Case Study: Arizona State University
Energy Savings Performance Contract
Power Purchase Agreement
Qualified Management Agreement
Professional Services Agreement
Master Strategic Alliance Agreement for Climate Neutrality
Since the beginning of our partnership, Ameresco’s responsibilities have included detailed facility and energy analyses, and the design and construction management of facility and infrastructure upgrades that have resulted in more than $8 million of annual savings at over 11 million square feet of University infrastructure. Through this partnership, ASU has achieved an annual cost savings of over $8 million, saving 98.5 gigawatt hours of electricity, 1.4 million therms of natural gas, significantly reducing its annual energy usage, and reducing its carbon footprint by over 77,247 metric tons of CO2 annually–equivalent to 23 percent of the University’s total carbon footprint.2 As part of a broader commitment of attaining institutional sustainability and a University-wide goal of zero net greenhouse gas emissions, in May 2013 ASU selected Ameresco as its Strategic Business Partner to become climate neutral by 2025 (2035, including transportation).
Energy and Greenhouse Gas Emissions Savings
metric tons of CO2 annually
Projects that have been successfully implemented throughout this partnership include, but are not limited to, the design and installation of an 8 MW combined heat and power facility; chiller replacement; cooling towers; boilers; steam distribution system upgrades; water treatment improvements; thermal storage modifications; building automation and control system installation; lighting and exist sign replacements; re-design of HVAC air handlers; motors; laboratory fume hood and supply air upgrades; outside air control measures; energy information system design and implementation; economic optimization dispatch model; and solar photovoltaic installations. The majority of this work was completed during regular school sessions in a very active university with minimal disruption to daily campus operations.
Ameresco has worked with the University to provide internships, and ultimately jobs, for ten engineers, finance personnel and construction managers. We support the ASU School of Engineering with guest lecturers and class project support, provide financial and manpower donations for events such as homecoming and ASU Foundation activities, and have developed a world class energy management and retro-commissioning team focused on the occupants’ comfrot and buildings’ energy consumption.
Energy Service Performance Contracts (ESPC)
To date, Ameresco has completed two energy service performance (ESPC) contracts. In addition to the over $8 million in annual energy savings, these ESPC contracts have yielded ASU tremendous benefits, including, but not limited to enabling replacement of equipment nearing or beyond its useful lifecycle, reducing deferred capital and maintenance burden, improving the reliability and performance of equipment and reducing the annual production of GHG emissions.