weekends, there might be other tariffs that would work out cheaper.