The credit is only available for your primary home.
https://www.irs.gov/instructions/i5695
You may be able to take the credits if you made energy saving improvements to your home located in the United States in 2022.
Home.
A home is where you lived in 2022 and can include a house, houseboat, mobile home, cooperative apartment, condominium, and a manufactured home that conforms to Federal Manufactured Home Construction and Safety Standards.
You must reduce the basis of your home by the amount of any credit allowed.
Main home.
Your main home is generally the home where you live most of the time. A temporary absence due to special circumstances, such as illness, education, business, military service, or vacation, won't change your main home.
