7 Star Energy Ratings Explained – What It Means, What It Costs & How to Get It Right | Nina Kelly

Energy efficiency is now mandatory for every new home in Australia but most people have no idea how the assessment actually works or what it costs. Nina Kelly from ESD Studio joins Behan to break it all down, from NatHERS ratings and climate zones to solar orientation, insulation, glazing and the whole-of-home assessment most people have never heard of.

Chapters

00:24 – What is energy efficiency and why does it matter
03:46 – How NatHERS assessments work
05:40 – Climate zones explained
06:46 – How Nina models your home and what she looks for first
09:25 – Solar orientation
10:30 – Why living areas facing south is a major problem
11:34 – When to ignore orientation for the view
14:00 – Windows (glazing ratios, types and how they affect performance)
17:20 – Insulation – what to include and where it makes the most difference
22:00 – Wall construction – brick vs. brick veneer vs. Framed
28:00 – The renovation star rating trap
33:00 – Eaves and shading
38:00 – Existing homes
48:00 – Whole-of-home assessment explained
59:39 – Gas hot water and solar panels
1:00:37 – When the budget doesn’t fit for energy efficiency
1:02:37 – $10K Question

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