About cookies

Cookies are used on websites, including mobile sites and mobile apps, in order to improve and personalise your experience by enabling the site to 'remember' you, either for the duration of your visit (using a 'session cookie') or for repeat visits (using a 'persistent cookie').

Cookies do lots of different jobs, like letting you navigate between pages efficiently, storing your preferences, and generally improving your experience of a website; thereby making the interaction between you and the website faster and easier.

A cookie is a simple text file that is stored on your computer or mobile device by a website's server and only that server will be able to retrieve or read the contents of that cookie. Each cookie is unique to your web browser. It will contain some anonymous information such as a unique identifier and the site name and some digits and numbers. It allows a website to remember things like your preferences or what’s in your shopping basket.

Cookies used by Sainsbury's Energy

Sainsbury's Energy and our third party partners may set a range of cookies when you visit www.sainsburysenergy.com and other Sainsbury's Energy websites. Cookies enable us to identify your device, or you when you have logged in. We use cookies that are strictly necessary to enable you to move around the site or to provide certain basic features. We use cookies to enhance the functionality of the website by storing your preferences, for example. We also use cookies to help us to improve the performance of our website to provide you with a better user experience. We allow our third party partners to use advertising cookies to collect information about your browsing habits, so that they can provide relevant advertising to you.

Strictly Necessary (Essential for making our site work properly)

These cookies let you move around the website and support essential features like secure areas, shopping baskets and online billing. These cookies do not gather any information about you that could be used for marketing or remembering where you have been on the internet. Such cookies are essential to provide you with the desired website experience and are not used for gathering information, remembering your preferences or advertising products or services to you. If you disable these cookies your experience of our website may be affected, and we may not be able to provide some services to you.

Performance (Collect information about how you use our website)

Performance cookies collect information about how you use our website e.g. which pages you visit, and if you experience any errors. These cookies do not collect any information that could identify you – all the information collected is anonymous and is only used to help us improve how our website works, understand what interests our users and measure how effective our advertising is. By using our website, you agree that we can place these types of cookies on your device.

Functionality (Used to provide services or to remember settings to improve your visit)

Functionality cookies are used to provide services or to remember settings (such as layout, text size, font, and other customisable parts of our web pages) to improve your experience. Items such as survey offers, web chat session offers, display your settings, and identifying you as being logged in to our website are all supported by functionality cookies. The information these cookies collects may be anonymised and they cannot track your browsing activity on other websites. By using our website, you agree that we can place these types of cookies on your device.

Advertising (Linked to services provided by third parties)

Advertising cookies are used to deliver advertisements which are relevant to you and your interests. They are also linked to services provided by third parties, such as 'Like' and 'Share' buttons. The third party provides these services in return for recognising that you have visited our website.

We use Advertising cookies to link to social networks like Facebook, who may subsequently use information about your visit to target advertising to you on other websites. We also use these cookies to provide advertising agencies with information about your visit so that they can present you with personalised advertising. By using our website, you agree that we can place these types of cookies on your device. However, by altering the privacy settings on your browser you are able to decline the use of advertising cookies.

Disabling cookies

If you do not want us to use cookies in your browser, you can remove cookies from your computer's hard drive, or set your browser to block cookies or to send a warning notice before a cookie is stored on your computer. However, please note that you may not be able to use many of the services on our website or other websites without cookies.