Something sensible from @SimonGr. Well not the cheapest but very efficient over resistance hot water heaters and better than gas hot water.
By heating and storing hot water at times of the day when solar generation is at its peak, Australia’s collective domestic hot water systems could absorb 15 to 31 GWh of energy per day.
Not only would that be an effective use of solar energy when it is most abundant, it would also act as a massive source of flexible demand to help maintain the stability of electricity networks.
What are the alternatives to gas?
The report focuses on three types of domestic hot water systems: electric resistance; instantaneous gas; and air-source heat pump.
The first two are currently the most commonly installed in Australia. Heat pumps are relatively expensive to buy and install now, but are growing more popular because they are highly efficient systems and cheap to run.
Something sensible from @SimonGr. Well not the cheapest but very...
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