If you make qualified energy-efficient improvements to your home after Jan. 1, 2023, you may qualify for a tax credit up to $3,200.
https://www.irs.gov/credits-deductions/energy-efficient-home-improvement-credit.
In addition to limits on the amount of credit you can claim for any particular equipment installation or home improvement, there are annual aggregate limits. The overall total limit for an efficiency tax credit in one year is $3,200.
https://www.energystar.gov/about/federal_tax_credits/central_air_conditioning.