BASIX certificate for garage converted granny flat

Discussion in 'Adding Value' started by htopg, 11th Feb, 2015.

  1. htopg

    htopg Member

    26th Mar, 2012
    Sydney, NSW

    I am applying BASIX certificate for my garage converted granny flat.
    There is one item that I am struggling to pass - the energy.
    I need 40 to pass but I only got 12 now BEFORE adding the score for hot water system.
    The existing electric storage hot water system (score 2) is dragging down the score.

    Score 0~15
    2 electrical storage

    Score 16~30
    16 electrical instantaneous
    14~24 gas storage
    16~27 electric heat pump - air sourced
    28~30 gas instantaneous

    Score 30+
    33 ground source heat pump (direct exchange)
    34 wood combustion
    34 ground source heat pump (closed loop)
    31~37 solar (electric boosted)
    36~38 solar (gas boosted)

    I need 28 more to pass.

    Some of the above are either too expensive (ground source heat pump for $10k), or not practical (wood combustion or gas instantaneous as there is no existing gas line).

    Is there anyone who has applied BASIX certicate before and might be able to shed some light?

    It seems that solar (electric boosted) is the best bet now. Has anyone installed solar hot water (electric boosted) system before? How much does it cost for the smallest unit?

    Thanks in advance.