Lighting The average household spends upto 9% of their annual energy bills on lighting. See below for some tips on energy efficient lighting. Make the most out of natural light Use energy efficient lights: CFLs use 80% less energy and last around 10 times longer. Each CFL can save up to $20 per year and standard halogen globes use 30% less energy and last twice as long. Each globe can save up to $7 per year Select the right light for the space Turn off lights: 26% of people leave lights on all evening in unoccupied rooms Standby power and lifestyle appliances Standby power and lifestyle appliances make up to 10% of household energy use, or over $100 per year on energy bills. See below for some tips on reducing your energy use.