Green Charrette BANCROFT ELEMENTARY SCHOOL GREEN CHARRETTE

Transcription

1 Green Charrette Bancroft Elementary School Andover, Massachusetts June 9, 2010

2 Green Charrette To familiarize and educate stakeholders on general sustainable design principles and the MA- CHPS or LEED certification process, identify existing sustainable design opportunities, and develop sustainable design goals that specifically align with the School District and Town s goals and mission.

3 Agenda Introduction (5 minutes) Break out groups (30 minutes) Reconvene and summarize (30 minutes) Questions & Answers (20 minutes)

4 Green Can Mean Many Things Energy Efficiency Renewable Energy Stormwater Management Water Efficiency Regional Planning Sustainable Materials (Recycled Content, Regional, Re-use, etc) Indoor Air Quality Indoor Noise Reduction Day-lighting And Views

5 Discussion Topics Sustainable Sites Water Efficiency Energy Efficiency & Renewable Energy Sustainable Materials Indoor Environmental Quality Policy/ Operations & Innovative Design

6 Site & Water Sustainable Sites Regional/Town Related Issues Pedestrian and Bike Access Stormwater Management Reduced Heat Island Effect Minimize Parking/Individual Vehicular Trips Exterior Light Pollution Reduction Water Efficiency Indoor water use reduction/conservation No Permanent Irrigation

7 Energy Efficiency and Policy/Operations Energy Efficiency High Performance Envelope High Efficiency Lighting/Daylighting High Efficiency HVAC Systems Renewables Passive Ventilation Geothermal Systems Policy & Operations Anti- idling Policies Energy Star Appliances Innovative Design credits

8 Sustainable Materials & IEQ Sustainable Materials Construction Waste management & recycling Highly recyclable material selections Storage and Collection of Recyclables Indoor Environmental Quality Day lighting & Views Mechanical Equipment Filters Acoustical performance: Acoustics in classrooms Thermal Comfort

9 Current Sustainable Elements ENERGY Energy recovery at all air handling units Use high-efficiency (90% to 95%) condensing boilers High efficiency interior lighting fixtures High performance building envelope PV Ready Roof SITE Bio-swales will be used to store stormwater runoff, reducing the impact on the Town s storm sewer system. Building orientated to increase daylight brought into the building Building footprint is minimized to decrease site impact MATERIALS Up to 90% diversion goal for construction and demolition waste Forest Stewardship Council certified wood, use of salvaged, recycled, regional, or bio-based materials

10 Current Sustainable Elements INDOOR ENVIRONMENTAL QUALITY Daylight modeling - Skylights and or clerestories to introduce daylight Electronic ignitions for gas-fired equipment Low VOC - Classrooms to have operable windows OPERATIONS AND MAINTAINENCE School bus anti-idling measures Green cleaning commitment from the Town WATER No irrigation for landscaped and lawn areas Low flow urinals and toilets

11 Fenestration Criteria The higher the better! Image: PPG

12 Control Direct Beam Sunlight Images: Courtesy of NBI New Buildings Institute Interior shelves bounce light off reflective ceilings Exterior Shading Devices Control Direct Solar Penetration

13 Green Roof Reduced Heat Island Effect Promotes Biodiversity Reduces Stormwater Run-off Blue Cross, Blue Shield of Rhode Island Wellesley High School, Wellesley, MA

14 Bioswales Regulate flows Increase infiltration Filter pollutants

15 Flooring Life Cycle Cost Analysis

16 Wind Turbine Site Considerations Available Wind Site Location Energy Usage Transportation Energy Revenue/Avoided costs Utility Charges Wholesale Market Renewable Energy Certificates Small scale turbines Educational Program

17 Renewable Energy: Solar PV Cost: roughly $8,000 - $10,000/ kw Production 1,300 kwh/kw Enough to power 160 sq. ft. Saves $170/year Payback Without incentives ~45 years With incentives ~varies

18 Photovoltaics

19 Rainwater Harvesting System Rainwater is collected by the roof drains. The water is drained into a Central Storage Tank.

20 Rainwater Harvesting System Example of Rainwater Harvesting Feasibility Study Assessment SYSTEM TYPE INITIAL FIRST COST 25 YEAR REPLACEMENT COSTS 50 YEAR MAINTENANCE COSTS 50 YEAR WATER SAVINGS 50 YEAR LIFE CYCLE COST 100,000 Gallon Rainwater Harvesting System $400, $67, $281, ($1,128,222.00) ($378,501.75) SYSTEM TYPE INITIAL FIRST COST + 25 YEAR REPLACEMENT FIRST ANNUAL SAVINGS PAYBACK OTHER ENVIRONMENTAL IMPACTS ESCALATED SAVINGS (3.5%) 100,000 Gallon Rainwater Harvesting System 37 years $467, ($6,000.00) 37 years (with cost escalation) 1. 1,600,000 gallons of water saved per year 2. Educational Tool ($490,213.20) Table based on 100,000 gallon system. Cost for 20,000 gallon system 100K Cost for 50,000 gallon system 250K

21 Green School Certification in MA MA-CHPS: the Collaborative for High Performance Schools (CHPS) published a point system adopted by Massachusetts. LEED: Leadership in Energy & Environmental Design Meeting the requirements can earn up to an additional 2% of eligible construction costs from the MSBA, with reaching MA-CHPS 50 points or LEED for Schools Silver certification level (50 pts).

22 MA-CHPS Certification DRAFT MA-CHPS 2009 scorecard

23 LEED for Schools Similar to MA-CHPS 2009

24 LEED & MACHPS Comparison LEED MACHPS Appeal Process Yes No appeal but pre-submittal review Online Resources More robust online resources Less robust online resources Prerequisites Yes Yes Communication Less direct with GBCI (USGBC) More direct with CHPS Fees $6,000 approximate $5,000 approximate Regional Credits Stormwater Quality & Renewable Energy Not applicable Min MSBA Project Req 40pts (+3 to 4) 40pts (+3 to 4) For Additional 2% Reimburstment 50pts (+3 to 4) 50pts (+3 to 4)

25 Funding Sources MSBA Additional 2% incentive points (of eligible costs) if 50 points reached Green Communities Grants Bay State Gas Possible incentives for high efficiency gas fired equipment National Grid Electric Incentives Program

26 Consideration Points How does one view and pursue Green? Cost Effective Long Term Environmental Impact Educational Benefits

27 Next Steps Design Process Input & Feedback Schedule P&F Guidelines/Maintenance Discuss Break Out Session Topics

28 Option 2:

29 Break Out Sessions Site & Water Energy Materials & Indoor Environmental Quality Student group

30 Building Owner s Checklist for Sustainable Design Features Keep it Simple Can Existing Staff Operate & Maintain? Will Repair Parts be Available? Are Savings Guaranteed? Back Up System Needed? Warranty 5 Years or More?

31 Thank You Bancroft Elementary School Andover, Massachusetts June 2010

32 Project Timeline Design Phase Schematic Design October 2010 Construction Documents January 2012* Construction Phase Phase 1 Apr 2012-Aug 2013* Phase 2 Aug 2013-May 2014* * Assumes May 2011 Ballot Vote