What Does It All Mean?

Transcription

1 What Does It All Mean? 1

2 Environmental Product Declaration (EPD) Provide quality assured and comparable information regarding environmental performance of a product and/or service Type Standard 3 rd party reviewed Endorsement Shorthand I ISO Yes Yes Eco-label II ISO No Yes Selfdeclaration III ISO Yes No Nutrition label Type III EPD 2

3 Type III EPD Life Cycle Assessment Technique to assess the environmental aspects and potential impacts associated with a product, process, or service. Part of the ISO environmental management standards 3

4 Product Category Rules Instructions on how and what to report via the EPD Intended application Intended audience Disclosed to the public Product studied Functional unit System boundaries Life cycle stages included Allows For Comparisons 4

5 Helps Prevent Why Bother? Building owners asking for EPDs i.e., report your carbon footprint Required by Architecture 2030 Challenge for Building Products LEED 2012 Industry wide EPDs (company listed) permitted Plant specific EPDs PCRs are being developed we need to be a the table 5

6 Architecture Challenge for Buildings 2030 Challenge for Products 35% or better in % or better in % or better in % or better in 2030 Environmental Product Declarations (EPD) Product Category Rules (PCR) If no products meeting reduction targets in a category, specify materials below category average University of Washington Heading Carbon Leadership 6

7 PCR Committee PCR Development Process Task Date Committee Formed May 2011 PCR Public Draft Issued February 14, 2012 Public Comments Due March 31, 2012 Final Version May 2012 EPD Program Adoption??? 7

8 Goals Quantify environmental impacts of specific concrete mix designs Encourage supply chain specific EPDs for Cement SCMs Aggregates Water Admixtures Track and reduce the environmental impacts Additional performance metrics for concrete Differentiate products 8

9 Declared Unit / Product description 1 yd 3 (m 3 ) Specified compressive strength at age Exposure class (per ACI 318) Specified slump or slump flow Other performance characteristics Life Cycle Stages 9

10 System Boundaries A-1 Raw Material Supply (upstream processes) Extraction, handling and processing of raw materials A-2 Transportation Transportation to 'gate' of the concrete producer A-3 Manufacturing (core processes): Energy used to store, batch, mix and distribute the concrete and operate the plant A-4 Construction Transportation (optional) Transport of the concrete to the construction site Excluded from System Boundary Production, manufacture and construction of buildings Production and manufacture of concrete production equipment, concrete delivery vehicles, earthmoving equipment, and laboratory equipment Personnel related activities (travel, furniture, office supplies) 10

11 Impact Categories (2 Levels of Detail) Level A: Single attribute Carbon footprint only Level B: ISO compliant EPD Total primary energy consumption Non renewable Renewable Water Use Total waste disposed Global Warming Potential/'Carbon Footprint Ozone Depletion Potential Acidification Potential Air Eutrophication Potential, Air Eutrophication Potential, Water Photochemical ozone creation/smog Human Health Criteria (particulate matter) Human Health CF Non Cancer Human Health CF Cancer Selection of Data Plant specific EPD results Publicly l published LCI data CO2e: Use defaults noted in Appendix B LCI of concrete, Marceau, 2007 US LCI Database (NREL) USEPA Specific data plant energy use, water use, fuel use etc. 11

12 Data Variability Data sources Optimal Default Site specific EPD Median + std dev 10th%=80% ave 90th%=150% ave National or Regionally specific industry averaged EPD Median (50%) + 10th/90th percentiles 10th%=80% ave 90th%=200% ave Allocation Assumptions Emissions from waste incineration (e.g. tires) are considered to be allocated to the original intended use (e.g. cars) Emissions from bio fuels can be considered as net zero provided that the bio fuels are waste product biomass Emissions from coal power and steel or ferro silica metal production need not be allocated to the waste products (SCMs) 12

13 Content of EPD The name and address of the manufacturer Description of the construction product and declared unit Construction product identification A description of the main components Name of the EPD program Date the declaration was issued and the 5 year period of validity Which life cycle stages not considered A statement regarding data quality and variability Content of EPD (con t d) A statement that EPD of construction products may not be comparable if they do not comply with this standard The site(s), manufacturer or group of manufacturers or those representing them for whom the EPD is representative Other important environmental data about the manufacturer or product 13

14 Sample EPD for Concrete Product Description The declared unit is 1 cubic yard (1 cubic meter) of concrete for each of the following concrete products: Product name STR040 Specified Compressive 4000 psi (28 MPa) at 28 days Strength Specified Environmental Exposure Class (in F0, S1, P0, C0 accordance with ACI 318) 6in in. +/- 1.5 in. (152 mm +/- 38 Specified Slump mm) Foundations, footings, basement walls and slabs on Typical Applications grade with moderate sulfate exposure 14

15 Main Components Component Meeting the Following Standard ASTM C 150 Type II Portland Cement Slag cement ASTM C 989 Fly ash ASTM C 618 Fine and Coarse Aggregate ASTM C 33 Admixtures ASTM C494 Water ASTM C 1602 EPD Program Used This environmental product declaration was developed following the Product Category Rules (PCR) for ISO Type III Environmental Product Declarations (EPDs) of Concrete developed and registered at the Carbon Leadership Forum The reported carbon footprint represents a cradle-to-site inventory of the greenhouse gas emissions attributed to the production of this unique concrete mix design. The calculations were prepared in conformance with the Carbon Leadership Forum s Concrete Product Rules dated 2/14/88 which provide clarification for adopting the WRI/WBCSD Greenhouse Gas Protocol Initiative Product Accounting & Reporting Standards dated 2/14/99. The EPD Program Operator verifying/registering this EPD is Green Environmental Sustainability, Inc.: 1000 Heavenly Way Seattle, WA The Life Cycle Assessment was independently verified by Go Get Em Environmental: 2000 Cradle Lane Cradle, CA

16 Data Quality and Variability Statement The life cycle inventory data used to conduct the LCA for the products in this EPD was obtained from industry average data and is classified as good quality. The data was obtained from Life Cycle Inventory of Portland Cement Concrete, by Marceau, et al. This EPD was created using industry average data for upstream materials that did not include the variability of the upstream material component impacts. Variation can result from differences in manufacturing processes, manufacturing efficiency and fuel type used. Global warming potential values can expect to vary between 80% and 150% of values reported. Other environmental impact values can be expected to vary between 80% and 200% of values reported. Environmental Impacts Impact Category Impacts (US Units) Impacts (SI Units) Reference Total Primary Energy 2.13 MBTU/yd MJ/m3 N/A Non-renewable 1.92 MBTU/yd MJ/m3 N/A Renewable 021MBTU/ 0.21 MBTU/yd3 281 MJ/m3 N/A Batch Water 210 lbs/yd3 127 kg/m3 N/A Wash Water 30 lbs/yd3 18 kg/m3 N/A Total Waste Disposed 40 lbs/yd3 24 kg/m3 N/A Global Warming Potential 254 kg CO2 eq/yd3 334 kg CO2eq/m3 TRACI Ozone Depletion 0.00 kg CFC11 eq/yd kg CFC11 eq/m3 TRACI Acidification Potential 0.59 kg SO2 eq/yd kg SO2 eq/m3 TRACI Eutrophication Potential Air 0.00 kg N eq/yd kg N eq/yd3 TRACI Eutrophication Potential Water 0.07 kg N eq/yd kg N eq/m3 TRACI Photochemical Ozone Createion/Smog 0.05 kg C2H6 eq/yd kg C2H6 eq/m3 TRACI Human Health Criteria (particulate matter) 0.38 kg PM10/yd kg PM10/m3 TRACI Human Health CF Non-cancer 2.03E-5 CTUnoncancer/yd3 2.67E-5 CTUconcancer/m3 TRACI Human Health CF cancer 5.54E-6 CTUcancer/yd3 7.29E-6CTUcancer/m3 TRACI 16

17 Additional Environmental Information Rock Solid Concrete Company is dedicated to continuous environmental improvements through product and process innovation. It demonstrates its dedication to sustainable development through the following certifications: NRMCA Certified Concrete Production Facility NRMCA Green-Star Certification NRMCA Sustainable Concrete Plant Certification Silver Level EPD Document 17

18 Can we do this for concrete? Thousands of mix designs at each plant New mix design developed d for many projects Mix designs change with season Mix designs change with material availability Do we have upstream data? How much will this cost? How long will it take? 18

19 We have to try Good start we have a PCR We need your help review the PCR and provide comments by March 31 Next steps Develop industry wide EPD for concrete Develop a simple LCA tool to help members create EPDs Identify EPD operators and LCA practitioners to verify the tool Identify EPD operators to adopt PCR and the EPD tool Develop baseline(s) for Architecture 2030 Challenge 19

20 Other Challenges PCR will penalize companies using industry average data Average footprint for cement industry Average footprint for aggregate PCR will reward companies using plant specific data Footprint of cement from plant Footprint of aggregate from quarry How do we establish baseline(s)? 20