This data contains the marginal emissions rates for individual load nodes on the wholesale grid. For a more detailed description of the data, how it is calculated, and what it means, please review 'https://www.pjm.com/-/media/etools/data-miner-2/marginal-emissions-prime...'. PJM provides this information to help further inform stakeholders and policy makers as to the real-time conditions of the system. Because of the various constraints involved, PJM cannot make any guarantees as to the accuracy of the information, and PJM does not support the use of this information by any party to demonstrate compliance with environmental mandates in any jurisdiction. This feed represents data frequently updated throughout the operating day. In the event of a technical issue that prevents data from being updated, PJM will work to resolve the issue but typically will not update the data to replace the missed intervals.