By John Naylor, Ann Brain, Russell Sully for Wangaratta Landcare & Sustainability
WATER heating is one of the biggest household energy costs.
Rewiring Australia shows how expensive - or inexpensive - heating water can be.
Heating water with electricity from rooftop solar dramatically reduces costs regardless of which type of electric heating is used.
Hot water systems (HWS) use an average 24 per ce...
