David Hawton, Canada

I am of the belief that most large factories can cut their energy usage by 10% minimum.

Areas to look at are:

• installing efficient lighting and motion sensors
• insulating furnaces
• modernizing electrical motors and installing capacitors
• implementing daily checklists for supervisors to turn off unnecesary energy uses
• plugging of compressed air leaks - the single biggest waster of electricity in any factory

Companies like to see fast paybacks - making industry more efficient will buy the world time.