Calculator inputs stay in your browser
These calculators run on your device. We do not send the numbers you enter to an application server, and the site does not require an account. Downloading a CSV creates the file locally.
If you choose Share scenario, your inputs are encoded into a link. Anyone you give that link to can read those numbers. URL query parameters may also appear in browser history and hosting logs, so avoid sharing confidential site information through this feature.
Hosting and basic requests
Your browser sends normal request information, such as IP address, requested path and browser details, to the hosting provider to load the site. The hosting platform may process operational or security logs. This version does not add advertising trackers, third-party analytics, non-essential cookies or external fonts.
Contact and external websites
If you email us, Arcgrid receives the information you include. External websites, including the Arcgrid simulator and linked source publications, have their own privacy practices. The Arcgrid simulator uses a separate account and is not part of this calculator.
Publisher and contact
The publisher is AUTONOMOUS RENEWABLES CONTROL LTD, trading as Arcgrid, company number 17478132. For privacy questions, contact hello@arcgrid.co.uk. You can also read Arcgrid’s privacy policy.