🔒 Data Protection & Transparency

Privacy Policy & Cookie Disclosure

Last Updated: November 7, 2026 • Effective for all visitors and users of prosolar.app

1. Introduction & Scope

Welcome to ProjectSolar (https://prosolar.app). We respect your privacy and are committed to protecting any personal information you share with us while using our solar photovoltaic (PV) sizing calculator, visual Single-Line Diagram (SLD) builder, equipment catalog, and engineering guides.

This Privacy Policy explains what information is processed when you visit our website, how client-side engineering calculations work in your browser, how third-party advertising and analytics partners (including Google AdSense and Google Analytics) use cookies, and your rights under applicable data privacy laws, including the Philippine Data Privacy Act of 2012 (Republic Act No. 10173), the EU General Data Protection Regulation (GDPR), and the California Consumer Privacy Act (CCPA).

2. Client-Side Solar Calculations & Browser LocalStorage

By design, ProjectSolar performs all solar PV sizing, battery storage autonomy, wire gauge, breaker rating, and 25-year financial payback calculations locally inside your web browser.

  • Calculator Inputs: The monthly kilowatt-hour (kWh) figures, electricity bill amounts, tariff rates, and equipment parameters you adjust on the calculator or visual builder are processed on your device and are not automatically transmitted to our servers.
  • LocalStorage Preferences: We use your browser's local storage (e.g., solar_theme and saved workspace configurations) solely to remember your dark/light theme preference and restore your active solar design between sessions. You can clear this data at any time through your browser settings or by clicking "Reset to Defaults" in the calculator.

3. Information You Voluntarily Provide (Quotation & Lead Forms)

If you choose to request an official turnkey installation quotation, site survey, Proposal PDF, or engineering consultation via our inquiry forms on calculator.html, products.html, or services.html, we collect the details you explicitly submit:

  • Full Name
  • Mobile / Viber / WhatsApp Phone Number
  • Email Address
  • City / Province / Project Location and Roof Surface Type
  • Your selected solar system sizing specifications or equipment Bill of Materials (BOM)

How We Use Inquiry Data: Information submitted through quotation forms is used exclusively by our licensed electrical engineering team to prepare your requested solar proposal, conduct preliminary roof and utility interconnection assessments, and communicate with you regarding your project. We never sell, rent, or trade your personal contact details to third-party telemarketers or data brokers.

4. Google AdSense & Third-Party Advertising Cookies

We use Google AdSense to display advertisements on select informational and tool pages of ProjectSolar to help keep our engineering calculators and educational resources free for the public.

  • Third-Party Vendors & Cookies: Third-party vendors, including Google, use cookies (such as the Google DoubleClick / DART cookie) to serve ads based on a user's prior visits to this website or other websites on the internet.
  • Personalized Advertising: Google's use of advertising cookies enables it and its partners to serve advertisements to our users based on their visit to prosolar.app and/or other sites on the Internet.
  • How to Opt Out of Personalized Ads: Users may opt out of personalized advertising at any time by visiting Google Ads Settings. Alternatively, you can opt out of a third-party vendor's use of cookies for personalized advertising by visiting www.aboutads.info/choices or the Network Advertising Initiative Opt-Out Page.

5. Google Analytics & Log Files

We use Google Analytics 4 (Measurement ID: G-MC599H1QS0) to understand aggregate website traffic, page performance, and how visitors interact with our solar engineering guides and tools.

  • Google Analytics collects anonymized telemetry such as browser type, device category, approximate geographic region (country/city level), referring pages, and time spent on pages.
  • You can prevent your data from being used by Google Analytics by installing the Google Analytics Opt-out Browser Add-on.
  • Like standard web hosting providers, our content delivery network records basic server log entries (IP address, request timestamp, user-agent string, and HTTP status) strictly for security monitoring, DDoS mitigation, and debugging.

6. Data Security & Retention

All traffic to and from prosolar.app is encrypted using Transport Layer Security (HTTPS/TLS). Project inquiry records submitted through our engineering quotation forms are retained only as long as necessary to fulfill your quotation request, support active engineering engagements, or comply with statutory record-keeping requirements.

7. Your Data Privacy Rights

Depending on your jurisdiction (including under the Philippine Data Privacy Act of 2012, GDPR, and CCPA), you have the right to:

  • Request access to any personal information you have submitted to us via our quotation forms;
  • Request correction or deletion of your personal contact details from our inquiry records;
  • Withdraw consent for project follow-up communications at any time;
  • Manage or disable cookies directly through your web browser settings.

8. Children's Privacy

ProjectSolar is an electrical engineering and financial sizing resource intended for homeowners, business owners, students, and solar professionals. We do not knowingly collect personal information from children under the age of 16.

9. Contact Us Regarding Privacy

If you have any questions about this Privacy Policy, wish to exercise your data privacy rights, or want to request deletion of a submitted quotation inquiry, please contact our Data Protection & Engineering Desk: