Green and LEED Construction Foothill College Summer 2009
Overview What is green building? What is LEED? Why are buildings important? What is the built environment? How can green building and LEED help?
LEED & Green Building LEED building Green building New construction Remodeling Commissioning
What is Green Building? Lower impact construction Recycled construction material Siting / integration with environment Natural ventilation / heating / cooling Lower energy / water use / costs Green Point Rated USGBC – US Green Building Council
Green Construction
What is LEED? Leadership in Energy and Environmental Design – a point rated building system Design for low energy and water use Natural ventilation and lighting LEED (title 24) Silver, Gold, Platinum Next step to net zero energy buildings
LEED Platinum Buildings
Why are LEED/ Green Buildings Important? Buildings use 40% to 50% of all energy –60% of all domestic electricity => buildings Produce 40 to 50% of greenhouse gases Energy efficiency (design/retrofitting) can save 40 to 50% of total energy use Would free up 25% of electricity use 25% saved electricity could power an Electric Vehicle (EV) fleet – no petroleum!
Residential / Commercial
Elements of Green Building
Site planning and design Community Indoor air quality Energy Materials Waste Water Commissioning Elements of Green Building
Green Construction Jobs Demolition / site preparation Carpentry Structural PV installation Retrofitting Caulking / glazing
The Built Environment Campus Sustainability Planning Network
What is the Built Environment? Existing construction Older buildings 90 million residences Human construction Anthropogenic Metabolism
Net Zero Energy Buildings Use = production Grid tied PV energy system DC/AC inverter Net metering
Net Zero Residential Rooftop solar Battery storage Solar/thermal water heating Geothermal heating/cooling solutions Water collection
Energy Saving Lighting HVAC Heating Appliances Onsite PV Ducting
Natural Daylighting
Water Saving Fixtures Toilets Showers Irrigation Gray water Water collection
Siting and Integration
Healthier Living Natural daylight Odor free carpets Low VOC paint Natural materials Open architecture Natural settings
Retrofitting / Remodeling Retrofitting Remodeling Insulation Windows Doors
Reuse of Materials Demolition Dismantled buildings Containers Steel and glass Carpets
Natural Ventilation
Integrated Energy
Low Impact Construction Site integration Prefab / recycled materials Local / reused materials Safer chemicals
New Architecture Sunset Breeze -
How Much Energy Saved? 25 to 40% electricity 25 to 40% natural gas 50% water Petroleum (construction) Petroleum (land use) LEED silver / Title 24
Passive Energy Production Onsite solar (PV) Run of river hydro Geothermal / earth convection / circulation Integrated wind Stored energy (RP)
Future of Buildings
Where to Learn More USGBC – WebUrbanist – GlobalGreen.org EPA.gov – Green Building Resource Guide -