The public website
This edition is a static information website. It does not contain a newsletter signup, account registration, payment checkout, advertising tracker or audience-analytics script. Ordinary web-server requests may be logged for operating and securing the site, including request time, requested URL, response status and network information.
The calculators and worksheets
Tool inputs are processed in your browser. They are not submitted by the tool to the website or to a financing provider. The tools do not use local storage to preserve your inputs. A print or download action creates a document under your control.
Delivery and security
The domain uses Cloudflare for DNS and proxied delivery. Cloudflare may process network information for delivery and security. Its own policies describe its service processing. This site does not set a marketing-consent cookie or claim that a downloaded brief is confidential storage.
External sources
Links to the IEA, IRENA, ADB, World Bank, public repositories and the Internet Archive take you to independently operated websites. Their data practices apply when you visit them. Source links do not send the contents of your calculator or project brief.
Publication context
This notice describes the website edition reviewed in 2026. Public business contact information appears on the contact page. Do not enter passwords or highly sensitive information into a public project-brief demonstration.