You can enter them in the Deductions & Credits section:
- Open your return, if you don't already have it open.
- In TurboTax, search for energy improvements. (Do not search for energy credit, as this will take you to the wrong place.)
- Click the Jump to link in the search results.
- At the bottom of the Energy-Saving Home Improvements screen, answer Yes and continue. Follow the on-screen instructions.
Please note that federal tax credits for some energy-saving home improvements are still up in the air as of this writing. Read more here.
https://ttlc.intuit.com/replies/4793870