Smart meters can replace prepaid meters, but again, it’s worth contacting your energy supplier to learn more about their rollout plans. Users of prepaid meters may in fact get the biggest benefit from smart meters, due to the ability to monitor energy consumption in real-time and see how much credit is remaining on the meter. Smart meters can be topped up through smartphone apps, by text or over the phone. Topping up at a shop will also be easier as you will no longer have to insert a card back into the meter; the credit will instead automatically be added to the account. This is especially useful if your meter is in a hard-to-reach place. No more crawling into the cupboard under the stairs with a torch to top it up!