Privacy at Backup Hours
Effective date: 21 September 2026
Calculator inputs
Battery and appliance calculations run in your browser. We do not ask you to create an account, and the calculator does not upload your appliance list or battery inputs to us.
Hosting records
Our hosting provider may process technical request information needed to deliver and secure the site, such as IP address, browser details, requested pages and request time.
Optional analytics
Google Analytics loads only when you select “Allow analytics” on the calculator page. It may receive page and interaction information, approximate location and device type, but not your appliance-list contents. You can change your analytics choice using “Change analytics choice” in the calculator footer.
Advertising
One Google AdSense display placement is reserved below the calculator guidance. Ads may appear after Google approves the site. Google and its partners may use cookies or similar identifiers to provide and measure ads, subject to applicable consent choices. Where required, a Google-certified consent message offers choices before relevant ad processing. Analytics consent is separate from advertising consent.
Questions and changes
For a privacy question, contact the portfolio operator at zadigitalstudiosupport@gmail.com. We will update the effective date when our practices materially change.