Electric hot water systems

Electric hot water systems use large amounts of electricity and are very greenhouse-gas intensive.

Therefore, if you nominate an electric hot water system in your New Dwelling BASIX project, you will usually need to include an onsite solar photovoltaic (PV) system to achieve the BASIX Energy target.

If you are installing an electric hot water system as part of an Alterations and Additions BASIX project, it is mandatory to include a new or existing onsite solar PV system. The PV system must (at least) offset the electricity used by the new electric hot water system.

  • If you are including a new PV system, the BASIX Tool will calculate the minimum size of the system required
  • If you are including an existing PV system, you need to apply for an Alternative Assessment and provide details of the existing PV system