197 

 

 

Recovery of digester gas in a combined heat and power (CHP) system, and boilers in place (for 
process and building heating)   

 

Conversion of digester biogas to electricity and heat, and/or transportation fuel Yes   

 

Solar panels, wind turbines, heat recovery, in conduit hydro, and/or hydroelectric power 
generation systems installed  

Formal Resource Recovery (R2) program in place to evaluate and accept organics.   

Receiving stations for accepting high-strength organic wastes by truck, fed to digesters.  

In addition to liquid wastes, have capability to accept solid food waste for digestion.  

Board of Directors includes Sustainability/Energy Committee.  

EBMUD Strategic Plan includes goals for renewable energy generation.  

Performance Measures & Results 

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Renewable energy generation: Generate 138% of WRRF demand, export surplus  

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Annual energy savings: On-site generation saves $2.8M annually  

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Annual energy revenue: Surplus exports earn $1M annually  

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Evaluation of generation options: Evaluations conducted in 2005, 2009, 2012, 2016  

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Solar power generation: Approximately 1.2 MW of PV at District facilities  

  

NUTRIENT & MATERIALS RECOVERY  

 

Materials recovery strategy established and communicated with utility employees  

 

Adequate staffing to support materials recovery program (contractual or in-house)  

 

Market assessment conducted for recovered materials  

 

Contracts or agreements in place for materials provision  

 

Ongoing exploration and evaluation of materials recovery opportunities  

Recover nitrogen and phosphorus through land application of biosolids generated.  

Completed engineering evaluation of recovering nutrients (as fertilizer) from dewatering centrate 
(sidestream), using innovative technologies such as: Ostara, AirprexTM, and ammonia stripping.   

Leading a regional study to pilot testing new cost-effective and environmentally-sustainable sidestream 
nutrient removal and recovery technologies, including anammox processes and Coupled Aerobic-anoxic 
Nitrous Decomposition Operation (CANDO).   

Initiating a master plan for nutrient removal and recovery for the entire plant.  

Comprehensive materials recycling program including paper, metals, pallets, green waste, and 
electronics.  

Performance Measures & Results 

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Assess type and percent of nutrients recoverable versus available: Conducting nutrient sampling 
and quantifying recoverable nutrients