IAC Assessments

Tacoma Wastewater Treatment Plant

Energy Analysts take notes during a tour of the facility
The OSU IAC team identified notable cost savings in the following systems:
  • Natural gas production
  • Sludge heat exchangers
  • Yard water pump system
  • Odor control ventilation



Annual Identified Cost Savings

<1 Year


Overall Payback Period



Recommended Opportunities


Deschutes Brewery

The OSU IAC team identified notable cost savings in the following systems:
  • CO2 recovery
  • Rinse nozzles
  • Blowers
  • Ventilation



Total Identified Cost Savings

0.6 Years


Overall Payback Period



kWh Saved Annually


Frito-Lay (Pepsico)

The OSU IAC team identified notable cost savings in the following systems:
  • Suspended solids
  • Natural gas systems



Total Identified Cost Savings



Natural Gas MMBtus Saved Annually



Recommended Opportunities




IAC Nationally

As of July 2018, the national IAC program had conducted more than 18,000 assessments with over 130,000 associated recommendations, saving U.S. companies more than $2.4 billion through efficiency and productivity improvements.

The Oregon State University EEC/IAC has recommended more than $500 million in annual cost savings to over 700 manufacturers, forty-five percent of recommendations have been implemented, equaling $225 million in savings to manufacturers. The companies that implement our recommendations not only save money, but also help reduce pollution, 625 tons of CO2 a year are saved per facility on average.


Who Wins?

  • Industry

    Facilities who receive an assessment and implement recommendations:

    • improve process efficiency
    • reduce energy costs and waste; average energy savings are $20,000 annually and non energy savings are $98,000 annually
    • demonstrate their commitment to sustainability
  • Participating University Faculty

    Through the IACs, universities:

    • build valuable local industry relationships to maintain a practical focus in their engineering curriculum.

    • gain an edge in attracting and retaining top undergraduate and graduate engineering students.

  • Participating Students

    The next generation of energy-savvy engineers is being prepared in today's IAC program. Each year, 150 students participate nationally, gaining valuable hands-on experience that can jump-start their engineering careers:

    • collecting data on audits, making recommendations and preparing reports
    • build professional relationships with local industry
    • understand key industrial operations, systems, and processes
    • receive in-depth energy efficiency training from faculty and student mentors
  • U.S. Taxpayers

    The Department of Energy's Office of Industrial Technologies provides financial and technical support to the IACs. The nation's economy benefits from more competitive small and medium-sized manufacturers--- a sector that accounts for over 50 percent of U.S. manufacturing employment. Other returns include:

    • enhanced energy security
    • environmental benefits from decreased energy and resource use
    • highly trained efficiency professionals


The primary objective of the IAC is to identify and evaluate opportunities for increased productivity, energy conservation and waste minimization through visits to industrial sites.