Privacy notice

1. Controller

Oleg Fallmann, trading as “EnergoInformatics”
Danziger Str. 9
66121 Saarbrücken
Germany
Telephone: +49 152 23157980
E-mail: info@energoinformatics.com

2. Scope and data sources

This notice applies to the public website energoinformatics.com and the associated booking and administration backend at admin.energoinformatics.com. We usually receive personal data directly from you when you use the website, make a booking, initiate a payment or contact us. We also receive payment status and transaction identifiers from Stripe.

3. Hosting and server logs

The website, backend and database are hosted on infrastructure provided by IONOS SE, Elgendorfer Str. 57, 56410 Montabaur, Germany. Technical connection data may be processed, including IP address, date and time, requested URL, referrer, browser and operating system information, transferred data volume, status and error codes. Processing serves secure and stable operation, troubleshooting and abuse prevention and is based on Article 6(1)(f) GDPR. Logs are deleted or anonymised when no longer needed for security and operation, unless an incident or legal duty requires longer retention.

IONOS privacy information.

4. Public API and back office

The public site loads offers, events, prices, availability and books from the backend API. Apart from technical connection data, no personal data is required for these requests. The back office is restricted to authorised users and uses a technically necessary secure session cookie. Administrative and security-relevant actions may be logged with user ID, time and IP address under Article 6(1)(f) GDPR.

5. Language preference

When you manually choose a language, the value eiLanguageManual is stored in your browser's local storage until you delete it. It contains only the selected language and is required to provide the language function you expressly requested under section 25(2)(2) TDDDG. It is not used for tracking or profiling.

6. Bookings

Required fields are necessary to conclude and perform the booking. We also store the version of the participation and cancellation terms and withdrawal notice accepted during booking, together with the acceptance time. The checkbox incorporates and documents those contractual terms; processing needed for the contract is based on Article 6(1)(b) GDPR rather than revocable privacy consent. Article 6(1)(c) GDPR additionally applies to invoicing, accounting and tax records.

7. Stripe payments

Online payments are handled through Stripe Payments Europe, Limited, 1 Grand Canal Street Lower, Grand Canal Dock, Dublin, Ireland. You are redirected to Stripe Checkout. We transmit data such as e-mail address, booking number, event, amount, currency, language and required billing/technical information. Payment card or bank details are entered directly at Stripe and are not stored on our server. We retain transaction identifiers, Checkout/Payment Intent IDs, amount, currency and payment status to reconcile payments, enable remaining payments and issue invoices.

Processing is based on Article 6(1)(b) and, where legally required, Article 6(1)(c) GDPR. Stripe may process data as an independent controller for fraud prevention, compliance and security. Transfers outside the EEA, including to the United States, may occur using mechanisms such as the EU-US Data Privacy Framework and Standard Contractual Clauses. Stripe privacy information.

8. Lexware Office invoicing

After payment, required contact, address, booking, service, date, amount and payment information is transferred to Haufe-Lexware GmbH & Co. KG, Munzinger Straße 9, 79111 Freiburg, Germany (Lexware Office) to create and store invoices and maintain accounting records. The invoice PDF is returned to our backend and may be attached to the payment confirmation. Legal bases are Article 6(1)(b) and (c) GDPR. Lexware Office privacy and security.

9. E-mail delivery

Booking confirmations, payment links, organisational messages and invoices are sent by e-mail. Names, e-mail addresses, booking/payment data and invoice PDFs are processed by the configured mail provider. Production server and e-mail services are provided by IONOS unless a different SMTP provider is configured. Legal bases are Article 6(1)(b), (c) and, for technical delivery logs, (f) GDPR.

10. Google Maps

Maps are supplied by Google Ireland Limited, Gordon House, Barrow Street, Dublin 4, Ireland. No map is loaded until you click “Show map”. The click initiates a connection to Google and may transmit IP address, device/browser information, time and map query and may enable Google storage technologies. The legal basis is your consent under Article 6(1)(a) GDPR and section 25(1) TDDDG. Google may process data outside the EEA. Google Privacy Policy.

11. External communication and shop links

Links to WhatsApp, Telegram, Google Maps and external bookshops do not establish a connection merely by loading our site. Once clicked, the external provider processes data under its own responsibility. Messages sent through WhatsApp or Telegram are processed to answer your enquiry under Article 6(1)(b) or (f) GDPR. E-mail is available as an alternative. Provider information: WhatsApp and Telegram.

12. Cookies, analytics and advertising

The public website does not use analytics, marketing trackers, advertising cookies or externally hosted fonts. The only first-party storage is the language preference and, for authorised back-office users only, the necessary session cookie. Stripe and Google Maps may use their own technologies after you open those services.

13. Recipients

Recipients may include hosting and mail providers, Stripe and participating payment providers/banks/networks, Lexware Office, tax or legal advisers and authorities where required. Google, messenger and shop providers receive data only after active use of their external function. We do not sell personal data or disclose it for third-party advertising.

14. International transfers

Stripe, Google, WhatsApp and Telegram may process data outside the EU/EEA. Where required, providers state that they rely on adequacy decisions such as the EU-US Data Privacy Framework or on Standard Contractual Clauses. Voluntary use of an external map or messenger may additionally involve Article 49(1)(a) GDPR.

15. Retention

• Enquiries are retained until completion and thereafter only as necessary for documentation and legal claims.
• Booking, payment and contract data are retained for contract performance and applicable limitation and retention periods.
• Invoices and accounting vouchers are generally retained for eight years under German tax rules; business correspondence may be retained for six years.
• Backups remain until routine overwriting unless longer preservation is required.
• The language preference remains until deleted in the browser.

16. Your rights

You may have rights to access, rectification, erasure, restriction, portability and objection. Consent may be withdrawn at any time for the future. Contact info@energoinformatics.com.

17. Complaint

You may complain to a supervisory authority. The authority for our registered office is the Independent Data Protection Centre Saarland, Fritz-Dobisch-Str. 12, 66111 Saarbrücken, Germany, poststelle@datenschutz.saarland.de.

18. Automated decisions and security

We do not make solely automated decisions with legal or similarly significant effects under Article 22 GDPR. Stripe may conduct automated fraud and security checks under its own responsibility. Data transmission uses TLS/HTTPS; back-office access is authenticated and role-based.

19. Controlling version and updates

This translation is provided for convenience. In case of discrepancies, the German privacy notice applies. Last updated: 30 July 2026.