Privacy Policy

Last updated: November 29, 2025

Denkiya ("Denkiya," "we," "us," or "our") respects your privacy. This Privacy Policy explains how we collect, use, and protect information when you use our websites, applications, and related services (collectively, the "Service").

1. Information We Collect

1.1 Information You Provide

We collect information you choose to share with us, which may include:

  • Account information such as your name, email address, and password;
  • Home, appliance, and vehicle information (for example, square footage, number of occupants, types of appliances or vehicles, usage patterns);
  • Utility data you add manually or via uploads (e.g., monthly bills, usage, and costs);
  • Any messages or feedback you send us.

1.2 Automatically Collected Data

When you use the Service, we may automatically collect:

  • Device and browser information (such as IP address, browser type, operating system);
  • Usage data (such as pages viewed, features used, timestamps, and interactions with the Service);
  • Approximate location information derived from your IP address or geolocation data you choose to provide (for example, to look up region-specific energy rates).

1.3 Cookies & Similar Technologies

We may use cookies and similar technologies to remember your preferences, keep you signed in, analyze how the Service is used, and improve performance. You can typically manage cookies through your browser settings. If you disable cookies, some features of the Service may not function properly.

2. How We Use Your Information

We use information we collect to:

  • Provide, operate, and improve the Service;
  • Generate personalized cost and savings estimates based on your inputs and region;
  • Help you understand the potential benefits and tradeoffs of electrification and energy upgrades;
  • Communicate with you about updates, new features, and support;
  • Monitor usage, detect abuse, and maintain the security and reliability of the Service;
  • Conduct research and analytics (often in aggregated or anonymized form) to improve our tools and methodology, such as those described in our methodology documentation.

3. How We Share Information

We do not sell your personal information. We may share information as follows:

  • Service Providers: With trusted vendors who help us operate the Service (for example, hosting, analytics, email delivery), subject to appropriate confidentiality and security obligations;
  • Legal & Safety: When required by law or in response to valid legal processes, or when we believe it is necessary to protect the rights, property, or safety of Denkiya, our users, or others;
  • Business Transfers: In connection with a merger, acquisition, financing, or sale of all or part of our business, subject to reasonable efforts to continue to protect your information.

We may share aggregated or anonymized data that does not reasonably identify you, for example to help illustrate energy usage patterns or electrification outcomes across regions.

4. Data Retention

We retain your information for as long as reasonably necessary to provide the Service, comply with our legal obligations, resolve disputes, and enforce our agreements. You may request deletion of your account or certain data as described below.

5. Your Choices & Rights

Depending on your location, you may have certain rights regarding your personal information, such as the right to:

  • Access or request a copy of the personal data we hold;
  • Request correction of inaccurate or incomplete information;
  • Request deletion of some or all of your personal information, subject to legal or operational requirements;
  • Object to or restrict certain types of data processing, or withdraw consent where processing is based on consent;
  • Opt out of marketing emails by using the "unsubscribe" link in our messages.

To exercise these rights, please contact us at support@denkiya.co. We may need to verify your identity before processing certain requests.

6. Data Security

We use reasonable technical and organizational measures to help protect your information from unauthorized access, loss, or misuse. However, no system can be completely secure, and we cannot guarantee absolute security. Please use strong, unique passwords and take care when sharing sensitive information online.

7. Children's Privacy

The Service is not intended for use by children under 13, and we do not knowingly collect personal information from children under 13. If you believe that a child has provided us with personal information in violation of this policy, please contact us so we can take appropriate steps.

8. International Users

Denkiya currently focuses on U.S. addresses and energy data. If you access the Service from outside the United States, you understand that your information may be transferred to, stored in, and processed in the United States and other countries, where privacy and data protection laws may differ from those in your jurisdiction.

9. Changes to This Privacy Policy

We may update this Privacy Policy from time to time. When we do, we will revise the "Last updated" date at the top of this page. If changes are material, we may provide additional notice (such as by email or in-app notification). Your continued use of the Service after the effective date of an updated policy constitutes your acceptance of the changes.

10. Contact Us

If you have questions or concerns about this Privacy Policy or how we handle your information, please contact us at support@denkiya.co.