Figure 108: Smart Ageing, Copper Consumption per Ageing Population Addressed – Base Scenario (kg per Head)

1. 
   Incremental copper use for a full smart ageing system is 16 kg per head.
   
2. 
   The ageing population to be addressed in any one year equals the increase in size of the ageing population in that year plus 2.5% of the existing number of elderly people.
   
3. 
   There is a wealth cut off point below which no smart ageing development will take place (assumed to be US$5,000 per head GDP).
   

The copper per head figure is based on an average floor space per head of 40 m² (assuming some dual occupancy) and a rate of copper use 40 kg per 100 m² above the existing standard (i.e. 70 kg minus 30 kg). The second bullet point is intended to reflect the fact that people are likely to move into smart ageing accommodation on or fairly soon after retirement, but that some others (maybe due to a life changing event such as the death of a partner) will enter the pool of likely candidates at a later stage.