LCA in Sustainable Infrastructure

This article provides an insight into the latest sustainability policies and regulations that have integrated the Life Cycle Design approach. Continue reading

eToolLCD’s Unique Template System

One of the defining features of eToolLCD is our unique template system.  Our ever growing library contains 1000’s of construction templates applicable to all kinds of building and infrastructure projects being built across the globe. The template approach ensures:

  • Repeatable results and consistancy
  • More consistent, accurate and comparable assessments
  • Geographically more relevant
  • Continual improvement in accuracy
  • A deeper understanding of construction make-ups and hotspots

Templates can contain high levels of detail, inputs and assumptions, work that is not only fully referenced and transparent but shared across the entire eTool community to utilise, adapt and improve on

You will almost always find a template that matches or is close to matching your specifications however, the templates are fully adaptible, users can clone and adjust templates to make the required updates.  These can then get added to the library for the rest of the eTool community to use so, every project gets completed in eToolLCD makes LCA quicker and easier for the next project!

Each template will include any number of materials, people and equipment entries with each individual entry having pre-selected LCA variables.

These are combined into complex whole make-ups such as the below, curtain walling insulated spandral panel:

Caurtain Walling

The user inputs the area of the panel in their project and the tempalte system autoamtically calculates the capping, mullions, transoms, fixing brackets, framing, glazing and insulation based on the proportions used to build the original tempalte.

So, users simply need to match their construction specification to the corresponding template and populate the approriate areas/quantities. This means that complex LCA models containing 100s of material entries can be built quickly from only a small number of basic inputs (floor area, wall area, roof area etc).

Hear what some of our users say about our template system.

“eToolLCDs prebuilt templates made it relatively easy to build up the baseline LCA model and then quickly compare different design options”

Ben Carr, AECOM

“The software works well, and the predefined templates that are selected to describe each building element align well to the architectural specifications.”

Anthony, ADW Developments

“The template approach to etooLCD software means that the initial process of formulating a baseline model is relatively quick, so time can be focussed on assessing options and recommendations.”

Peter, CHB Sustainability

For a detailed demonstration of our template system check out this video from our support pages.

 

 

Related Posts:
Creating Templates
Automated Reporting

eToolLCD Automated Report Branding

eTools automated reporting allows users to quickly produce high-quality reports from their models without the need to adjust and edit in word.  Having produced many early LCA reports manually in the early days we understand the frustrations that arise from copying into spreadsheets, word reports, formatting, finding errors and re-working.  We highlighted this is a big drain on resources that would be much better spent improving the actual quality of the modelling, recommendations and engaging design feedback. You can read more and see examples of our growing suite of automated reports here.

We also understand that users have their own branding and like to put their stamp on reports issued to clients.  Our reports can be downloaded in either word, pdf or excel formats allowing users to make edits and format as they wish.

For Specialist subscribers users we have introduced branding of reports, from a users profile they can upload their logo.

company logo

 

The logo then feeds through to the title page and header of the reports run from the users’ models.

report example logo

 

Freeing up your time to focus on the really interesting parts of your LCA studies!!

 

Related Posts: Setting Up Your Profile, Automated Reporting

eToolLCD Certification Service

Background

Ever since the early days of eTool we highlighted one of the risks to widespread LCA adoption is the varying levels of quality in building LCA models and subsequent loss in confidence of the results and conclusions drawn.  To mitigate this we have ingrained a formal certification process provided inclusive within your subscription/project access fees.  During the certification process, a senior eTool LCA practitioner is made available to your project for the purposes of:

  • Assisting the LCA team with completing the study in compliance with relevant standards (we have now completed over 400 projects for BREEAM, LEED and Green Star so will ensure the model is completed to the correct requirements and no hold ups occur during the BREEAM/LEED/Gren Star verification).
  • Providing credit for “3rd party verification” under BREEAM 2018.
  • Reducing the risk to your clients and elevating the professionalism of your service by peer-reviewing your LCA study to ISO 14040 and ISO14044 standards.
  • Assisting the LCA team with challenging concepts or modelling requirements.
  • Improving the LCA teams efficiency in completing LCA/LCCs using eToolLCD.
  • Providing the LCA team with potential strategies that may be worth considering to reduce the impact of the design.

The certifier will be “suitably qualified” to undertake peer reviews having as a minimum:

  • Completed at least 3 paid for LCAs within the last 2 years
  • eToolLCD advanced training course
  • Experience or qualifications in interpreting construction documentation

The certification system ensures that consistent, high-quality LCA studies are produced from the eToolLCD software. This lends further credibility to your work when clients see the eTool brand on your reports.

The certification is provided for up to 6 designs within an eToolLCD Building or Infrastructure entity. These designs may be very early stage models, or later stage complete LCA/LCC models or a combination, typically:

  • Concept Design Stage Base Model
  • Concept Design Stage Improved Model(s) (including all options modelled for BREEAM)
  • Concept Design Stage Final Model
  • Technical Design Stage Base Model
  • Technical Design Stage Improved Model(s) (including all options modelled for BREEAM)
  • Technical Design Stage Final Model

eTool understand that good LCA/LCC modelling is an iterative process and will be on-hand from the outset to provide assistance and answer any questions surrounding the modelling and certification.

Certification

Process:
1. eToolLCD user submits initial model/s for review
2. eTool staff complete QA / QC Checks on eToolLCD model/s and provides feedback
3. eToolLCD user complete / update eToolLCD model/s
4. eToolLCD user submit final model/s for certification
5. eTool staff completes certification (and clones model to BRE account if required)

Inclusions:
– An independent review of the eToolLCD designs (6 or less) conducted by a competent LCA practitioner commenting where applicable against each project, structure and model quality checks. As a minimum, the following is reviewed:

– In addition to ISO14040 and ISO 14044 quality checks the certifier will also review the following for both baseline models and optioneering models, in line with BREEAM 2018 requirements

  • Material quantities are within +-10% of those shown in design documentation (both concept and technical design stage models)
  • Where default figures for product service life, transport distance and construction waste have been adapted from generic material default values, there is adequate justificationa dn references.
  • Adhesives are inlcuded if cover more than 20% of materials surface
  • Study period of 60 years

Deliverables:
– eToolLCD Certifier Review Statement documenting checks made, comments and user responses using the certification checklist. See example report here.

– Phone/email/weblink support throughout the process

For further information see eTool terms and conditions

Super Credit (Materials+Energy+Water) for Green rating schemes

800px-Superman_shield_small
eTool believes the “Super Credit” based on the life-cycle methodology should be adopted in the short term as an innovation credit (alternative pathway for material, water and energy) in rating schemes like Green Star and ISCA.

In Green Star, LCA could be used to reward not only “Materials” but also the ‘Greenhouse Gas Emissions’ and ‘Potable Water’ credits when whole of building LCA is considered. Operational energy and water impacts are accounted for in separate credits within the existing rating tool – ‘Greenhouse Gas Emissions’ and ‘Potable Water’, respectively. Given the LCA would also account for these impacts, the proposed approach uses the LCA model as a pathway to integrate all three credits. This option became known as the ‘super credit’.

Project could potentially tap into 39 points under the Green Star – Design & As Built (v 1.2) rating tool using this performance based approach:

Materials (Life Cycle Assessment):  7 Points

Greenhouse Gas Emissions (Modelled performance): 20 Points

Potable Water (Performance pathway): 12 Points

This approach means that the energy and water modelling will still need to be done following the original credit description, however the inclusion of the “operational impact” data (modules B6 and B7) into the same LCA model will enable the most accurate and transparent environmental picture of a building project. Understanding how each part of the building (from material choice, water supply and treatment, up to a HVAC system selected) accounts for the total environmental performance, is a key for better design decisions. In addition, the combination of energy, water and material credits into one LCA model and quantifying points achievable via the ‘Super credit” could help to close some gaps of the Green Star Design and As Build 1.2 rating scheme.

Another rating scheme that is currently adopting the life-cycle philosophy and will benefit from it in a short term is IS – Infrastructure Sustainability.

As a member of the iSupply register with ISCA (Infrastructure Sustainability Council of Australia), eTool suggested the 3-in-1 LCD for materials, energy water ISCA credits. Among all rating schemes in Australia, IS rating is probably most innovative and progressive, adopting the continuous improvement processes and developing a new WWEM tool to combine water, waste, energy and materials calculators into one tool, sort of a “super calculator”.

With an LCA conducted using eToolLCD software even more IS credits could be achieved: Mat-1, or RSO-6, Ene-1, Ene-2, Wat-1, Wat-2, ECN-4, Man-6, Man-7, Lea-3, Innovation credits, resulting in up to 40 points (or almost half of the IS rating 2.0).

Super credit 3 ISCA

Siloed thinking of environmental performance leads to adverse trade offs for the planet. LCA prevents these adverse trade offs, and when coupled with a life cycle design process leads to large environmental performance improvements. There is now a strong trend in uptake of LCA for environmental decision making.

Examples below:

– In standards development: CEN was directed by the EU to produce standards for voluntary rating of sustainable buildings. They developed “EN 15978: Sustainability of Construction Works, Assessment of Environmental Performance of Buildings, Calculation Method” which is entirely LCA-centric.

– In regulation: Laws such as the 2011 Grenelle regulations in France require mandatory LCA-based environmental product labelling.

– In Green Building Rating Schemes: DGNB. LCA forms the bulk of the environmental assessment, LCC for economic and there are some tick boxes for social credit.

– A new EU rating scheme Level(s) that encourages the use of the LCA. Still early phases but it could end up being rolled out across the EU.

eTool believes the “super credit” would enable any sustainable rating scheme to progress towards the most holistic assessment methodology.

The advantages of the super credit

Good Environmental Outcomes: There is a much lower risk of negative trade-offs by integrating embodied and operational impact into the same analysis, instead of understanding the impacts of different categories separately.

More tangibility for the design team to understand the contribution of each improvement strategy and prioritise them. For example: recycled carpet vs lighting sensors vs high efficiency HVAC vs high efficiency water fixtures.

– Identifying different hot spots of a building depending on location (energy and water grids type) and building type. For example, an office building located in Victoria today (very high operational energy requirement, highly intensive grid) will likely need to focus largely on energy efficiency to improve environmental performance. Alternatively, residential buildings in Tasmania will likely have to put much more effort into materials, transport, construction, maintenance, replacement, water efficiency etc as the impacts relating to energy will be a much smaller percent of a reference buildings.

Aligned with global trend towards LCA (future-proofs the rating tool) that accounts for whole of project impact analysis.

Simplifies the maintenance of the existing calculator tools. Single LCA model to enter results from materials, energy and water.

Time-efficiency. The LCA outputs can be used to address multiple credits, not only related to the materials, energy, water, but also cost, innovation, waste, recycling content, maintenance and management decisions.

The reasons put forward for not adopting the super credit are not aligned with eTool’s experience in the application of LCA in the design process of hundreds of projects in Australia and abroad. LCA is only a “relatively coarse approach” if the practitioner is not guided on the method of underlying calculations that are applied in the LCA.

In the case of Green Star and ISCA projects there is nothing preventing the use of the same calculation methods for Operational Energy and Water that exist today (and indeed these are the figures used in Green Star and ISCA LCA studies).

Module A1 – A5 are arguably more predictable than water and energy consumption estimates (which rely on occupant behaviour). The significant challenges faced by eTool as a business who supply LCA software and LCA services to the construction sector are not generally technical in nature. For example, we’d consider the psychology of building developers to adopting strategies that the LCA identifies to improve the environmental performance of their projects to be more challenging.

We are not aware of challenges that would prevent the industry from adapting to a rating scheme using LCA as a core calculator for environmental performance (as for example DGNB have done) and offer our assistance in overcoming those challenges facing GBCA, ISCA and other rating systems.