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CostPerKWh

Privacy Policy

Last updated: November 2, 2026

This policy explains what data is collected when you use costperkwh.com (the "Site"), operated by Juan Antonio Fernández Selma, Calle Poeta Alonso de Bonilla, 14012 Córdoba, Spain ("we").

Measurements you enter

All calculations run in your browser. The numbers you type are not sent to us or stored on our servers. Your dark-mode choice and the electricity rate you pick are saved in your browser's local storage so they carry over between pages.

Advertising and cookies

The Site shows ads served by Google AdSense. Google and its partners use cookies and similar technologies to serve ads based on your prior visits to this and other websites, to limit how often you see an ad and to measure ad performance.

Visitors in the European Economic Area, the United Kingdom and Switzerland are shown a consent message, provided through a Google-certified consent management platform, before any non-essential cookies are used. You can change your choice at any time from the privacy settings link shown with that message.

Server logs

Our hosting provider automatically records technical data such as IP address, browser type and pages requested, for security and to keep the Site running. These logs are kept for a limited time and are not used to identify you.

Your privacy rights

Depending on where you live (for example California, other US states with privacy laws, or the European Union), you may have the right to know what personal information is collected about you, to access or delete it, to correct it and to opt out of its "sale" or "sharing" for targeted advertising. We do not sell personal information for money. Use of advertising cookies may count as "sharing" under California law; you can opt out using the links above or your browser's Global Privacy Control signal, which we honor where required.

To exercise any right, email juanfersem@gmail.com. We will not discriminate against you for exercising your rights.

Children

The Site is not directed to children under 13, and we do not knowingly collect their personal information.

Changes

We may update this policy. The date at the top shows the latest version.