I got a $9,475 installation of a home energy credit eligible heat pump. Why would my home energy credit come out to $0 on TurboTax?

I can't say for sure with such limited information.  Energy tax credits aren’t refundable tax credits. This means that you can reduce your total tax to zero if you have a large enough credit. But you can’t get any excess credit amount as a payment to you on your tax return if you have more energy credit than your total tax.  If you installed other 

I suggest you revisit the energy credit section and review your entries.  Open or continue your return, if not already open.  

• Select the Deductions & Credits tab.
• Find the Your Home section.
• Select the Start/Revisit button for Home Energy Credits.
• On the Energy-Saving Home Improvements screen, answer Yes and Continue. Follow the instructions and review your entries.

For information on what is eligible for the credit click on the following link: IRS Instructions for Form 5695