Roeslein Alternative Energy Case Study: Maximizing Biogas Value Through Continuous Monitoring

Executive Summary

Overview

Roeslein Alternative Energy, a major U.S. RNG producer, implemented Qube's continuous monitoring system to optimize their biogas capture from covered lagoon digesters.

Key Challenges

• Farm-based biogas plants typically experience 4.8% methane leakage

• RNG commands a premium price (15-20x above conventional gas)

• Traditional inspection methods are inefficient at detecting leaks promptly

• Significant revenue loss from undetected leaks

Solution Implementation

• Deployed six Qube monitoring devices around each covered lagoon

• Utilized automated software with historical wind data for optimal placement

• Implemented digital grid system with 30 source points per lagoon

• Established automated leak alarm notifications system

Key Results

1. Leak Pattern Discovery:

   • 5% of detected leaks accounted for 55% of total emissions over 9 months

   • Leaks occurred at irregular intervals and varying emission rates

2. Critical Incident Example:

   • System detected a significant midnight leak in August

   • Quick response enabled next-day repair of a 3-inch tear

   • Prevented potential revenue loss of $200,000 (if left undetected for a week)

3. Operational Improvements:

   • Reduced time spent on manual inspections

   • Improved response time for leak detection and repair

   • Enhanced accuracy in leak location identification

This implementation demonstrated the significant value of continuous monitoring in maximizing biogas capture and preventing revenue loss in RNG operations.