Why are there peak times for tariffs?

  • Wholesale electricity is charged to us at 'off peak', 'peak' and 'super peak' so we pay more for our imports at different times of day
  • Peak times put greatest demand on our network system
  • We have to manage this demand/load to protect the network infrastructure
  • If demand exceeds our supply contract we pay penalties
  • We want to encourage customers to use electricity during off-peak times for heating and water heating by offering discounted rates