Privacy-First · Zero Tracking

Privacy Policy

Transparent disclosure regarding the processing of technical and personal data

🏢 Data Controller

Jonas Glauß
Augustastraße 254
46537 Dinslaken
Germany

✉️ Contact

Email: contact@gridkalk.com
Website: www.gridkalk.com

⚡ Client-Side Computation (Privacy by Design)

Using our clean energy calculators (Solar PV, Battery Storage, Grid Independence, Heat Pumps, Heating Comparison, EV Charging) does not require submitting personal identifiable information.

Zero Server Storage of Calculation Inputs:All inputs (such as system size, annual electricity consumption, heating degree days, or equipment selections) are calculated exclusively client-side inside your browser. At no point are your personalized simulation numbers transmitted to our web servers or stored in remote databases.

🖥️ Web Hosting & Technical Server Logs

Our website is hosted on dedicated infrastructure located within the European Union. Whenever you visit this website, the web server automatically records essential technical data in server access logs:

Browser model and build version
Operating system architecture
Referrer URL (previously visited page)
Hostname or IP address of the accessing client
Date and timestamp of the server request

This data is strictly necessary to maintain system stability, ensure web security, and defend against malicious cyber attacks. The processing is based on statutory legitimate interests (Art. 6(1)(f) GDPR). Server logs are not linked with external data sources.

💾 Local Browser Storage (localStorage)

GridKalk does not deploy tracking cookies or third-party marketing beacons. To improve usability, we utilize browser local storage (localStorage) strictly to retain your selected city, state filter, or calculator view for subsequent sessions. This state remains isolated on your device and is never transmitted to us.

🛡️ Your Rights Under Data Protection Regulations

As an operator based in the EU providing global services, we guarantee the following statutory rights regarding personal data:

Access & RectificationRight to obtain confirmation on stored personal technical data (Art. 15 GDPR) and request rectification of inaccurate records (Art. 16 GDPR).

Erasure & RestrictionRight to request the deletion of server logs (Art. 17 GDPR) or demand restriction of processing (Art. 18 GDPR).

Right to ObjectRight to object to data processing activities based on legitimate grounds arising from your particular situation (Art. 21 GDPR).

Supervisory AuthorityRight to lodge a complaint with a competent data protection supervisory authority (Art. 77 GDPR).

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Suggestion or Feature Request?

Are you missing a specific calculator or metric, or would you like to improve the platform? We appreciate any feedback from the community.

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🐞

Report a Bug

Did you notice a calculation error, incorrect data for a city, or a broken link? Let us know directly so we can fix it immediately.

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