Benefits of Green Buildings Government Finance Officers Association of Texas April 2014
Overview LEED History and information General Purpose & Examples LEED Scoring & Benefits City of Irving Projects Certification Things to Remember 2
History of LEED Leadership in Energy and Environmental Design United States Green Building Council Founded 1993, Non-Profit, Non Government Agency Committee of Architects; Real Estate Agents; Building Owners; Lawyers; Environmentalists Pilot Program launched in 1998 3
Did you know? Building Facts Buildings consume 68% of all electricity 5 billion gallons/day of potable water 12% 2.5 lbs of solid waste generated per square foot Create 38% of all carbon dioxide emissions Buildings produce 35% of all storm drainage Americans spend 90% of their time indoors Indoor pollutants can be 2-5 times higher than outdoor 4
General Purpose Energy Savings Water Efficiency CO 2 Emissions Reduction Indoor Environmental Quality Stewardship of Resources Basically create buildings that are high performing, healthy, durable, environmentally sound and affordable 5
Examples of LEED Credits Products Manufactured w/ Recycled Material Renewable Energy Recycling of Construction Debris Locally Provided Material Low Emitting Materials Paints Adhesives Enhanced Commissioning 6
Description & Scoring LEED analytical points system Various Rating Systems New Construction Operations & Maintenance New Construction Certified 40-49 points Silver 50-59 points Gold 60-79 points Platinum 80-110 points 7
Benefits Triple Bottom Line Environmental Limited resources & sustainability Recycle and Re-use Socially Acceptable Environmental stewardship Create healthy buildings Financial Impacts Initial cost Lower operating cost 8
West Irving library Completed April 2011-25,000 SF USGBC LEED Gold Award 9
West Irving library Geothermal heating and cooling 14 miles of piping 140 wells 10
West Irving library $1.15M SECO renewable energy grant $1.94M Solar PV Total Cost 11
Photovoltaic system 339 KW system 2 Inverters: 260 KW & 75 KW Over 1400 Solar Panels 6 Horizontal Arrays 2 Carport Arrays 1 Sun Tracking Array 29,000 SF of solar panels 12
Photovoltaic system 13
Net-Zero Energy Building Total kilowatt hours generated to date: 1,282,542 Kwh Average annual electricity generated: 400,000 kwh Average annual power put back to the grid: 200,000 kwh Average annual credit: $15,000 Net-Zero Energy 6% Annual return on investment 16 Year payback period 14
Electric vehicle charging station 38 free level I - electric vehicle charging stations 2 level II electric vehicle charging stations pay by usage 15
Convention Center Irving Convention Center Silver Certified Reclaimed Water & Low Flow for Irrigation Reclaimed water for Urinals and Cooling Tower Alternative Transportation DART Rail Sustainable materials Copper panel skin 16
Solar street lights 5.5 Mile stretch along Irving Blvd 170 solar lights replaced 266 HID lights City received a $2 M DOE grant Estimated Savings of $1 million 10 year period 4 5 day battery supply 17
South Irving Library Targeted to be silver certified Geothermal heating and cooling Heat activated reflective glass 18
LEED Certification Requirements Design Phase Review preliminary scoring Construction Phase Review final scoring Electronic Submittal to GBCI Third party reviewer Determines level of LEED achievement Contractor must keep detailed records Take 12-15 months after construction to get final certification 19
Things to Remember Architect s contract needs to include requirements for assessment and scoring Contractor is a key component of certification Scoring is higher on re-use site Extra points for a site with mass transit access Cost of third party reviewer Try to hire experienced Architects and Contractors 20
Thank You any questions? 21