513 

 

 

Facility-Wide Lighting Upgrades for Improved Efficiencies;  

 

Mechanical Systems Conservation Upgrades (HVAC); 

 

Heater Systems Controls Upgrades; 

 

Installation of High Efficiency Turbo Blowers for Aeration; 

 

Plant Water Systems Improvements; and 

 

Biogas Cogeneration Facility for Electricity and Heat Production 

UOSA has also implemented other programs to increase equipment reliability and energy efficiency. One 
such program is the oil lubrication consolidation program. One of the goals of this program is to convert 
most of the oil lubricants to synthetic oils, which will reduce energy consumption due to their lower 
friction.  A greater focus on precision and proactive maintenance techniques (for example alignment), 
will also decrease equipment energy consumption.  

UOSA’s anaerobic digestion process produces biogas at a rate that averages approximately 200 scfm. For 
years the biogas (60% methane) was used to fire boilers that produced steam that was used to heat the 
digester feed as well providing building heat. In 2013 UOSA installed a combined heat and power 
cogeneration unit (CHPCU) to generate electricity and recover heat for digester heating. The CHPCU 
consists of a GE Jenbacher ICE, cogeneration unit with a maximum rated heat input capacity of 7.838 
MMBtu/hr and a maximum rated output of 1175 BHP (848 KW).  

The CHPCU has been operating continuously since start-up with a greater than 90% up time. The CHPCU 
has produced 17% of the site’s energy load and produced 14.3 million kilowatt hours of energy. This 
energy was produced using renewable resources, digester biogas, and has reduced electrical costs since 
start-up. CO2 equiv emissions have been reduced by 15,010 tons. Additionally, UOSA uses a high lime, 
high pH process to remove phosphorous from its reclaimed water. The CHPCU combustion gases (CO2) 
are captured and used as an acid to neutralize the pH of the reclaimed water before discharge, thereby 
further reducing greenhouse gas emissions into the environment while also reducing costs for 
purchased CO2 by approximately $500,000 per year. 

  

ORGANIZATIONAL CULTURE 

 

Proactive leadership that engages in both internal organizational and broader external 
community priorities  

 

Establishes a participatory, collaborative organization dedicated to continual learning, 
improvement, and innovation   

 

Workforce and leadership development program in place to assure recruitment, retention, and 
competency of utility staff relative to a Utility of the Future business model. Development 
program includes a leadership and management skills training program that provides both 
formal and informal leadership opportunities for employees  

 

Employee “in-reach” program established to share work experiences and ensure greater 
understanding of the utility’s key strategy relative to the Utility of the Future business model 

 

Innovation initiatives adopted that encourage risk-taking, and that are adequately funded and 
staffed   

UOSA has establishes an integrated and well-coordinated Mission Support Team (MST) that is made up 
of members from Executive Management, and Directors from Finance, Treatment Process, Operations &