HQ U.S. Air Force Academy

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US Air Force Academy Energy

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Source Energy & Fleet Fuel Distribution

FY 12 Facility Energy Cost Data

Electric 80,369 MWh $ 3.9MNatural 510,801 MBtu $ 2.3MPropane 89,768 Gal $ 0.1MPotable Water 485 MGal $ 1.8MNon-Potable Water532 MGal $ 0.2M

TOTAL COST FY10$8.3M

Bus Fleet Data FY12

Miles Driven 196,836Gallons of Fuel 41,402

TOTAL COST FY10 $132.5K

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USAFA Energy Initiatives1. Ground Source Heat Pumps at Batting

Cageso Installed 2006

2. Photovoltaic Roofing Vandenberg Hallo ~180 kW – Operational East Towero ~420 kW – Operational West Tower

3. Ground Source Heat Pumps at Entry Control Points C-1 and C-2o Installed 2004

4. Maxicon Irrigation Control Systemo Installed 2010

5. Methane Recovery Sludge Reheat at Waste Water Treatment Planto Installed 1998

6. 30 kW Microturbine Burning Digester Gaso Installed 2004

7. 6MW Solar Array Funded with ARRA fundso Fully operational June 2011

8. Ground Source Heat Pumps at Visitor Pass and Identification o Installed in 2003

9. Ground Source Heat Pumps at South Gateo Installed in 2003

USAFA Energy Initiatives

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- Complete

Conservation, Innovation, EducationThe Air Force Net Zero Installation

Demonstration Projects 16 kW Concentrated PV10

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6 MW peak power (~5.2 AC) 18,888 modules 30 drive motors, 4,800 piers

12,500 MWh in first year of operation Expected 11,600 MWh

~15% of USAFA’s load

~$802K saved (Jul 11 – Jun 12)

Third-party owned Sun Power Corporation Sun Power T0 system

Power directly to USAFA south

substation – doesn’t leave USAFA

USAFA Solar Array

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FY12 RenewableEnergy Summary

Renewable Energy Generation Solar Array (Oct 11 – Aug 12)

11,465,280 kWh Vandenberg Hall (Oct 11 – Aug 12)

337,445 kWh Total Savings

15.5% of total electric use

Renewable Energy Purchases Wind: 600,000 kWh Hydro: 9,592,072 kWh

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Net Zero

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FY11 NZEI progress = 2.5% complete Conventional electricity and natural gas account for 95%

of energy use and cost in FY12 Total FY12 energy expenditure = $6.3 million

FY12 Utility Expenditures

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Net Zero Potential Composition

Final NREL net-zero energy report delivered Jan 12 Potential energy savings initiatives account for 19% Renewable energy required for the remaining 81% to achieve net-zero

Efficiency, 18.8%PV -Ground

Mount, 4.5%PV -Roof Mount,

1.7%SVP, 1.3%

Micro Hydro, 0.2%

Small Wind, 0.1%

GSHP, 11.2%

SHW, 0.3%

Biomass CHP, 60.8%

Renewable Fleet, 0.6%

Non-renewable Fleet, 1.2%

2020 Energy Mix

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Developing new courses/revising existing

Engr 495: Sustainability & Green Engineering

ECE 495: Green Commercial Power Systems

Civ Engr 464: Architectural Design (Sustainable design)

Civ Engr 480/485: Const Mgt (Env Req’s & Sustainability)

Mech Engr 468: Renewable Energy

Chem 100/200: Applications of Chemistry (Energy as central theme)

Integrating Energy in the Curriculum – The Courses

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Energy Curriculum

Incorporating energy & sustainability in facility design Alternative energy sources (wind turbines/PVs) Passive solar heating (heat pump pre-heat, solar

hot water, on-demand water heater) Active solar (PV arrays) Lighting (solar tubes) Energy conservation

Insulated forms & green roof Water conservation

Waterless urinals Solar Micro-grid (DFEC/DFCE)

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www.inhabitat.com www.inhabitat.com

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Energy Energy basics Sustainable/renewable Fossil Fuels Nuclear Wind Solar/Photovoltaic Wave/tide Biomass & Geothermal

How much coal is required to produce the same amount of energy as 10 kg of

235U

How much land is required to make up

25% of the COS energy demand using 2MW wind

turbines

How much more farmland would

America need to farm to grow corn for

enough ethanol to completely replace the gasoline used in all of

our cars?

12 green engineering principles Cradle-to-cradle

Intro to USGBC/LEED Project Site Factors System Management Energy Impacts Public Interaction

Sustainability & the developing world Water Power Infrastructure

Energy Curriculum

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Energy Research

Chemistry Research Center Ionic liquids for heat transfer Hydrogen generation/storage

Solar Power Heat Transfer

N N+

CH3

CH3CH3

(CF3SO2)2N-

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Life Sciences Research CenterAlgae cultivation for biofuelsBiofuel extraction & use in aviation

Algae Biofuel

Laser & Optics Research Center

“Black silicon” for more efficient solar cells

Civil & Environmental Engr Energy foundations with ground source heat pumps

Aeronautical Engr Wave power from

the ocean

Electrical & Computer Engr 7KW solar Green Energy lab Power generation, storage,

and conversion

Engineering Mechanics Wind energy to power sensors and

transmitters on bridges & remote sites

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