It still is depending on the supplier, you really have to keep shopping around to get the best deal and try and avoid lock-ins and exit fees.

Octopus energy were about the cheapest on my last revision a couple of months ago, £0.41 daily standing charge and £0.25/KWh

I think British Gas were the worst, IIRC it was round £0.48 daily and £0.31/KWh so around $0.41/KWh