For those that live in Qld, you can have any part of your electric brew rig connected to tariff 33 or T31. If you have a separate circuit from the main switch board then it is a simple job for an electrician to alter the wiring in the board and possible install a relay, depending on the load. Ergon or Energex do not charge to change the metering. The only drawback is the equipment must be directly connected and not plugged in.
Contact your power supply company for more details. With T33, you will have supply available at least 18 hours in a 24 hour period. Sometimes more but never less. It may not be all at once. The cost saving is quite significant if you are heating a large boiler. Typically though, you will not have supply available between 4 pm and 10 pm in warmer weather. You may swap between tariffs no more than once every 12 months or they will charge you to do it.
If you happen to have grid tied solar power, then it depends on that feed in rate you are on. If you happen to be on a rate higher than 25.5 cents, then any power you use during the day is extremely expensive (up to twice). If you are on less, say 8 cents, then use as much of it as you can to run your rig while the sun is shining.
Contact your power supply company for more details. With T33, you will have supply available at least 18 hours in a 24 hour period. Sometimes more but never less. It may not be all at once. The cost saving is quite significant if you are heating a large boiler. Typically though, you will not have supply available between 4 pm and 10 pm in warmer weather. You may swap between tariffs no more than once every 12 months or they will charge you to do it.
If you happen to have grid tied solar power, then it depends on that feed in rate you are on. If you happen to be on a rate higher than 25.5 cents, then any power you use during the day is extremely expensive (up to twice). If you are on less, say 8 cents, then use as much of it as you can to run your rig while the sun is shining.