Privacy policy

Version in force from 2026-10-21, during the pilot.

Who handles your data

UAB Reservolt ("Reservolt"). Contact: info@reservolt.com.

What we process and why

• Account data: e-mail, name, language, login times. To create your account and provide the service.
• Inverter cloud credentials (Deye or SolisCloud API keys), encrypted with AES-256. We don't keep your Deye password, only the SHA-256 hash that Deye's API asks for.
• Plant data: battery level, solar output, household use and grid exchange every 5 minutes, and the inverter schedule. Needed to plan the schedule and work out savings.
• Settings you enter: system parameters, tariff plan, ESO net-metering method and balance, system cost, approximate location (rounded to ~5 km) for the solar forecast.

Legal basis: performance of a contract (GDPR Art. 6(1)(b)). We don't sell data or use it for advertising.

Who receives data

• Hosting: Hetzner Online GmbH (EU data centres).
• E-mail delivery: an EU e-mail provider (e.g. Brevo).
• Deye or Solis clouds, only to read your plant's data and write the schedule on your instruction.
• Open-Meteo, only rounded coordinates for the weather forecast, no personal data.

How long we keep it

• 5-minute readings for 60 days, the event log for 120 days.
• Daily summaries and settings while you have an account.
• Deleting your account deletes all its data, credentials included, immediately. Backups roll over within 30 days.

Your rights

You can download a copy of your data (Account → Download my data), correct it, delete your account yourself, or write to us. You may also complain to the State Data Protection Inspectorate of Lithuania.

Cookies

Only essential cookies: your login session and language choice. No analytics or advertising cookies.