Solar Tax Credit

I constructed a steel frame structure to basically install solar panels to generate electricity for home consumption.   

1.  Can I claim tax rebate for the supporting structure?  As I started my PV project on October 2023, I bought all the materials and equipment in 2023, the final approval by City and Utility company may finished in January 2024. 

2.)  Can I file for the solar tax credit for Tax year 2023?

Thanks