uSwitch 2018 customer ratings are based on an independent YouGov survey that was conducted between 7 November and 1 December 2017. A total of 17,313 UK energy customers were asked to rate their energy supplier on overall satisfaction, transfer process, value for money, customer service and how likely they were to recommend. We equally weighted those five scores across suppliers with at least 50 responses to create an average supplier rating for each.
When comparing electric generation suppliers you need to know the Annual Price-to-Compare and the Average Annual Cost (cents per kilowatt hour or kWh for short) that a supplier must beat (compared to DP&L's standard offer rate) in order for you to save money. In other words, the Annual Price-to-Compare is the amount that you no longer have to pay to DP&L when you choose an alternate electric generation supplier.
Every single energy supplier in the UK is regulated by Ofgem, the industry regulator. This means that the smaller, lesser-known companies have to follow exactly the same rules as the bigger, more established ones. If a company goes bust, you’ll be covered by Ofgem – they’ll ensure your supply isn’t cut off, and they’ll appoint a new supplier to take over your tariff.