Best Practices for Cogeneration System Operation

As more and more water resource recovery facilities (WRRFs) design and operate new biogas utilization systems it becomes crucial to share the best operating practices for the cogeneration and gas treatment systems. The intent of implementing best operating practices is to (1) maximize the electrical and natural gas energy cost savings via increased engine output per unit of gas and engine uptime, (2) minimize operations and maintenance expenses that erode net energy cost savings, and (3) reduce biogas flaring.The objectives of this study are to:• Identify key maintenance activities that maximize engine availability and electrical production• Suggest operating strategies to maximize electrical savings• Share plant operator’s perspective on key aspects of system design to help provide moreoperator-friendly designs• Consider staffing and training practices that contribute to operating success