Residential energy property costs. Residential energy
property costs are costs of new qualified energy property that is
installed on or in connection with your main home that you
owned during 2019 located in the United States. Include any
labor costs properly allocable to the onsite preparation,
assembly, or original installation of the energy property.
Qualified residential energy property is any of the following

follow this link for all instructions: https://www.irs.gov/pub/irs-pdf/i5695.pdf