Sunnix Transparency

Last updated May 2026

On this page, we explain clearly and simply what data Sunnix collects, how it is used, and how long it is kept. We never save personal information (name, surname, phone number, etc.), unless you voluntarily enter it in a contact form.

Sessions

Every time you start a simulation or configuration on Sunnix, a temporary session is created that is only used to manage navigation in the simulation or configuration flow and compile internal statistics.

Saved data

  • Precise geographic coordinates (latitude and longitude) are those you select on the map, or those automatically returned by the geocoding system starting from the entered address
  • Session type (simulation or configuration)
  • Whether you are using the Google Solar API or not
  • Session status (created or completed)
  • ID of the associated simulation or configuration (if completed)

Retention period

Sessions are kept for a maximum of 30 days, then automatically deleted

Example

If you enter an address, Sunnix shows you the map. You click the correct roof (if not already selected), and the precise coordinates of that point are saved (e.g., latitude 45.071, longitude 7.686). These coordinates remain only in the session logs and are deleted after 30 days

Simulations

When you perform a quick simulation, Sunnix saves the data to allow you to return and view the results later or share them with others.

Saved data

  • Entered address
  • Precise geographic coordinates of the point selected on the map (same as the session)
  • Maximum desired power for the system to simulate (kWp) and actual simulated power
  • Chosen panel (generic, from a partner company, or custom)
  • Estimated annual and monthly production (kWh)
  • Total number of panels and occupied area
  • Total cost of panels (if calculated, depends on whether the price per watt for the panel is present)
  • Creation date
  • Other data present in the summary are automatically calculated by the page, but are not saved
Important: The additional data you can enter in the summary (e.g., installation cost, paperwork, battery storage, etc.) are not saved. They remain visible only as long as you keep the page open. If you decide to send a contact request, this additional data is included in the request, but can only be viewed by the Sunnix team to answer you in the best possible way. They are not visible when reopening the configuration.

Retention period

Simulations are kept for 48 hours, then automatically deleted.

Example

If you perform a simulation for a 3kWp system on your roof, Sunnix saves the estimated production data and the chosen power. After 2 days, the simulation is automatically deleted.

Configurations

When you perform a configuration, Sunnix saves the data to allow you to return and view the results later or share them with others.

Saved data

  • Entered address
  • Precise geographic coordinates of the point selected on the map (same as the session)
  • Maximum desired power for the system to simulate (kWp) and actual simulated power
  • Chosen panel (generic, from a partner company, or custom)
  • Data of the created pitches (surface area, tilt, orientation)
  • Estimated annual and monthly production (kWh)
  • Total number of panels and occupied area
  • Total cost of panels (if calculated, depends on whether the price per watt for the panel is present)
  • Creation date
  • Other data present in the summary are automatically calculated by the page, but are not saved
Important: The additional data you can enter in the summary (e.g., installation cost, paperwork, battery storage, etc.) are not saved. They remain visible only as long as you keep the page open. If you decide to send a contact request, this additional data is included in the request, but can only be viewed by the Sunnix team to answer you in the best possible way. They are not visible when reopening the configuration.

Retention period

Configurations are kept for 48 hours, then automatically deleted

Example

If you configure a 4 kWp system with a certain type of panels and add battery storage in the summary, Sunnix saves the configuration data but not the storage. If you send a contact request, the storage is included only in that single request

Contact requests for simulations or configurations

If you decide to be contacted for a simulation or configuration, we only ask for your email and the type of request (Detailed quote, Deepen the production, Information on additional options, or To be re-contacted). This data is only used to answer you in the best possible way. We never ask for name, surname, phone number, or other personal data.

How it works

  • Sunnix saves a snapshot of your simulation or configuration (with the reference to the simulation or configuration and any extras filled out in the summary)
  • The request goes to the Sunnix team
  • If an available partner company exists, the request is forwarded to them. In any case, your data is never shared with others without your consent.

Virtual System

When you register a Virtual System, Sunnix saves the necessary data to simulate your future system's production every day and send you the report via email. It is the only Sunnix feature where we collect personal data (email) directly from you.

Saved data

  • Email address (stored in encrypted form)
  • Geographic coordinates of the system (latitude and longitude)
  • Total system power (kWp) and number of panels
  • Characteristics of each pitch (orientation, tilt, power)
  • Energy price entered for savings calculation (€/kWh)
  • Daily simulation logs: date, estimated production (kWh), estimated savings (€), weather conditions used
  • Simulation start and end date, system status (active/deactivated)
Important: the email is kept encrypted with the AES-256-GCM algorithm. It is never visible in plaintext, not even internally. For technical comparisons, only a cryptographic hash (SHA-256) is used, which does not allow tracing back to the original address.

How it works

  • Enter your email and future system details in the registration form
  • Every morning at 08:00 AM Sunnix simulates the previous day's production using real weather data and PVGIS historical irradiation
  • Receive the email with estimated production, savings, hourly curve, and cumulative counter
  • You can unsubscribe at any time via the link provided in every received email

Retention period

The system data and encrypted email are kept for the entire duration of the subscription and deleted within 30 days of cancellation. The daily simulation logs are deleted within 7 days of the system's cancellation.

Example

You register a 6 kWp system facing South in Milan. Every morning at 12:00 PM Sunnix calculates yesterday's estimated production and sends you the report via email. If you unsubscribe via the link at the bottom of the email, your data is deleted within 30 days and the logs within 7 days.

Average values used in calculations

The costs estimated by Sunnix are based on average market values collected from public and private sources.

Here are all the average cost items on Sunnix

ItemUsed valueAverage range
Inverter (≤ 6 kW)150 €/kW120-180 €/kW
Inverter (≤ 20 kW)105 €/kW90-120 €/kW
Inverter (≤ 60 kW)67 €/kW50-85 €/kW
Inverter (≤ 250 kW)47 €/kW40-55 €/kW
Inverter (>250 kW)32 €/kW25-40 €/kW
Battery storage700€/kWh500-1000€/kWh
Installation + labor250€250-350€
Battery installation per kWh120€/kWh90-150€/kWh
Site mobilization300€200-400€
Electrical panel adjustment500€ (Only if requested)400-600€
Scaffolding250€/floor200-300€/floor
Currently, costs are calculated on average market values. We are working to make the algorithm increasingly precise and closer to real cases: in the future, estimates will also take into account more concrete factors beyond system values. Furthermore, it will be possible to customize average values to adapt them to your case.

Newsletter

You can subscribe to the newsletter from the homepage.

How it works

  • In that case, we only save your email, the subscription date, and your status (subscribed, unsubscribed)
  • It is used exclusively to send you updates about Sunnix
  • You can unsubscribe at any time using the link at the bottom of every email sent by Sunnix

Analytics and third-party data

To improve the site and user experience, Sunnix uses third-party services for analytics and email management. These services collect data anonymously and in aggregate, without ever saving personal information.

  • If you accept cookies, we use Google Analytics for anonymous site usage statistics
  • If you subscribe to the newsletter, the technical management of emails is entrusted to Mailchimp
  • In both cases, data passes to external platforms according to their security policies
  • For the Virtual System service, emails are sent via Twilio SendGrid, according to their security policies
  • For the Virtual System service, weather data is obtained from Open-Meteo (only geographic coordinates, no personal data)
  • For more information, consult the Sunnix privacy policy Privacy Policy

Sunnix Philosophy

Getting informed about solar energy must be a clear and stress-free experience. With Sunnix, you have free and accessible tools that allow you to run simulations, configurations, and calculations without having to leave your name, surname, email, phone number, etc.

It is like this with Sunnix, because:

  • We never ask for more data than necessary to provide you with the service
  • We never sell your data to third parties
  • We never use your data for targeted advertising
  • We never save data beyond the necessary time
Future site updates could lead to changes to this page, which however will not affect the core transparency concept of Sunnix. In that case, the 'Last updated' date at the top of the page will be updated.