Terms of Service

kilowatts.cc — Tesla Energy Optimizer
Last updated: 11 June 2026

1. Who provides this service

kilowatts.cc is operated by:

Rui Pires
Braga, Portugal
Email: [email protected]

"We", "us", and "our" refer to Rui Pires operating kilowatts.cc. "You" refers to the person using the service.

2. What kilowatts.cc does

kilowatts.cc is a software service that connects to your Tesla account via the Tesla Fleet API and automates energy decisions — such as scheduling vehicle charging during cheap electricity hours and managing Powerwall operating modes — based on dynamic day-ahead electricity tariffs and your preferences.

The service acts on your behalf using authorisation you grant via Tesla's official OAuth 2.0 flow. You can revoke that authorisation at any time.

3. Eligibility

You must be at least 18 years old and a legal resident of a country where the service is available. The service is currently offered to users in the European Union and European Economic Area. You must be the owner or authorised user of the Tesla vehicle or Powerwall you connect.

4. Account and access

5. Tesla integration

6. Pricing and billing

Free launch month

New users receive their first month of access free, with no payment method required and no automatic conversion to a paid plan. Near the end of the free month, you will receive an email inviting you to subscribe. If you do not subscribe, your account will become inactive (automations will stop) and your data will be retained for 30 days before deletion.

Paid subscription

After the free month, the service costs €3/month or €30/year, billed via Stripe. Prices include applicable VAT where required.

Credits

The base subscription includes 150 credits per month (1 credit = €0.01). Credits are used to pay for Tesla API calls at cost plus a small buffer. The credit menu and costs are shown on the pricing page. Additional credits are available as top-up packs (€2 = 200 credits). Credits expire at the end of each billing month and do not roll over.

Refunds

We do not offer refunds for partial billing periods. If you cancel, your subscription remains active until the end of the period you have paid for. If a technical fault on our side prevents the service from functioning for more than 48 consecutive hours, contact us and we will issue a prorated credit.

7. Acceptable use

You agree not to:

8. Service availability and reliability

kilowatts.cc is provided on a best-effort basis. During the free beta period, the service runs on home-server infrastructure and may experience downtime due to power or internet outages. We will disclose any extended outages promptly by email.

We do not guarantee that automations will fire at an exact moment, or that any particular charging or Powerwall outcome will be achieved. Factors outside our control — including Tesla API availability, your vehicle's connectivity, and electricity grid conditions — affect outcomes.

The service does not guarantee any reduction in electricity costs. Results depend on your tariff, usage patterns, and local conditions.

9. Limitation of liability

To the maximum extent permitted by applicable law:

Nothing in these terms limits liability for death or personal injury caused by negligence, or for fraud.

10. Intellectual property

kilowatts.cc and its source code, design, and content are owned by Rui Pires. You may not copy, reproduce, or redistribute any part of the service without written permission.

11. Termination

You may close your account at any time from the account settings page. We may terminate or suspend your account immediately if you breach these terms. On termination, your Tesla authorisation is revoked and your data is deleted per our Privacy Policy.

12. Changes to the service and these terms

We may update these terms from time to time. We will notify you by email at least 14 days before material changes take effect. Continued use of the service after the effective date constitutes acceptance. If you do not accept the new terms, you may close your account before the effective date.

13. Governing law and disputes

These terms are governed by the laws of Portugal. Any dispute that cannot be resolved amicably will be subject to the exclusive jurisdiction of the courts of Braga, Portugal.

EU consumers may also use the European Commission's Online Dispute Resolution platform: https://ec.europa.eu/consumers/odr

14. Contact

For any question about these terms: [email protected]