OVO Energy is the independent UK gas and electricity supplier that's won 11 of the 12 award categories at the uSwitch Energy Awards for 3 years running. It's on. For security reasons, the URL link will expire after 30 minutes; after that you need to start again. Back to login. © OVO Energy Limited. Terms & Conditions. My OVO is the place to take control of your account online. To log in for the first time, visit My OVO and follow the prompts. Or read on for a full guide.