B oosting Life Cycle Assessment in Small and Medium Enterprises

1. Boosting Life Cycle Assessment in Small and Medium Enterprises

2. LCA togo E-Learning courseforMachinetools – V1.6 17.04.2014 Authors: Antonio Dobon, Sebastian Glaser, Karsten Schischke, Jan Schneider, Jude Sherry Editors: Florian Krautzer, Rainer Pamminger, Wolfgang Wimmer

3. Loweryourimpact on theenvironment, heightentheimpactofyourbusiness Improving the environmental performance across your product’s life cycle can pave the way to a successful business. Using LCA to go can provide you with the information you need to inform better decision making within your business. Lower your impact on the environment and reap the benefits: Cost reductions Cut down on wastage during manufacturing and save costs by maximising efficiency Secure supply chain Identify supply risks of rare raw materials and reduce the use of rare raw materials in your products Comply with legislation Manage your environmental legal responsibilities and avoid costly changes to comply with new regulations Increase sales and diversify Reach new audiences in a fast-expanding conscious market and gain competitor advantage Achieve brand loyalty Build trust and relationships with your customers with a brand that cares

4. What is LCA to go? LCA to go is an online tool that measures a product’s environmental performance based on the principles of a simplified Life Cycle Based Assessment (LCA). This simplification has been developed by LCA experts since the start of the project in 2011. They have defined the most relevant boundaries, data and impact categories across seven sectors: photovoltaics, industrial machines, sensors, electronics, printed circuit boards, smart textiles and bio-based plastics. This pre-identification greatly reduces the complexity involved in undertaking a Life Cycle Based Environmental Assessment. LCA to go will enable: planners, installers or designers of photovoltaic systems to assess and communicate the environmental benefits of their systems manufacturingrsof plastic products to assess the environmental and financial performance of bio-based plastics in comparison to conventional petroleum based plastics designers and producers of smart textiles to assess the environmental performance of their products designers, assemblers or producers of computer like devices to assess and communicate the environmental benefits of reliable and long-lasting products machine tool manufacturingsto identify potential environmental improvement options industrial sensor providers to quantify the environmental and financial benefits of installing a sensor system designers and producers of printed circuit boards (PCBs) to assess and improve the environmental performance of PCBs

5. What is a Product’s Life Cycle? Every product interacts with the natural environment across its full life cycle, which includes material extraction, manufacturing, distribution, use and end of life. Energy, water and materials are taken from the natural environment while air and water pollutants and solid waste is emitted back into the environment. The most significant extractions from and emissions into the environment are measured and analysed through a life cycle based assessment to determine a products environmental performance. Understanding your product’s life cycle environmental performance can enable you to identify and priorities environmental improvements opportunities.

6. E-learningcourse on environmental assessmentofmachinetoolswiththe LCA togo online tool Introduction Stepbystep e-learning: <sector>home • Definethescope • Collectdata • Model the Life Cycle • Enterdata • Review theresult • Interpret theresult & deriveimprovements Machinetools Case Study Definitions

7. Sectorspecificcourse / Step 1 1. Definition oftheproduct & scope Substeps: • Define thegoalofthestudy • Define thefunctionalunit • Define thereferenceflow • Define theproductsystemandtheunitprocesses • Draw a processtree • Definethesystemboundariesof all 5 lifecyclestages • Defineotherrequirements 2 Home Definitions

8. 1.a. Define thegoalofthestudy i. Why do I needtodefine a goalformystudy? Defininga goalhelpsyouidentifytheobjectives, applicationsandtargetaudienceofyourstudyand will allowyoutoeasilykeeptrackoftheseveryimportantfactorsthroughoutthestudy. ii. Howcan I define a goal & whatshouldbeincluded in mygoaldefinition? A goaldefinitionshouldhavethreeparts. Itshouldidentify: thereasonforundertakingthestudy (Why?); thetargetaudience (Who?); the potential areasofapplicationforthestudy (What?) iii. Can thegoalbemodifiedduringthestudy? The goalshould not bemodifiedduringthestudy. Ifchangesoccurduringthestudy, a newgoalshouldbedefinedand a newstudy (whichcantakethecurrentstudyas a basis) shouldbemade. An examplewouldbe, ifyouconduct a studyfortheengineeringdepartmentandthemarketingdepartmentwouldliketousethestudyforcommunicationpurposes. In thiscaseyoushouldformulate a newgoal, ifpossible, usetheexistingstudyas a basis, to carry out a moredetailedstudy, focusing on thenewlydefinedgoalandthe different targetaudience. Machinetoolsexample

9. 1.b. Define a Functional Unit What is a Functional unit? • The functional unit is the amount of product/material and energy required to accomplish a certain function. • example for packaging: Delivery of 1000 l of orange juice to the supermarket with 1L beverage carton, 1.5L HDPE bottle, and 0,75L glass bottle. The Functional unit here would be 1000 l of orange juice. • example for energy consuming product: Provide 7500 h of internet service with a modem type A, modem type B and modem type C • example for machinery: convert 1000 kg of pellets by extrusion machine A and extrusion machine B Why do I need to define a Functional unit and what is it used for? • The functional unit is used as a basis for comparisons between products, materials and equipment. This will ensure that all studied systems are fully comparable. How can I define a functional unit? • The easiest way for define a functional unit is to identify clearly the function/s provided by the product to be analysed and then assess if the products to be analysed can either accomplish the same function or not. Functional unit: 1m² Mainfunction: Havingpainted a wall Paint Machinetoolsexample

10. 1.c. Define a Reference Flow What is a Reference flow? • A reference flow is the basis for calculation required to accomplish a certain function provided by a product service. • Paint example: amount of paint required to having painted 1 m2 of wall. Why do I need to define a Reference flow and what is used for? • This is essential in every life cycle assessment, since it is used as a basis for comparisons. • LCA users ensure with their use that systems under analysis are fully comparable How can I define a Reference flow? • Let’s see with an example: if the function is to having painted 1 m² of wall with water-based paint with a yield of 5 m²/L vs. a solvent-based paint with a yield of 2.5 m²/L, therefore different amount of paint will be used to paint the same wall surface. This is called reference flow and it is an essential part for comparison Amount of water-basedpaintrequiredforthefunctionalunit 1 m2/(5m2/L) = 0,2 L Functionalunit 1 m2 Amount of solvent-basedpaintrequiredforthefunctionalunit 1 m2/(2.5m2/L) = 0,4 L Machinetoolsexample

11. 1.d Define a Product System andtheUnit Processes What is a product system? A product systems is the set of unitary processes necessary to perform the function specified in the functional unit. All inflows and outflows shall be defined. In practice, this is the whole life cycle diagram. See an example for a PLA-based carrierbagbelow. What is a unitprocess? A unit process is the minimum element for which life cycle data on inputs and outputs isavailable Whatinformation do I needtodefinetheproductsystemandtheunitprocesses? You will just need a clearidea on themaininflowsandoutflowsto a certainproductsystem Corn growing and harvesting (materials) PLA pellet processing Film extrusion PLA film Printing and die-cut Transport and delivery Use End of life Input of raw materials Outflowsbetweenunitaryprocesses Output of emissionstosoil, wateror air, solidwaste, etc. Input of water Unitprocess Input of energy Machinetoolsexample

12. 1.e.i Draw a processtree Why do I need to draw a process tree for my product system and how can I use it? Visualizing the single processes and their relation may help you understand what exactly you have to consider when collecting data for your life cycle assessment. Furthermore the development of the process tree usually helps to “not forget” parts of the product system and enables you to structure the following steps such as data collection and life cycle modeling. Where does a product life start, where does it end? Again – this depends on the product that you’re about to evaluate. But in general, the “start” is where the raw materials or the energy needed for the manufacturing of your product come from. This is important at it also shows the “coverage” of decisions that you make during the design of the product. The end of life of your product usually falls together with its disposal and / or recycling. That does not automatically mean that you have the possibility to influence what exactly happens at this stage. Machinetoolsexample

13. 1.e.ii Draw a processtree Process 1, e.g. casing - 4 MJ heat - 30 g copper scrap - 15 l wastewater - 1.5 kg copper - 13 kWh electricity - 15 l tap water - 0.3 m³ argon Whatis a processtree? A process tree is a special flowchart. In this flowchart, all relevant material flows, energy flows, emissions and other streams are depicted. If possible, they are assigned to a special process or step within the life cycle stages of the product. The process tree should represent all life cycle stages needed to properly model the product. An example is used in Step 1.d. and another is shown on the right – please be aware that there is no “defined” structure as the extent and quantity of single processes depends on the modeled product. The process tree should refer to a known quantity of product – if possible, to the functional unit. Process 2, e.g. plastic parts molding - 0.7 kg LDPE - 3 MJ process heat - 2 l distilled water - 2.5 g additives - 2 l wastewater - 0.05 kg LDPE Process 3, e.g. assembling - 0.2 m³ argon - 0.7 kWh electricity - 3 l tap water - 2 MJ heat - 3 l wastewater Process 4, … - … - … Machinetoolsexample

14. 1.f.i Define thesystemboundaryfor all 5 lifecyclestages Why is it important to define the system boundary for all 5 lifecyclestages? You should define clearly which are the boundaries of your product system. This shouldbedonefor all 5 lifecyclestages, namely Materials, Manufacturing, Distribution, Useand End oflife. Let‘ssee some examples: • Should the packagingmaterials be included? Yes, if relevant per unit of product (usually for big products or when a reduced amount of products are delivered). • Should the impact to produce and maintain the equipment be included? Yes, if the production is small and repair/maintenance operations are often required. Howcan I definethesystemboundaryfor all 5 lifecyclestages? The easiestwayfordoingthatistocreate a tabletoregisterwhichaspectshavebeeneitherconsideredor not. This will allowyoutotracktheprocessesincluded in yoursystemandeasilymovetoyourlifecyclediagram. An exampleisshownon thefollowingslide: Machinetoolsexample

15. 1.f.ii Define thesystemboundaryfor all 5 lifecyclestages Machinetoolsexample

16. 1.g. Define otherrequirementsforthesystemboundary Whatotherrequirementsarethereforthesystemboundary? Appartfromdefiningyouproductsystemanddrawingyourprocesstreeitis also importanttodefineyour Temporal, Geographicaland Technological requirements. This meansthatyoushoulddefinefirst, howoldthedatathatyouintendtouseshallbe, whichgeographicalboundariesyouintendtoset, especiallyforthemanufacturingsiteandplaceofuseforyourproductandfinallywhetheryouwanttoinvestigateonespecifictechnologyor do an assessmentfor a representativefamilyofproducts. Why do I needtodefineotherrequirements? Definingthese additional requirementshelpsyouset a perimeterforyourstudyareaandvalidatesyourresults, helpingyoureachyourstudygoalandenablingyoutocommunicatetheresultsmoreclearly. Machinetoolsexample

17. Sectorspecificcourse / Step 2 2. Collectdata Substeps: • Identifynecessarydata • Define thedepthandqualityofdataneeded • Identify & keeptrackofdatasource • Identifyandtrackthedataquality 1 3 Home Definitions

18. 2.a.i Identifynecessarydata Whatdataneedstobecollectedandhowcanthisbedone? Data will beneededthroughout all lifecyclestagestomodeltheproductlifecycleproperly. Somedataneedstobecompiledbyyourself, whichdefinesyourproductorsystem, but yourdata will becomplementedbysomebackgrounddata on e.g. electricitygenerationorupstreamrawmaterialsproduction. Ifrequiredforyoursector, youmightneedtocollectdataasfollows: FortheMaterialsstage, identifythematerialsused; datamightcomefromthespecificationorexperts FortheManufacturingstage, collectdataon Electricityconsumptionformanufacturingofpartsandassemblyofthe final product. This canbedoneby: • measuringtheenergyconsumptiondirectlyattheproductionline • devidingtheelectricityconsumptionoftheentireproductionlinethroughthenumberofunitsproduced Wastegenerated in themanufacturingofpartsandassemblyofthe final product. FortheDistributionstage, collectdata on shippingdistancesaswellaspackagingmaterialsused FortheUsestage, estimatelifetimeandusepatterns, determinethecountry / regionwheretheproductorsystemisused FortheEnd oflifestage, collectdata on currentdisposalandrecyclingpracticeandestimate, whichend ofliferoute mightbetakenbyyourproduct. Machinetoolsexample

19. 2.a.ii. Identifynecessarydata:Materials and Manufacturing What is a decision rule for mass inclusion? Why do I need it? How can be defined? A decision rule is a very easy rule aimed at exclude certainmaterials/ manufacturingprocessesfor which the contribution to the global environmental impact is assumed as negligible. Let‘s see an example fora grindingmachine. Decision rule: Exclude all materials, contributing less than 1 % of the total weight of the final product. These components can be excluded as they do not represent more than 1% of total materials to the product system, reducing substantially the efforts for data collection!!! Be careful not to exclude small amounts of high impact materials such as rare earth metals. Machinetoolsexample

20. 2.a.iii Identifynecessarydata:Distribution, Use, End oflife: Multiple clients I have a numberof different clients, how do I accountforthisandwhatdata do I need? Clients canbe in a rangeof different locations, usinganddisposingoftheproductin different ways. To deal withthesedifferences, LCAs usescenariosasshown in Step 3. The datayourequire will depend on thescenarioyouareinvestigating. As an example, ifyouknowwhereyouship a certainproductbymarketshare, thenyoumaydevelop a tableasshownbelow: Youcanthendeveloponescenarioas an averageforyourproduct, ie. assumingthatyouaretheoreticallysellingoneproductunit50% toPoland, 40% to France and 10% toSweden. Alternativelyyoucanspecificscenariosforspecificclients. The requiredinformationremainsthe same. Often, ifyoucannot find specificinformationsuch astheexacttransportdistance, startwith a conservativeestimateandidentifywhetheritis a relevant partofthe LCA beforespendingtoomuch time on gettingverydetailedandaccuratefigures. Machinetoolsexample

21. 2.b.i Define thedepthandqualityofdataneeded Towhatlevelofdetailandtowhataccuracyshouldthedatabecollected? The requiredlevelofdetaildepends on theimportanceof a certaindataset: Iftheoverallresultisknowntodependlargely on oneentry, thedatashouldmeet a high levelofaccuracy. Forexample, thisisextremelyimportantwhencertainenteredvaluesaremultipliedby a very large factor. In thesecasestheaccuracyofenteredvaluehastobevery high whereasforlessimportantdataitis not requiredtoinvest large amountsof time toachieve a high levelofdetail. Frequentlyonly 10-15 dataentriesdetermine 80% ormoreoftheresult, so effortsshouldbemadetogetthese 10-15 dataentriesright. Someexamples: As electricity in use, isfrequentlyhighly relevant, itisimportanttoenterthecorrectlocationandthecorrespondingelectricitygrid mix. If a productisusedoverlongperiodsof time overitslifetime, thisbecomesevenmore relevant. Preciousmetalsareminedandprocessedwith high environmental impactsandoccassionalydominatethewholeassessment. Gettingtheamountofpreciousmetalsright, evenifitisonlymilligrams, isof high importance in thesecases. The amountofwashingdetergentneeded in a singlecyclebecomesveryimportantiftheproductisdesignedto carry out thousandsofwashingcyclesoveritslifetime. Machinetoolsexample

22. 2.b.ii Define thedepthandqualityofdataneeded Can I firstgatherroughdatatogain an understandingoftheproduct‘s environmental impactandaddmoredetaileddatalater? Yes, get a firstimpressionoftheecoprofileofyourproductbeforedecidingwhichdatashouldbeimproved. Ifyouare not sureattheoutsetoftheanalysis, which environmental hotspotstoexpect, gothroughtheassessmentwithsomedefaultdataorworstcaseassessments. Check theresults. Refinedataentries. Get a feelingformost sensitive dataentries. Refinetheassessmentstepbystep. Sometypical environmental profiles: Manufacturing Materials End of life End of life Manufacturing Materials End of life Materials Manufacturing A sensorsystem, whichmonitorsindustrialprocessesmightreducethe power consumptionof a processline, whichbyfaroutweighsitsown environmental footprint. Modellingthesecondaryeffectsproperlyiskey. A mobile phoneisoptimisedforenergyefficiencyandbatterylifetime, but constitutesof a high shareofelectronicsparts. Modellingoftheelectronicscomponentsisimportant. A TV setconsumesmuchmoreenergy in usethan in production. Modellingtheusestageismostimportant Machinetoolsexample

23. 2.c.i Identify& keeptrackofdatasource Wherecan I find thedata I am lookingfor? Gooddatasourcesare: Productspecifications Supplierdata, although environmental dataisrarelycoveredbyanysupplychaindatamanagement Bill ofmaterials, whichhoweverfrequentlylacks relevant environmental data Material Safety Data Sheets Complementarylifecycledata in casethetoolyouareusingdoes not featurethebackgrounddatasetsyouarelookingfor; freepublicavailabledatasourcesinclude: • ProBas (German): Input-output datafor a coupleofmaterialsandprocesses, compiledby German Umweltbundesamt as an „LCA library“www.probas.umweltbundesamt.de • CPM: Life Cycle InventorydatafromprojectsatChalmers Universityhttp://cpmdatabase.cpm.chalmers.se/ • Databases hostedandupdatedbyindustryassociations: • Plastics Europe: http://www.plasticseurope.org/plasticssustainability/eco-profiles.aspx • Worldsteel: http://www.worldsteel.org/publications/position-papers/lca.html Machinetoolsexample

24. 2.c.ii Identify& keeptrackofdatasource Howto deal withdatagaps? Bepreparedtofilldatagapsbymeansofestimatesandassumptions. Engineers, designers, procurementstaffandothertechnicalexperts in yourcompany will beabletoprovideyouwithgoodestimatestofilldatagaps. Note anydatagapsandtrytorevisitthemifthey turn out tobe relevant in theresults. Even large enterprises do not havereadilyavailabledata on environmental issuesthroughoutthewholeproductlifecycle. Even environmental datafromtier 1 suppliersisrarelyavailableandsuppliersare not preparedtoprovideany such dataconsistently. Thereisnostandardforsuppliershowtocalculateandreportlifecycledata. Machinetoolsexample

25. 2.c.iii Identify& keeptrackofdatasource Howtoinquireforsupplierdata? A real lifeexample…. e-mail product manager to his supplier contact: Machinetoolsexample

26. 2.c.iv Identify& keeptrackofdatasource Howtoinquireforsupplierdata? A real lifeexample…. Reply 4 months later: Machinetoolsexample

27. 2.c.v Identify& keeptrackofdatasource Howtoinquireforsupplierdata? A real lifeexample…. What is the problem: Delayed reply As the inquiry was not very precise it is not clear at all, which methodological assumptions where made by the supplier (which processes are included, are upstream processes included and how are they accounted?) Ranges stated: Which value to calculate with? Recommended approach is “worst case”, but check sensitivity whether result changes significantly with average / best case values, then further clarification would be worthwhile Values are way too high for the production of semiconductors; further communication unveiled, that carbon footprint data includes power consumption in use, not only manufacturing Recommendations: Communicate closely with your supplier. Make clear your requirements and expectations. Provide clear guidance. Given the intensive communication required until you might get hold of robust data don’t target at a full supplier coverage with your inquiries. Ask only for the most important parts, components and materials. Machinetoolsexample

28. 2.d.i Identify and track the data quality Whatismeantbydataquality? For an engineeritmightbehardtounderstand, that environmental lifecycledataissubjecttonumerousassumptions, approximations, partlyguess-workandthusuncertainty. Data qualityessentiallyis an indicatorofhowgood a givendatasetandtherelatedresultsofmodellingrepresentthe „real“ lifecycleof a productorsystem. As longasdatacomesdirectlyfromyourproductandproductionline, dataquality will be high, but frequentlyyou will havetosourcedataforprocessesandlifecyclestages, whichare not underyourdirectcontrol. Thendataqualitycomesintoplayas a crucialissue. Machinetoolsexample

29. 2.d.ii Identify and track the data quality HowisdataqualitydefinedandwhatistheData Quality Indicator? Typicallydataqualityhasfivedimensions: (1) Reliability Isthedatabased on measurements, verifiedbyanybodyoronlyestimated? (2) Completeness How large isthe sample thedataisbased on? Isitrepresentative? (3) Correlationsin Time Howoldisthedata? (4) Correlationsin Geography Doesthedatastemfromtheregion, wheremycomponentsareproducedordoesthedatarefertosomeotherlocations? (5) Correlationsin Technology Are componentsandrawmaterialsprocessedwiththe same technologyasforthesystemtobeassessed? Keep in mind: The Data Quality Indicator in the „LCA togo“ toolismeanttoassessthequalityof YOUR dataentries, not ofthebackgrounddata in thetool. The userhastojudge, whether a backgrounddatasetisappropriatefortheintendeduse! Even a high qualitybackgrounddatasetappliedtothewrongraw material yields a wrongresult. Machinetoolsexample

30. 2.d.iii Identify and track the data quality How is data quality defined and what is the Data Quality Indicator? continued… In a simplifiedversion, theassessmentofthedataqualityisaggregated in oneofthreepossible Data Quality Indicatorscores: high Data quality low • Reliability • Completeness • Correlationsin Time • Correlationsin Geography • Correlationsin Technology • DQI • score Machinetoolsexample

31. 2.d.iv Identify and track the data quality Whyisdataqualityandkeepingtrackofdataqualityimportant? Assessingthedataqualityhelpsyou toget an impression, howreliableyouroverallassessmentresultis, and toimproveyourdatacollectionstrategytoenhancetheoverallqualityoftheassessment examples: Indicativedatafor Distribution is „nicetohave“ but „indicative“ levelforManufacturing iscriticalandshouldbeimproved!  ok, lifecyclestageswithhighestimpactfeature high dataquality Machinetoolsexample

32. Sectorspecificcourse / Step 3 3. Model the Life Cycle Substeps: • Review availabledataand bring itintoa usefulformat, makingassumptionswherenecessary • Develop Scenarios forthe Distribution stage • DevelopScenarios fortheUsestage • Develop Scenarios forthe End oflifestage 2 4 Home Definitions

33. 3.a.i Review availabledataand bring itinto a usefulformat, makingassumptionswherenecessary How can I best review the data and identify data gaps? Use a table to track data gaps is the easiest solution for doing that. Put there which data is necessary and optional as well as the assumptions you made. Machinetoolsexample

34. 3.a.ii Review availabledataand bring itinto a usefulformat, makingassumptionswherenecessary Can I make assumptions to fill these data gaps with estimates? Yes, of course. Assumptions are needed to reduce data collection efforts and must be clearly stated for a proper interpreation of results. How can I relate the data to my functional unit? Using the reference flow. Please seeStep1.c • What’sbetter? • A final result which does not consider the impacts of producing the ABS shell • Achieving a more complete total result which includes a conservative estimate for the process Assumption: considerthe total weight of the ABS shell and calculatetheprocessingbyassuming a general injectionmouldingprocess I cannot find suitable LCA data regarding the production of an ABS shell for an internet modem!!!!!! Machinetoolsexample

35. 3.b.i Develop Scenarios forDistribution What is a scenario in the context of an environmental assessment with the LCA to go tool? A scenario represents a possiblesituationapplicabletotheproduct in distribution, useand/ordisposal. Why are scenarios useful and when are they used? Scenarios are useful because they allow for the comparison of different possible situations the product may be found in and to allow for an environmental assessment, even if the exact distribution path, or use intensity or disposal method is unknown. Each scenario essentially models what happens when aproduct may be distributed to a range of different destinations and/or used in different intensities (e.g.: distribute your PCB to Austria or Mexico, used intensively or sparingly, landfill of carrier bag vs. incineration, etc.). Howmanyscenariosshould I defineforthedistributionstage? This dependsgreatly on the relative importanceofthedistributionstagecomparedtootherstagesin thelifecycleofyourproductaswellasthedifferencebetweenthe individual scenarios. Werecommendthatyoustartwith a worstcasescenariotoidentifythe relative importanceofthedistributionstage. Ifitis relevant in theproductlifecycle, itisbesttodevelopseveralscenariosbased on themarketshareoractualdistributiondata. The LCA goalmay also play a role, maybeyouwouldliketodevelop a scenariofor a specificcustomerormarket. Machinetoolsexample

36. 3.b.ii Develop Scenarios for Distribution How can I define a scenario for the distributionstage? Collectasmuchinformationasfeasibleon theweightoftheproduct, thelocationthatyourproductisshippedto, themethodoftransportandthepackagingused. Combine theinformationwithassumptionsandestimatestobuild a ‚complete‘ pictureforthedistributionofyourproduct. <insert sector> example Market share 40% National(Spain) 500 km Market share 5% + Europe (Sweden) 1270 km 780 km Overseas (Brazil) Market share 55% + Manufacturingplant in Spain 1120 km 6900 km Machinetoolsexample

37. 3.c.i Develop Scenarios forUse Sweden Whyarescenariosneededandwhenaretheyused? ThereareseveralfactorsthatinfluencetheimpactattheUsestage. Typicallyyouhavenocontrol on howtheproductisusedand different clientsmayusetheproduct in different ways Youmay not haveinformation on theactualuse The impactfromthe same useintensitymaybe different in different countries. Thatiswhyyouneedtosetupscenarioswith due careandcommunicateyourassumptionstransparently. As shown on theright, the environmental burdenofelectricityconsumptiondepends on the type andefficiencyof power plants in thecountry. Severalscenarioscanbedeveloped, depending on thelocationoftheclient. 46 g CO2-eq./kWh 681 g CO2-eq./kWh France Poland 96 g CO2-eq./kWh CO2emissionfactorsofelectricitygeneration(UK DEFRA 2012) Machinetoolsexample

38. 3.c.ii Develop Scenarios fortheUsestage Whyarescenariosneededandwhenaretheyused? See an exampleof Fujitsu andhowtheydepicttheresultsof a computer LCA. Depending on thelocationofuse, theoverallcarbonfootprintchangessignificantly: Machinetoolsexample

39. 3.d. Develop Scenarios forthe End oflifestage How can I define a scenario for the End oflifestage? Try todefine the most common scenarios forend oflifeas function of the geography as well as the userpreferencesandbuildthescenariosaccordingtoyourspecifiedgoalforthe LCA. A Scenario mayconsistofonepath (e.g. Incineration) fortheentireproductorof different pathsforeachraw material (e.g. Copper->Recycling, PVC casing->Incineration, Steel->Landfill) Howmanyscenariosshould I definefortheEnd oflifestage? Commonly, threescenariosaredistinguished in theEnd oflifestage: Recycling, IncinerationandLandfill. As always, check theimpactofthelifecyclestagerelative tootherlifecyclestagesbeforeinvesting a lotoftime andefforton buildingscenarios. Pleasefind an example for plastic packaging (2010 from Eurostat): Machinetoolsexample

40. Sectorspecificcourse / Step4 4. Enterdata Substeps: • Enterdatain the LCA togo online tool • Understandwhythedataisneededandwhathappenswiththeentereddata 3 5 Home Definitions

41. 4.a.i Enter data in the LCA to go online tool Wherecan I find thetool? Youcanaccessthetoolfromtheprojectwebsitehttp://tool.lca2go.eu/users/sign_in . You will needtoregisterandcreate an accountfirstbeforeenteringdata. Watch a demonstration video Machinetoolsexample

42. 4.a.ii Enter data in the LCA to go online tool Howcan I enterdataintothe LCA togotool? Create a newproduct Customizedlifecycleforeachsector Machinetoolsexample

43. 4.a.iii Enter data in the LCA to go online tool Howcan I enterdataintothe LCA togotool? Create a newproduct Go to „Introduction“ forfurthersectoralguidanceordirectlyto„Data entry“ Sectoralguidance on dataentries Self-assessmentofthequalityofyourdataentries Model yourproductlifecycle Calculateresults; will showresultsonly, ifyouhaveentered a completedataset Machinetoolsexample

44. 4.a.iv Enter data in the LCA to go online tool Howcan I enterdataintothe LCA togotool? Create a newproduct Go to „Introduction“ forfurthersectoralguidanceordirectlyto„Data entry“ „Data entry“: Makeentriesforyourproductlifecycle Comprehensivedataentrytemplatestomodelthelifecyclestagesonebyone Machinetoolsexample

45. 4.a.v Enter data in the LCA to go online tool Howcan I enterdataintothe LCA togotool? Create a newproduct Go to „Introduction“ forfurthersectoralguidanceordirectlyto„Data entry“ „Data entry“: Makeentriesforyourproductlifecycle Click „Next step“ tomovetothenextlifecyclestage Calculateresults; will showresultsonly, ifyouhaveentered a completedataset Machinetoolsexample

46. 4.a.vi Enter data in the LCA to go online tool Can I save thedataandreturnto finish thedataentryat a later time? All yourentereddataissavedunderyouraccount, onceyouclick or You will find yourproductslistedunder „My Products“ in the top rightcorner online trainee Machinetoolsexample

47. 4.a.vii Enter data in the LCA to go online tool Can I save thedataandreturnto finish thedataentryat a later time? Just click on the „status“buttontoreturntoyourdataentriesany time Machinetoolsexample

48. 4.a.viii Enter data in the LCA to go online tool Can I save thedataandreturnto finish thedataentryat a later time? Click on theduplicateicontomake a copyofyourproductentriesforcalculating a variant Can thedatabeseenby a thirdparty? No.  Your data is stored on the web server of the online tool, but it is only accessible with your account details. The user password is encrypted and even the host is not able to read it. Therefore, only the user can access their own data. Machinetoolsexample

49. dataentry 1 dataentry 3 Results dataentry 2 dataset 1 dataset 2 dataset 3 4.b.i Understand why the data is needed and what happens with the entered data What happens with the entered data? Your entered data is used as input parameters for a mathematical model. This model links your entered data with background datasets to calculate the results for your product. Internal data model Internal database Machinetoolsexample dataentry 4

50. 4.b.ii Understand why the data is needed and what happens with the entered data Where does the internal data model come from? The data models for each sector individually have been developed in the “LCA to go” project. These data models provide the link between technical terms and the environmental data in the background. Machinetoolsexample