This legislation seeks to protect the reliability of the electric grid by preempting State climate mandates that could obstruct energy infrastructure planning or inflate electricity costs. Its primary purpose is to prevent States, political subdivisions, or regulatory authorities from establishing or enforcing requirements for electricity generation, retail sales, or procurement to include a specified percentage or quantity of electricity from renewable, zero-emission, or carbon-free energy resources . The bill also prohibits conditioning participation in electricity markets, cost recovery, or utility regulation on compliance with such mandates. Any State law or requirement found to be inconsistent with these provisions is explicitly preempted and shall have no force or effect . However, the legislation includes a savings provision, clarifying that it does not prohibit a State from owning or operating generation facilities that utilize renewable, zero-emission, or carbon-free energy resources.