Grants to Rapidly Invest and Deploy Broadband Act of 2022 or the GRID Broadband Act of 2022 This bill establishes a program through which the National Telecommunications and Information Administration (NTIA) must award competitive, matching grants for constructing or otherwise expanding fiber optics communications infrastructure to support broadband expansion. Eligible grantees include electric grid operators, transmission owners or operators, and other electric utilities. In awarding the grants, the NTIA must prioritize recipients that, among other activities, monitor threats to and otherwise support the security of the electric grid.