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The 2015 site Energy Utilization Index (EUI) is 124.9 kBTU/sf/yr. This is high compared to the national median for Transportation Terminals, which is 32.6 kBTU/sf/yr. The high electrical EUI is due to many potential reasons: » Inefficient lighting fixtures. A number of incandescent and T12 lamps were observed in the terminal. » Inefficient lighting design in some large areas, lighting limited areas of the space or structure. » Lack of an efficient control system for HVAC and lighting systems. » Improper set points and settings for temperature set points and equipment operation control. » HVAC equipment set to run continuously, regardless of demand. The 2015 site Energy Cost Intensity (ECI) is 2.4 $/sf/yr. 3.3.2 Electricity Electricity is metered and billed based on the meter readings. Eugene Airport has multiple meters throughout its property, but the terminal building has one main meter. 3.3.3 Natural Gas Natural gas is metered and billed based on the meter readings. The terminal has natural gas available, as the original building design used natural gas fired boilers and water heaters for the HVAC and plumbing systems. In addition, the restaurant located within the terminal building was found to consume natural gas. The amount of consumption was deemed minimal. 3.3.4 Water Water is provided by Eugene Water & Electric Board (EWEB). The total annual water usage cost in 2015 for the airport was $50,431. Many of the lavatories throughout the building still had 2.0 GPM aerators. It is recommended to replace these aerators with 0.5 gpm aerators. 3.4 HEATING, VENTILATION AND AIR CONDITIONING (HVAC) SYSTEMS The central HVAC chiller plant consist of three Trane model water-cooled chillers. Each chiller has a maximum capacity of 112 Tons of cooling, a flow of 210 GPM, and 90 KW electric input each. The plant pumping scheme is a primary secondary arrangement and it has three constant volume primary circulation pumps and two variable flow secondary pumps controlled by VFD which deliver chilled water to the building. It also consist of a plate & frame heat exchanger for a waterside economizer that provides chilled water during winter months. The Chilled Water Plant provides 44°F chilled water to all the air handling units and fan coil units that serve the whole terminal. The Fluid Cooler CT-1 & CT-2 provide condenser water supply to the chillers and it is also equipped and controlled with a VFD. The condenser water is delivered to the fluid cooler by two constant volume pumps and one variable volume pump. ASHRAE LEVEL 1 ENERGY AUDIT TERMINAL 14