I would have to go back to, basically, a discourse, whether it's for business or operation. You need to look at the business case and the expected outcomes. I'd add that what's key is looking at life cycle analysis or cost of operation, and not just at capital costs. Oftentimes in the past, and still now, we look only at the investment, the capital costs. You need to look at the whole operational cost, the life-cycle cost. This is where you will get the cost savings from energy savings. You need to look at the big picture, looking at the life of the operation of any asset.
On October 30th, 2018. See this statement in context.