We keep this short because we collect very little.
The short version
- We use Google Analytics 4 to count visits and see which pages are useful. Its cookies are set only if you click Accept in the cookie banner.
- We do not use advertising or advertising cookies.
- We have no accounts, comment forms or newsletter sign-ups.
- You can change your choice at any time with Cookie settings at the bottom of every page.
Cookies
| Cookie | Set by | Purpose | Kept for | When |
|---|---|---|---|---|
_ga, _ga_TBC9WPGTHG |
Google Analytics | Distinguish visits and sessions for statistics | Up to 2 years | Only after you accept |
We also store your cookie choice in your browser’s local storage (op-consent) so we don’t ask again on every page. This is not sent to us or to anyone else.
If you reject, or have not chosen yet, Google Analytics runs in “consent mode”: no analytics cookies are set and Google receives only basic, cookieless signals (for example that a page was viewed), which it uses in aggregate. If you reject after accepting, we delete the Google Analytics cookies from your browser.
What is processed when you visit
Our web server. Like any website, our server receives your IP address, the page you requested, your browser’s user-agent and the referring page. These are written to server logs, which we use only for security and troubleshooting and keep for a limited period before they are deleted.
Cloudflare. Our site is delivered through Cloudflare, which processes the same request data to deliver pages and protect the site against attacks. Cloudflare acts as our service provider; see Cloudflare’s privacy policy for details.
Google Analytics. Google processes visit data on our behalf to produce statistics. We do not use it for advertising, and Google signals and ad personalisation are off. See Google’s privacy policy for how Google handles this data.
Live grid data. Our live electricity panels ask the Carbon Intensity API (run by the National Energy System Operator) for the latest figures directly from your browser. That means the API’s servers receive your IP address and browser details when you view a page with live data. No cookies or personal data are sent with the request.
Search. The site search runs entirely in your browser; your search terms are not sent to us or anyone else.
Calculators. Our calculators run entirely in your browser. What you type into them is not sent to us or anyone else.
Fonts and images are hosted on our own server, so loading them does not involve third parties.
If you email us
If you write to us, we use your email address and message only to reply and, if relevant, to correct the article you wrote about. We do not add you to any mailing list.
Your rights
Under UK data protection law you can ask what personal data we hold about you, ask us to correct or delete it, and complain to the Information Commissioner’s Office. To make a request, contact us.
Changes
If anything here changes, we will update this page first and change the date at the top.