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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

eTool LCA Software Updates – Autumn 2014

eTool LCA for Any Project

We conducted a retrospective LCA on the harbour bridge a while back, which highlighted how versatile eTool LCA was.  It was clunky though.  Whilst setting up the harbour bridge project we had to answer questions in the eTool LCA interface like “Number of bedrooms”.  We weren’t quite sure how we were going to solve this little quandary once and for all.  There seemed to be an unmanageably large number of different types of structures with potentially unique functional attributes.  For example, in the OmniClass classification there’s 748 different “Facility Types”.  When you also add all the possible iterations of mixed type facilities we really started scratching our heads.  Why?  Here’s a few reasons:

  • The result was bigger than the biggest number that excel could calculate (1.79 x 10308)
  • If we provided the software uses with a drop down to choose from this list, the drop down would extend past he bottom of your screen, through the Earth, out of our solar system, out of the milky way and through a bunch of other galaxies.
  • If you could navigate through that list of different functions at the speed of light, and the one you wanted happened to be half way down the list, it would take you longer than the time between the big bang and now
  • The amount of data stored in that list would take your computer about the same length of time to retrieve the list from the internet

Anyway, we knew we needed another method.  We needed an ability to not only choose from the list of facility types, but enable custom combinations of these facility types in the one design.  For example, a mixed development with residential, retail and commercial space.

This feature also started us on our journey of BIM integration.  Thus far we’ve drawn on COBIE as our categorisation standard, but in the future we hope to map this to other standards so users can report however they see fit.  The flexibility of eTool LCA just exploded (without the clunkiness, or waiting until the next big bang for your list of facility types to download).

eTool LCA for Infrastructure

In our new list of possible design functions we have infrastructure elements such as roads, rail, air ports, bridges, stadiums etc.  We even have applicable functional attributes that users can choose for the appropriate infrastructure.  For example, a road designer may choose to measure their impacts per:

  • passenger transported
  • tonne of freight transported
  • workload unit (one passenger or 100kg of freight)
  • unit area of pavement
  • unit length of the road

Hopefully this drives some serious though about what the function of that infrastructure is, and how the movement of passengers or freight may be better done with lower carbon alternatives such as rail!  After all this is one of the beauties of LCA.

eTool LCA for Energy Generators

Another neat example of facilities that can now be assessed with eTool LCA is electricity generators.  Fancy running an environmental life cycle assessment of a wind turbine verse solar PV verses coal fired plant?  Knock your socks off!  The functional unit you’ll probably be choosing here is impacts per life cycle kWh generated.

eTool LCA for Data Centres

A little left field, but how to you compare the sustainability of data centres?  Have a go in eTool LCA!  You can choose from the below functional units to ensure you’re making fair comparisons between different options:

  • Annual data stored
  • Life cycle data stored
  • Annual data transmitted
  • Life cycle data transmitted
  • Net usable area

What next for eTool LCA?

For those who are rushing to check out the above functionality, bare in mind this is hot off the press and we’re yet to develop a library of templates that support these new types of construction entities.  This will come though, especially with the template validation functionality that is already helping our library grow.

In the mean time, software features continue to roll on.  The two big projects we’re working on at the moment is BRE IMPACT compliance.  We’re excited about this as it’s a third party verification system specifically designed for what eTool LCA does – LCA of Construction Projects.  Not only is this a big indication of the mainstreaming of LCA, it’ll also be really nice to have an official seal of approval on the accuracy of eTool LCA.

The other big project is a push on reporting.  We’re introducing a whole heap of cool new reports aimed at users to generate promotional and marketing ideas for their improved buildings.  Is this core to LCA, absolutely now.  Is it important to ensure that environmentally sustainable buildings proliferate?  Absolutely.  We don’t have our pulse on this globally but we hazard to guess the biggest impediment to truly sustainable buildings in Australia is a total disinterest within the real estate industry.  And eTool LCA is will hopefully spark this interest a little more by providing agents with really useful info to help them sell better buildings.

Past that, refer to our product roadmap which (although partially implemented) gives a good idea of where we’re heading longer term.

How to design a low carbon building

When it comes to designing your dream green home, there’s a lot to consider, are you going: carbon neutral, net-zero, off the grid, energy efficient, high performance or sacrificially sustainable?

With so much to think about, people often get hung up on the finer details like specific solar system sizes, rainwater harvesting and wooden fixtures and fittings, leaving the sustainable design to their architect or engineer.

But we’re here to tell you, it’s really not that hard! Once you start thinking about what low carbon is really about,  you can put these simple ideas into place and influence your final, sustainable design.

We work with low carbon designs everyday and put together a few keys points that can make a huge difference to the overall footprint…

1. Use life cycle design philosophy

2. Make it financially attractive

3. Design for the future…make it last

4. Make it functional

5. Choose quality over quantity

6. Use low embodied energy materials

7. Remember the 3 R’s

8. Think local, but not always

9. Make it climate sensible

10. Don’t land in hot water with your energy bills

11. Get a refresher on renewable energy

12. Low carbon doesn’t always mean sustainable…

 

Download our complete guide to low carbon building design!

Check back soon for more information about choosing locations, deciding about material distance and transportation and finding out whether solar PV really is that sustainable.