Utah State University Logan Utah

Founded 1888 as a Land Grant Institution Host City – Logan, Utah (48,ooo+ population) ~ 15,000 Students (~ 28,700 students system-wide) 430 Acres of Maintained Grounds 75+ Major Buildings Utah State University – Logan Campus

4.5 MW Cogen (installed 2004) 50,000 #/hr. HRSG 300 kW Hydro 46 kV North and South Electrical Sub Stations ~ 18 Miles - 12,470 volt Distribution System 240,000 #/hr. Nominal Steam Capacity ~ 12 Miles - Steam Distribution System 5,200 Tons Central Plant Chilled Water Capacity ~ 5 Miles of Distribution Piping ~ 2.5 Miles of Walk-through Tunnels Utah State Utility Assets

1.2 MW Emergency Generator Culinary Water Production, Storage & Distribution Canal & Culinary Irrigation System Storm Water Refuse Collection Recycling & Surplus Operation Utah State Utility Assets

Procured Natural Gas ~ 545,000 $3,000,000 / yr. (2008 – 2012) Procured Electric (Logan Light & Power) *** Energy 34,844,000 $2.1 million / yr. (2008 – 2012) Energy Cost - 49% (2011 & 2012) Demand Cost - 51% (2011 & 2012) USU Produced Power ~ 55% USU Procured Power ~ 45% < 10% (WAPA / CRSP) < 5% Innovation Campus N. Logan) *** rate study currently underway by LL&P USU Energy Usage & Cost Profile

Natural Gas Strategies for Utah State University Transportation CNG busses provide efficient movement of people Reduces environmental impacts Transportation Master Planning Cogeneration (CHP) Produce and deliver 55% of USU’s electrical energy Provides ~ 40% of USU’s thermal heating requirements Future combined cycle or chilled water production? Energy Management Construct efficient buildings HVAC commissioning Install lighting retrofits Utilize alternate energy sources

Transportation Systems

Transportation Natural Gas Fired Busses Emits virtually no visible particulate matter (PM) CNG has 90% less particulate mass than diesel CNG produces less total greenhouse gas emissions than diesel At a $0.25 /gal fuel savings = 3 year payback on CNG busses CNG offers emission benefits over diesel/hybrids (1) Department of Energy’s National Clean Cities Program

Cogeneration (CHP) Combined heat & power

USU Cogen (commissioned in 2004) 4.5 MW NG fired Solar Turbine produces ~ 55% kWh Meets ~ 1/3 maximum kW demand Or, ~ 1/2 of average kW demand HRSG produces steam heat for much of main campus $14 M project including centralized chilled water ~ $1 M annual combined savings Vs. conventional iversity.pdf

USU Energy Management Strategies

Energy Management A managed energy program can reduce Energy Utilization by 30% to 35% USU estimates that 15% has already been achieved from prior energy projects Energy Utilization is measured and tracked as an index, or ratio of energy use over a measure of building area and time (EUI is normalized for growth) Energy Utilization Index (EUI) = MBTU (energy) / SQFT (area) / YR (time) Energy cost savings are treated as “avoided costs” due to non-uniform inflation and volatility in energy markets Avoided costs savings may not always be realized as a positive cash flow, but will measure the extent that budgets would have increased Some efficiency measures like lighting upgrades are static. Others require proactive management to be sustainable I.E. Commissioning, Education and Awareness, Building Scheduling

Energy Management Program Components Continuous Commissioning of HVAC Systems Metering & Data Analysis Energy Procurement Management & Oversight Provides Assistance and Consultation to USU Auxiliaries Capital Project Design Review New Facility Commissioning Campus–wide Education & Awareness Auditing & Facility Scheduling Energy Efficiency Projects Monitoring of Grant & Alternate Funding Environments Report on Accomplishments

Projected Avoided Cost and Expenses for Ongoing Building Commissioning Annual Expenses for USU Energy Management (Labor + 43% Benefits) 2 HVAC Technicians $ 115 k (one new HVAC Tech) 1 Energy Engineers $ 72 k (one new Energy Engineer) 1 Energy Auditor / Educator $ 50 k (one new position) 1 Energy Manager $ 93 k (internal and/or one new position) O&M, Material, & Equipment $ 100 k annually Total Expenses $ 430 k / Yr. Projected Energy Avoided Cost Savings $ 765 k / Yr. (Estimated at 15% of Average Variable Energy Costs) Net Avoided Cost Savings = $ 335 k / Yr. after Expenses ($ 500 k / Yr. at Higher Energy Procurement Costs)

Energy Management Accomplishments Cogeneration & HRSG Decommissioning Coal / NG Boiler Rebuilds LED Lighting Retrofits Centralized Chilled Water All New LEED Constructed Facilities Ongoing HVAC Commissioning Ongoing HVAC Controls Upgrades ~$200K Year Demand Side Management Strategies Initiating E.M. Support for Statewide System Campuses

2 Million Gallon Chilled Water Storage Tank – Inside Piping

Off Peak – On Peak Operation

Demand Savings Profile ~ 1 ~ $12,500 / Mo.

Exterior of Storage Tank

Below Grade - 2 Million Gallon Capacity 30’ Ht. x 115’ Diameter $2.5 Million 40+ Year Service Life $100,000 Yr. Est. Current kW Demand Current Estimated Saving Rate $50,000 - $75,000 Yr. Provides “firm Capacity” for 1 - 1,800 Ton Chiller ~ $1.25 Million Payback is well within expected economic service life Design & Performance Characteristics

Energy Efficiency = Environmental Sustainability

Questions & Answers