Proposing a constitutional amendment authorizing the legislature to exempt from ad valorem taxation the amount of the appraised value of real property that arises from the installation or construction on the property of a generator that is primarily for the production and distribution of energy for on-site use.

HJR 157 proposes a constitutional amendment to exempt property taxes on the increased value of real estate resulting from on-site energy generators. Specifically, it would allow Texas property owners with generators built primarily for producing and distributing energy for their own use (like solar arrays or backup power systems) to exclude that added property value from local property tax assessments. This change would require voter approval in the November 2025 election and would be implemented through an amendment to Article VIII of the Texas Constitution. The exemption directly affects property owners who install such energy generators for self-use, potentially lowering their property tax burden.