Some interesting solar facts
Test results from pilot studies have shown that energy savings without a timer or load management device averaged about 44%. The introduction of a timer improved energy savings to about 66%. Where no electrical back-up is installed, all the electricity previously used for water heating will be saved, but with a greater risk of occasionally having cold water.
To optimise energy and hot water savings, install energy and water saving shower heads to reduce hot water consumption.
Insulate hot water piping to minimise heat losses and reduce the requirement for electrical backup power.
Savings can further be maximised by using hot water in the evening rather than in the morning, for example by showering or bathing before going to bed rather than after getting up.
Showering generally consumes less water than bathing.