1) Who we are
HeliosROI (“we”, “us”, “our”) provides a solar PV return-on-investment calculator and related content at HeliosROI.com. This policy explains how we collect, use, and share information when you use our website.
Data controller: HeliosROI · contact: contact@HeliosROI.com.
2) Information we collect
Data you provide
- Contact details if you email us or submit a form (e.g., name, email, message).
- Calculator inputs (e.g., location, bill, system size). By default these are processed in your browser; we don’t store them on our servers unless explicitly stated.
Data collected automatically
- Device & usage: IP address, browser, OS, pages viewed, timestamps.
- Approximate location: obtained via IP geolocation to pre-fill calculator defaults.
- Cookies & similar: set by us and our partners (see below).
4) Analytics & third-party services
- Analytics (e.g., Google Analytics or self-hosted alternatives): to understand aggregate usage.
- IP geolocation (e.g., BigDataCloud): to pre-fill country and location-based defaults.
- Solar radiation APIs (e.g., PVGIS / NASA): to fetch irradiance estimates for your location.
These providers may process limited technical data (IP, user agent, coarse location) according to their policies.
5) How we use your information
- Provide, secure, and improve our calculator and content.
- Personalize defaults (e.g., local currency, electricity price ranges).
- Measure performance of pages and ads (in aggregate).
- Respond to your inquiries.
- Comply with legal obligations.
6) Legal bases (GDPR/EEA)
- Consent: for non-essential cookies/ads personalization.
- Legitimate interests: basic analytics, security, service improvement.
- Contract: when you request features we need to deliver.
- Legal obligation: record-keeping, compliance.
7) Your rights
If you are in the EEA/UK (and similar jurisdictions), you may have the right to access, correct, delete, restrict, or object to processing of your personal data, and to data portability. You can also withdraw consent at any time.
To exercise these rights, contact contact@HeliosROI.com. You may also lodge a complaint with your local supervisory authority.
8) Data retention & security
We keep personal data only as long as needed for the purposes above, or as required by law. We use reasonable safeguards to protect information, but no method is 100% secure.
9) International transfers
Our providers may process data in countries outside your own. Where required, we rely on appropriate safeguards (e.g., Standard Contractual Clauses).
10) Children’s privacy
Our site is not directed to children under 13 (or the age defined by local law). We do not knowingly collect personal data from children.
11) Changes to this policy
We may update this Privacy Policy from time to time. The “Last updated” date reflects the latest version.
12) Contact us
Email: contact@HeliosROI.com