The Energy Saving Trust provides a microsite that gives information to the public about techniques and technologies they can use to implement renewable energy in their own home.
Previous versions of this microsite used static files which the client could not edit. This resulted in numerous requests to edit content and images and often led to delays in new copy appearing on the site.
To combat this I re-implemented the site in Drupal 8. The site structure, design and existing content were kept identical but the new site had an admin area where the client could edit the copy without requiring a developer. The admin enhancements in Drupal 8 even allow the client to edit website content in-place without even needing to switch to the admin area.