The Federal Energy Regulatory Commission (Commission) approves proposed Reliability Standard PRC-024-4 (Frequency and Voltage Protection Settings for Synchronous Generators, Type 1 and Type 2 Wind Resources, and Synchronous Condensers), Reliability Standard PRC-029-1 (Frequency. The Federal Energy Regulatory Commission (Commission) approves proposed Reliability Standard PRC-024-4 (Frequency and Voltage Protection Settings for Synchronous Generators, Type 1 and Type 2 Wind Resources, and Synchronous Condensers), Reliability Standard PRC-029-1 (Frequency. There is a patchwork of federal, state, and local policies and regulations pertaining to renewable energy systems that impact your project development. It is important to understand the policy landscape early in your development process. State Solar Carve-Out Programs - Learn about which states. This article within the National Electrical Code is the definitive standard for the safe installation of solar photovoltaic (PV) systems. It governs everything from circuit requirements and voltage calculations to crucial safety mechanisms like the rapid shutdown system (RSS) and ground-fault. To set protection such that generating resource(s) remain connected during defined frequency and voltage excursions in support of the Bulk Electric System (BES). SolarEdge inverters with CPU version 2. The standards are the latest in the Commission's series of grid reliability orders pertaining to what are called “inverter-based resources.