The Grid Reliability Protection Act aims to ensure the reliability and stability of New Jersey's electrical grid by prohibiting State agencies from mandating the retirement or decommissioning of electric generation facilities under specific conditions. According to the bill, a State agency cannot compel the shutdown of a covered facility unless it receives written certification from PJM Interconnection that the deactivation will not adversely affect regional grid reliability, capacity adequacy, or energy market prices. Additionally, the Board of Public Utilities must conduct a public rate impact analysis confirming that the deactivation will not significantly increase costs for ratepayers.

The bill also allows for exceptions in cases where the continued operation of a facility poses an immediate threat to public health or safety due to structural damage, mechanical failure, or hazardous conditions. Furthermore, it mandates that at least 12 months prior to any proposed deactivation, the facility's owner or operator must provide public notice and file a letter of intent with the Board, including necessary certifications and analyses. This legislation reflects the Legislature's commitment to maintaining a reliable energy supply while addressing the potential risks associated with premature facility closures.