Riley County Public Works Complex

1. Riley County Public Works Complex IMPLEMENTING SUSTAINABILITY:

2. Presentation Outline • Introduction to Riley County • Vision for Public Works Complex • Current Progress • Future Options • Project Summary

3. Introduction to Riley County • Approx. 70,000 residents • County seat: Manhattan, KS • Fort Riley • Kansas State University • Manhattan Area Technical College

4. Project Details • Campus for Several County Facilities • 10 Structures with Storage Yards • Approximately 70,000 square feet • 96 Acre site • Located at 6215 Tuttle Creek Blvd. • 5 Miles NW of Manhattan, KS on US 24

5. Public Works Complex Locator Map

6. Project Partners • Riley County Board of Commissioners • Architect • Anderson Knight Architects, Manhattan, KS • Mechanical Engineer • LST Consulting Engineers, Manhattan, KS • General Contractor • AHRS Construction, Bern, KS

7. Campus Facilities • Public Works Operations • Road and Bridge • Fleet Services • Parks Department • Noxious Weed Department • Household Hazardous Waste • Emergency Management Storage

8. Public Works Complex Facility Master Plan

9. Vision for Riley County “To help save taxpayer dollars by being a leader in the State of Kansas in implementing renewable energy efficient systems at county facilities” Goals include: • Using energy savings to pay for upgrades • Incorporating renewable energy • Reducing utility costs for operating county facilities • Providing an educational tool for the community and the state

10. Current Progress • -Green Design • -Geothermal (Heat Pump) • -Natural Lighting • -High Efficiency Lighting • -Radiant Heating • -Heated Ventilation System

11. Public Works Complex Green Design • Good candidate for LEED Certification • Use of energy efficient systems • Future use of renewable energy sources • Energy cost savings are considerable

12. Public Works Complex Green Design

13. Public Works Complex Ground Source Heat Pump • 44 wells, each 250 feet deep, installed to provide ground source heating and cooling. • Except for pumps, no gas or electricity is needed to heat or cool air circulated throughout the building

14. Public Works Complex Ground Source Heat Pump

15. Public Works Complex Ground Source Heat Pump

16. Public Works Complex Natural Lighting • Used extensively throughout the project • Allowed for a 50% reduction in number of light fixtures • Estimated 60% savings in energy costs

17. Public Works Complex Natural Lighting

18. Public Works Complex Natural Lighting

19. Public Works Complex Natural Lighting

20. Public Works Complex High Efficiency Lighting • T5 and T8 florescent light fixtures throughout • Use 35% less energy than old style T12 fixtures.

21. Public Works Complex High Efficiency Lighting

22. Public Works Complex High Efficiency Lighting

23. Public Works Complex Central Control System • Two facilities have an integrated central control system • System provides a central control point for regulating HVAC temperature after hours • Plan to connect other campus facilities as they are completed

24. Public Works Complex Radiant Floor Heating • Shop floors have hot water piping that store and emit heat • Floor heat provides quick recovery after opening shop overhead doors • Helps melt ice from plow trucks during winter months

25. Public Works Complex Radiant Gas Heating • Radiant gas heat is installed overhead in the main shop • Considered to be the most energy efficient system for large open shop facilities

26. Public Works Complex Pre-heated Intake Air System • The main shop is equipped with a heated ventilation system • Pre-heated intake air is supplied when exhaust fans are engaged to reduce energy load on other heating systems

27. Public Works Complex Automatic Vehicle Wash System

28. Future Options • Small Wind (50-100kW) • Large Wind (1-3MW) • Solar Electric (PV) • Solar Thermal • Waste Oil Heating • Central Control System

29. Public Works Complex Large Wind • Potentially Class 4 winds at the site • Industrial grade turbine – 2.5 MW • Provide access to educational partners for programs to teach students how to maintain large wind turbines

30. Public Works Complex Small Wind • Sized to match power consumption at Public Works Complex • Use technology that can be adapted for small businesses, homes, or farms

31. Public Works Complex Solar Electric (Photovoltaic) • Use PV for targeted applications, such as: • Street Lighting • Security Systems • Server Rooms

32. Public Works Complex Solar Thermal • Replace gas fired domestic hot water • Heating and cooling applications • Supplement radiant floor heating systems • Supplement vehicle wash system

33. Public Works Complex Waste Oil Heating System • Forced air heat for shop and storage areas in two facilities • Utilize the 13,000 gallons of oil currently collected each year by HHW

34. Public Works Complex Central Control System • Integrated system for all county facilities • Centralized automation system • Monitor renewable energy performance

35. Public Works Complex Project Summary

36. Project Summary We began with a vision for Riley County as a leader inimplementing sustainabilitywithin the State of Kansas 1

37. Project Summary 2 We identified sustainable technologies that would help us to accomplish that vision.

38. Project Summary We are partnering with Johnson Controls to guide renewable energy system implementation and guarantee performance 3