Achs Case Study In Implementing Chps


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Achs Case Study In Implementing Chps

  1. 1. CHPS American Canyon High School : A CHPS Case Study
  2. 2. CHPS American Canyon High School Facts • 2200 students, 260,000 s.f., $121 million • First CHPS Verified Project, earning 47 points. • Earned $1,000,000 in extra funding from OPSC Prop 1D • Produces 55% of it’s electricity • Uses 55% less potable water
  3. 3. CHPS Presentation Outline 1. Project History and Process Don Evans, NVUSD 2. Campus Design Aaron Jobson, QKA 3. Break 4. Collaborative Design Process Aaron Jobson, QKA 5. CHPS Verified Submittal Melanie Jacobsen, AEC 6. OPSC Prop 1D Submittal Aaron Jobson, QKA 7. Lessons Learned Aaron Jobson, QKA 8. Questions
  4. 4. CHPS Project History and Process Don Evans, NVUSD
  5. 5. CHPS NVUSD • Serves most of Napa County • 17,500 students • 23 Elementary Schools • 5 Middle Schools • 5 High Schools • Diverse student body
  6. 6. CHPS The City of American Canyon • Incorporated in 1992 • Rapid population growth from 9,774 in 2000 to 15,276 in 2008. • Suburban, bedroom community at the southern end of Napa County • No Downtown, Civic Center or other Civic face to the City
  7. 7. CHPS Environmental Leadership • Pragmatic approach to Environmental and Economic goals. • First Hybrid School Bus. • 20% Energy use reduction program. • Developing District wide Solar Energy program
  8. 8. CHPS ACHS Project • Began in 2003 with purchase of land. • Long and complicated site acquisition and permitting process including 320 acres for environmental mitigation • Goal is to alleviate bussing of over 1,000 students from AC to Napa every day and accommodate growth. • First new High School in District since 1970’s
  9. 9. CHPS ACHS Programming • 10 month interactive process with the Community. • Innovative Educational Program focused on Small Learning Communities and Career Pathway Centers. • Excellent community involvement. • Joint use with the City of AC and Napa Valley College
  10. 10. CHPS Campus Design Aaron Jobson, QKA
  11. 11. CHPS The City of American Canyon
  12. 12. CHPS Educational Program • Small Learning Communities • Career Pathway Centers • Strong sense of Campus Community • Connections between uses • Joint Use of Facilities
  13. 13. CHPS Sustainable Design • Energy Efficiency • Stormwater Management and Filtration • Water Efficiency • Indoor Environmental Quality • Keep it within the budget
  14. 14. CHPS Site Plan
  15. 15. CHPS Enlarged Site Plan
  16. 16. CHPS Campus Fly-through
  17. 17. CHPS Sustainable Design Strategies Daylight and PV
  18. 18. CHPS Sustainable Design Strategies Materials and Systems
  19. 19. CHPS High Performance Features CHPS Criteria
  20. 20. CHPS SS1.3 - 1pt & SS1.4 - 1pt Central Location Joint Use • 50% of students live within 4 miles • Stops the bussing of 1200+ students to Napa • Joint Use of Theater with City of American Canyon • Napa Valley College Classrooms incorporated into the Campus to create Middle College Program
  21. 21. CHPS SS1.6 - 1pt Reduced Building Footprint HA E L E V. LOBBY SHAFT • All major buildings are 2 stories HALL or more • Most functions aggregated into 6 main buildings • Floor Area Ratio of 1.8 • Per square foot construction cost was less than comparable single story high school construction
  22. 22. CHPS SS2.2 - 1pt Bicycle Use • 250 bicycle racks provided • Bike Racks are distributed around the campus • Sidewalks extended to connect with adjacent developments and bike path along American Canyon Creek
  23. 23. CHPS SS3.2 - 1pt Storm-water Treatment and Management • Bio-Swale to filter storm-water naturally as it moves through the site • Retention basins to slow storm- water flow into American Canyon Creek • Construction Stormwater management practices to prevent water pollution. Storm- water Pollution Prevention Plan (SWPPP)
  24. 24. CHPS SS4.2 - 1pt & SS5.1 - 1pt Cool Roofs & Reduced Light Pollution • Roof materials which reflect, rather than absorb, sunlight. • Reduces Urban Heat Island affect and reduces the heat gain for the building. • Typically light colored versions of standard roof materials. • Light fixtures with cut-off optics focus light onto ground and minimize light transmitted to the neighborhood and atmosphere
  25. 25. CHPS SS6.1 - 1pt Schools as a Learning Tool • Touchscreen Kiosk and Website displays information about the High Performance Features • Students, teachers and community can learn about the features and how to take advantage of them. • Real-time information about energy use and production.
  26. 26. CHPS WE 1.1 - 2pt Reduced Water Use - Landscaping • City supplied non-potable water used for all irrigation. No potable water use. • Native and drought tolerant plants used throughout campus. • Synthetic turf field at stadium reduces water use. • All irrigation systems are automatically controlled.
  27. 27. CHPS WE 2.1 - 1pt Reduced Water Use - Toilets and Urinals • Waterless Urinals • Already used by NVUSD in all restrooms for 3 years with positive results. • Dual Flush toilets. • 52% less water use than industry standard.
  28. 28. CHPS WE 2.2 - 2pt Reduced Water Use - Indoor • Sink Faucets operated by self- charging sensors. • Low-flow shower heads. • 58% Less water use than industry standard.
  29. 29. CHPS EE 1.1 &1.2 - 12pts Energy Efficiency - Building Envelope • High insulation values • R-26 at most exterior walls. • R-38 at most roofs • High Performance insulated glass with low-e coatings • Thermally broken aluminum frames.
  30. 30. CHPS EE 1.1 &1.2 - 12pts Energy Efficiency - Lighting • Classrooms have fluorescent direct-indirect suspended fixtures. • Efficiently provides excellent general illumination. • Lighting power use is 30% lower than Title 24 baseline. • Daylighting controls and occupancy sensors throughout
  31. 31. CHPS EE 1.1 &1.2 - 12pts Energy Efficiency - Mechanical System • Ground Source Heat Pump Mechanical System. • Uses the constant 60 degree temperature of the ground to provide heat and cooling. • Individual heat-pump units in classrooms. • 300 wells, each 300 feet deep are tied together into a closed loop system.
  32. 32. CHPS EE 2.1 - 3pts Renewable Energy • 400 kw roof mounted PV system. • PV Glass at major entries provides a visible face to the PV system and provides shading. • 600kw ground mounted system at north west edge of the campus. • 55% Grid Neutral. (Based on Title 24 estimate)
  33. 33. CHPS EE 3.1 & EE 3.2 - 1pt Commissioning • Enhanced Commissioning provided. • The bridge from the design through construction to operations. • Critical to the successful implementation and use of the building systems as designed. • Pays for itself many times in wasted energy, conflict and other problems.
  34. 34. CHPS ME 2.1 - 1pt Construction Waste Management • 75% of Construction Waste to be recycled. • Contractor generates Construction Waste Management Plan and tracks amount of materials sent to landfill and recycled. • Materials are sorted and organized onsite.
  35. 35. CHPS ME 4.1 - 1pt Recycled Content • Prescriptive Method: • Landscape Mulch: 100% • Standing Seam Metal Roof: 50% • Wheel Stops: 100% • Carpet: 30% • Prescriptive method chosen to prevent the requirement for the contractor to track the value of all recycled materials. • Recycled content considered and specified in many other materials.
  36. 36. CHPS ME 4.1 - 1pt Recycled Content • Non-Credit Recycled Materials: • Steel (structural and framing): 23-85% • Ceiling Tiles: 15-26% • Gypsum Board: 18-50% • Fly Ash: 50% of cement • Fiberglass Insulation: 22% • MDF: 30% • Aluminum Storefront: 60% of Frames
  37. 37. CHPS ME 4.2 - 1pt Rapidly Renewable Materials • Linoleum specified for resilient flooring in classrooms, hallways, lobbies, etc. • Cork-faced tackboard used instead of vinyl faced tackwall.
  38. 38. CHPS EQ 1.1 - 1pt Daylighting • 37% of classrooms meet CHPS Daylighting criteria. • All Classrooms designed to provide balanced daylight and minimize the use of lights. • Gymnasium and Multi-use spaces will operate without lights. • Daylight controls in all rooms.
  39. 39. CHPS EQ 1.1 - 1pt Daylighting • Translucent Daylighting Glazing used in Classroom Transom windows and at Gymnasium windows. • Solatube and translucent skylights used to provide balanced daylighting. • BIM based dayighting modeling integrated into the design process.
  40. 40. CHPS EQ 1.2 - 1pt & EQ 1.3 - 1pt Classroom Lighting & View Windows • Direct-Indirect Fluorescent lighting with separate fixture for the teaching wall. • Switching for AV mode per CHPS. • 100% of Classroom, Admin and Library areas have View Windows. • Daylighting controls
  41. 41. CHPS EQ 2.2 - 3.5pts Low Emitting Materials • 7 Specified Low Emitting Materials: • Carpet • Paint • Linoleum • Gypsum Board • Insulation • Acoustical Ceilings • Cabinetry
  42. 42. CHPS EQ 2.3 - 1pt & EQ2.5 - 1pt Pollutant Source Control and Filtration • Contracted Removable mats at main entries • Integrated carpet walk-off areas at exterior classroom entries. • MERV 11 Filters Specified on all equipment.
  43. 43. CHPS EQ 3.1 - 3pts Improved Acoustics • Background noise at 35 dBa, Reverberation time of 0.6s. • Acoustic Tile Ceilings and Carpet • STC 45-60 rated walls • Ground Source Heat Pump mechanical units are much quieter than typical package units. • Acoustically lined ducts and sound traps used where required.
  44. 44. CHPS EQ 4.1 - 2pts Controllability of Systems • Each Classroom is served by a separate heat-pump unit. • HVAC for each classroom is independently controlled. • Operable windows in each classroom provide for natural ventilation.
  45. 45. CHPS Break 15 Minutes
  46. 46. CHPS OPSC Prop. 1D Funding Aaron Jobson
  47. 47. CHPS Submittal Process • Complete CHPS Verified Design Submittal • CHPS will submit documentation to DSA High Performance Incentive Review • DSA checks documentation and issues letter stating number of credits • DSA HPI review letter submitted to OPSC with application
  48. 48. CHPS Funding Limitations • Funds allocated as a percentage increase to OPSC per pupil base grant. • No funding if District does not have OPSC eligibility • Modernization base grants are much smaller than new construction. Therefore funds allocated for Modernization projects will usually cover Commissioning and submittal costs. • Results in funding amounts that are significant, but not huge. ACHS received ~$1,000,000 which is 0.8% of the construction cost.
  49. 49. CHPS Sustainable Design Process Collaboration
  50. 50. CHPS Integrated Design Team • Bring all stakeholders and contributors together to set project goals at the beginning. • Encourage collaboration throughout the design process. • Use each team member’s expertise to make key decisions early in the design process • Evaluate design progress against original goals.
  51. 51. CHPS Lease-Leaseback Project Delivery • Allows collaboration with Contractor and key sub- contractors throughout the design process. • Allows selection of good, qualified Contractor and sub- contractors who are familiar with High Performance Schools. • Greater ability to partner with manufacturers to integrate new technology.
  52. 52. CHPS Building Information Modeling • Dynamic 3D model of the building that generates 2D documentation. • Also allows 3D coordination between engineers, architect, contractor, sub-contractors and suppliers. • Supports and empowers Integrated Design and Construction teams.
  53. 53. CHPS Better Design Communication • 3D renderings and animations are more effective tools for communication of design to community, client, and design team • Can easily show and evaluate changes and options in 3D • 3D images generated from the working model, no duplication of work
  54. 54. CHPS BIM Supports Collaboration • Allows Architects to view consultants work in our 3D models. • Easily communicate conflicts and potential solutions. • Quickly evaluate alternate design solutions to a problem.
  55. 55. CHPS Design in 3D • Better understanding of building by the whole design team. • Better coordination of details and actual building conditions. • Easier to assess impacts of design decisions. • More engaging and educational for younger staff members.
  56. 56. CHPS Use BIM for Analysis • Use the BIM model for dynamic analysis of many factors throughout the design process • At ACHS: • Site Analysis • Sun Shading • Daylighting • Other analysis options: • Thermal Performance • Ventilation (CFD) • Acoustics
  57. 57. CHPS Site Analysis • Used BIM model in Google Earth to analyze and check sight lines and views. • 3D model and 2D site plan imported into Google Earth and meshed with topography. • Model and site plan information can be shared with other Google Earth users.
  58. 58. CHPS Solar Shading • Used Ecotect’s Solar Tool to analyze potential shading strategies for a typical window • Real-time feedback is provided for shading designs for a point in time and over the year. • Allows for easy comparison of shading options and their benefits.
  59. 59. CHPS Daylighting • Used Ecotect to analyze classrooms for a variety of daylighting criteria. • Provides daylighting and shading analysis in a graphically rich 3D environment. • Can be easily configured to analyze classrooms according to the CHPS Daylighting criteria.
  60. 60. CHPS Lessons Learned Aaron Jobson
  61. 61. CHPS Integrated Design and Collaboration • The more the better. • Close collaboration with engineers beginning early in the design process. • Close collaboration with the Owner. • Lease-Leaseback allows collaboration with Contractor and sub-contractors.
  62. 62. CHPS Natural Ventilation • Great potential for energy savings. • Improves indoor air quality. • Possible in many California climates for much of the year. • Requires a shift in thinking for engineers, architects, owners and especially users. • Design Mechanical systems as a back-up only
  63. 63. CHPS Plug Load Management • As other electric loads such as lighting and HVAC decrease, Plug Loads are a larger percentage of electricity use. • Has the potential for significant energy savings. • Possible integration with EMS systems and occupancy sensors. • Requires close participation of Owner and Teachers.
  64. 64. CHPS More BIM • Get engineers working in BIM on all projects. • Use BIM model throughout construction. • Integrate and require 3D shop drawings. • Create BIM as-built for use as a Facilities Management throughout the life of the building.
  65. 65. CHPS Making the Case • Be honest, straight forward and pragmatic. • Listen • Present people the facts, let them make the decisions, respect their opinions. • Engage industry experts to help you where appropriate. • Don’t give up
  66. 66. CHPS Campaign for Green • Make Sustainable Design and CHPS part of your basic design process on every project. • Make the case at all levels: Public, Board, Administration, Maintenance, Staff, Students • Make the business case. • Don’t forget: It’s the right thing to do.
  67. 67. CHPS Thanks to QKA Team: Anna Wells,Barry Power, Bryan Chubb, Cam Hawing, Chris Scofield, Dan Malone, Jeff Howe, Jon Stong, Lyanne Schuster, Maria Thomas, and Shama Odenburg. Consultant Team: ZFA Structural Engineers, Costa Engineers, O’Mahony & Meyer, The Shalleck Collaborative, Chaudhary Associates, Gretchen Stranzl McCann Landscape Architect, Monk and Associates, Kleinfelder, Green Building Studio, Architectural Energy Corporation, Counselman Hunsaker, Ballinger Kitchen Design, Lohden Steele, Excelize, Inc. Questions Thanks!