Terms of Use and Disclaimer

Using the tools

The tools are free to use.

Not allowed

• Interfering with the operation of the site
• Copying the content or code to other sites without permission

Disclaimer

Figures are estimates from JMA climate normals and published rules and averages. They are not quotes and do not guarantee output or savings. Rules, tariffs and subsidies change. Before deciding, get site surveys and quotes from installers and check official information from your utility and local government, and consult professionals if needed. The operator is not liable for any loss arising from use of the site.

Effective: 2026-11-01