Privacy and cookies

Last updated 14 November 2026

Sun Maths is run as a small independent website in England. In short: we collect very little, and we never sell it.

Using the calculators

The calculators work entirely in your browser. What you type in, such as your electricity use or roof size, is not sent to us or stored by us.

Visitor statistics

We use Cloudflare Web Analytics to count visits. It does not use cookies, does not track you across other websites, and does not identify you personally.

Hosting and fonts

The site is hosted by Cloudflare, which keeps standard server logs for security. The fonts come from Google Fonts, so your browser connects to Google’s servers to download them.

Links to other companies

We may in future link to companies that provide solar quotes, and may be paid if you use them. If we do, we will say so clearly, update this page, and ask for your consent before any advertising cookies are used.

Your rights

Under UK data protection law, you can ask what personal information we hold about you and ask us to correct or delete it. You can also complain to the Information Commissioner’s Office at ico.org.uk.