1. Brownfields 2011 CleanSWEEP: A Decision & Design Tool for Alternative Energy Use in Site Remediation John Tunks CH2M HILL - Denver April 4, 2011

2. Acknowledgments Erica Becvar – AFCEE/TDV Doug Downey - CH2M Hill Concurrent Technologies Corporation Air Force Research Laboratory 2 of 17

3. Overview/Agenda Drivers Project Background Tool Overview and Functionality 3 of 17

4. Renewable Energy: Why should the AF care? The President has told us to… Executive Orders 13423 and 13514 It is a Policy of US EPA – OSWER “Principles for Greener Cleanup”, 2009 Potential to reduce long term ops costs Energy, labor, and chemicals are typically the largest cost components of remedial system O&M Reduce Green House Gas emissions DOE estimated that 1.37 lbs of CO2 are emitted into the air for each kWh of electricity generated in U.S. (but function of source of power) Accelerate RIP for remote locations 4 of 17

5. Setting Many AF remedies use small pumps and motors with low energy requirements over long periods Remote sites face challenges in getting reliable and inexpensive energy to power remedies Many systems do not require continuous operations These types of systems can be good candidates for “off-the-shelf” renewable energy systems 5 of 17 From: http://www.gcpsolar.com/sqflex.htm

6. Problem Statement Environmental specialists aren’t always trained or familiar with renewable energy technology/calculations There is a need to help ER RPMs make decisions on whether or not renewable energy is right for their system(s) 6 of 17

7. Solution Develop a simple, user-friendly tool that will help non-energy experts identify good candidate AF remediation systems for conversion to solar/wind power The US Air Force Tool for Evaluating Clean Solar and Wind Energy in Environmental Programs: CleanSWEEP 7 of 17

8. CleanSWEEP Objectives Simple enough to be used “out-of-the- box” with very little training Sophisticated enough to make go/no-go and simple design recommendations for small to mid-sized systems Appropriate as a screening tool for large and complex ($$$) systems 8 of 17

9. Tool Walk Through 9 of 17

10. Location/System Input Screen 10 of 17

11. Energy Input Screen 11 of 17

12. Output Screen 12 of 17

13. Tool Walk Through 13 of 17

14. Favorable Situations for Renewable Energy Use High Grid Power Price Remote Locations Regardless of Operating Time Favorable Wind or Solar Location Operating Time Over 15 Years Net metering in place 14 of 17

15. Unfavorable Situations for Renewable Energy Use Cheap Power on Grid Bad Wind and Solar Locations Operating Time < 15 yrs Unfriendly utility policies on net metering Lack of space for equipment 15 of 17

16. Questions? 16 of 17

17. Contact Erica Becvar (AFCEE/TDV) erica.becvar.1@us.af.mil John Tunks (CH2M Hill – Denver) john.tunks@ch2m.com Doug Downey (CH2M Hill – Denver) doug.downey@ch2m.com 17 of 17