EPA Proposed Rule 50-Hour Provision

In 2013, the EPA finalized a rule that changed the stationary engine NESHAP and NSPS requirements regarding limitations on the hours of operation of emergency engines. Before the 2013 amendments, emergency engines were restricted to 100 hours of operation per year for maintenance and testing, of which 15 could be used for emergency demand response. These provisions were often called the “emergency demand response” or “100-hour” provisions.

The 2013 rule continued to restrict emergency engines to a collective 100 hours of operation per year for maintenance, testing, or emergency demand response but removed the 15-hour limit for emergency demand response. The 2013 rule specified that emergency engines could operate for up to 50 hours per year in non-emergency situations (counted as part of the 100 hours) and that the 50 hours could be used to supply power as part of a financial arrangement with another entity (ex. Demand Response).

The EPA is evaluating the need for this provision, including assessing how often and under what circumstances stakeholders use the 50-hour provision. According to the EPA, reported information in the last few years shows little need for engines to operate for the purpose specified in the 50-hour provision.

The public’s participation and feedback are vital to the decision-making process, and all stakeholders are encouraged to share their insights

From Danny Chisholm, Motor and Generator Institute

For more info see full article: https://www.mgiepss.com/blog/epa-proposed-rule-on-50-hour-emergency-engine-provision-and-electronic-reporting/