Northern Illinois University has completed eleven phases of guaranteed performance contracts with Energy Systems Group since the year 2000. Based on 1995 energy and water consumption and the ESG analysis, NIU has saved:
42.3% of electricity
23.0% of natural gas
34.84% metric ton of CO2 emissions
37,972 kgal of water
NIU has been able to achieve these reductions by making upgrades through performance contracts with its partner Energy Systems Group. These performance contracts were enabled with the aid of grants from the Department of Energy and the Illinois Department of Commerce and Equal Opportunity.