Updated 5 August 2026
Privacy Policy
This policy explains what information we collect when you use UK DIY Solar, why we collect it, and how we keep it to a minimum.
inventory_2What information we collect
When you use the calculator we may collect:
- checkThe first part of your postcode (for example, OX11) so we can estimate local solar generation.
- checkThe calculator options you choose, such as panel size, orientation, battery selection and electricity tariff.
- checkTechnical information needed to operate the website, such as server logs.
We do not collect your full postcode, name or payment details to use the calculator.
task_altWhy we collect it
We use this information to:
- checkCalculate estimated solar generation and electricity bill savings.
- checkRecommend suitable DIY solar kits.
- checkImprove the calculator and understand how people use the website.
- checkMeasure affiliate link performance.
data_saver_onData minimisation
We intentionally store only the first part of your postcode rather than your full postcode. This provides enough information to improve the calculator while reducing the amount of personal location data we keep.