Necessary operation
Essential processing supports page delivery, contact protection and, when enabled, remembering your privacy choice. A configured consent platform may need storage to record that choice. Calculator values are not saved as a personal history. The operator must maintain an accurate inventory of actual cookies, providers and durations when changing the production configuration.
Analytics, advertising and third parties
Google Analytics and AdSense are optional integrations. Their scripts wait for the relevant explicit consent signals in this application. Before advertising in the EEA, United Kingdom or Switzerland, the operator must activate and test a Google-certified consent platform integrated with the applicable IAB Transparency and Consent Framework.
Change your choice
Use the permanent privacy-preferences button to revisit the configured consent message. Rejecting optional purposes leaves the calculators available. Withdrawing consent stops new optional activity and may reload the page, so first note any result you need. Browser controls can also remove stored cookies; this can reset choices and does not automatically erase data previously received by external providers.
Analytics storage
With your permission, Google Analytics counts visits and calculator events using page and device information and approximate location. Numeric calculator inputs are excluded. The consent choice is kept in local storage under energycalc-analytics-consent-v1 for 180 days. Google cookies _ga and _ga_* identify a browser and session; this site requests a maximum lifetime of 180 days without renewal. Rejecting or withdrawing prevents further analytics loading and removes these first-party cookies. You can change your choice through Cookie preferences; withdrawal reloads the page. Google may process data internationally. Advertising is separate and is not enabled by this analytics choice.