8 December 2018 How are engineering companies addressing the issue of energy efficiency?
When is 'energy efficiency' important? 12/8/2018 Focussing Questions: When is 'energy efficiency' important? What is 'energy efficiency' to a project developer? What is the measure of 'energy efficiency'? How does this impact on technology selection?
When is 'energy efficiency' important? 12/8/2018 When is 'energy efficiency' important? Limited or very high cost energy (water) supply Good corporate citizenship Operating costs optimisation Optionality – unreliable and multiple supply systems
What is 'energy efficiency' in project development? 12/8/2018 What is 'energy efficiency' in project development? Process selection - particularly comminution High efficiency drives High efficiency lighting Optimised materials handling (trucking, conveying and pumping) Optimised elevations Water recovery efficiency – (water can cost $4/m3)
$ cashflow, NPV, ROV What is the measure of 'energy efficiency'? 12/8/2018 What is the measure of 'energy efficiency'? kWh/t ore processed? kWh/t metal produced? t CO2/t ore produced (including inherent energy)? t CO2/t metal produced (including inherent energy)? $ cashflow, NPV, ROV Energy cost and supply risks are factored in Corporate 'good citizen' policies are considered
Ingenuity & insight – the Ausenco group 12/8/2018 Ingenuity & insight – the Ausenco group
A cycle Need Idea Innovation Cost reduction 12/8/2018 A cycle Need Idea Innovation Cost reduction Paradigm shift (only when cost effective)
Why doesn’t every one drive a Prius? 12/8/2018 Why doesn’t every one drive a Prius?
Energy efficient operation Cost inefficient 12/8/2018 Energy efficient operation Cost inefficient (unless you are a taxi operator)
Conclusions Energy efficiency is a sub-set of cost effectiveness 12/8/2018 Conclusions Energy efficiency is a sub-set of cost effectiveness The key driving forces are commercial Energy costs Energy supply limitations Revenue implications To optimise energy efficiency requires a 'business optimisation perspective' Cost People Energy
8 December 2018 Thank you Ingenuity & insight – the Ausenco group | July 2012 | 11