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Energy pitfalls when building and renovating

11/10/2017

1 Comment

 
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Does your home meet energy ratings?

A section of the National Construction Code could result in higher energy bills for homeowners. The section allows builders to bypass energy efficiency requirements using a less precise rating scheme.

NatHERS matters
The Nationwide House Energy Rating Scheme (NatHERS) ensures that new houses and renovations meet minimum energy ratings so that they are compliant with the Code. But the problem is:
  • Builders are applying Reference Building Verification Method (RBVM) also known as Verification Using a Reference Building (VURB) standard to meet energy efficiency standards
  • VURB standard allows builders to award Pass or Fail instead of 0-10 stars
  • VURB Pass or Fail falls short of the NatHERS 6-star rating 
  • VURB was to accommodate alternative building technologies to comply with standards
  • VURB standard allows builders to deliver thermal performance ratings as low as 2.7 stars

Home buyer or renovator
Check out Saskia Pickles’ article in Conversation titled Construction industry loophole leaves home buyers facing higher energy bills. VURB transfers hidden costs of heating and cooling to home buyers and renovators.
To avoid extra energy costs, you can ask a NatHERS assessor to review your plan or rate your home, for excellent energy rating.
Complying with the Code and achieving a minimum energy efficiency rating, is a complicated process. The links and information provided only a basic introduction.

How to navigate the basics of the Nationwide House Energy Rating Scheme:  
Step 1: Watch the Nationwide House Energy Rating Scheme (NatHERS)  explanation video.   
Step 2: Check out how the National Construction Code (NCC) works. 
Step 3: Download the Performance Solutions for Energy Efficiency flowchart   
Step 4: Download the Compliance with the NCC flowchart. It explains how to meet compliance.  
Step 5: Download the Developing a Performance Solution Using the NCC flowchart. It explains the all the key terms.  
Step 6: Download the Guidance Document it provides clear instructions for developing a performance solution.   
 

Once you have decided on a solution, you can access specific materials for each solution.
   
Home buyers and renovators can arrange for a personalised consultation by finding a professional NatHERS assessor  here.   
1 Comment

How to reduce your energy bill

9/10/2017

2 Comments

 
This section of our blog has been created to provide information and links to valuable sources for our customers to reduce their energy usage and save money on energy bills.

​Below is a graphic outlining how Australian households are using their energy. You can follow the link on the picture to the sa.gov.au page for information on how to reduce your energy consumption.
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Image Source: Home Energy Use SA.gov.au https://www.sa.gov.au/topics/energy-and-environment/using-saving-energy/home-energy-use
According to the Australian Government website Your Home "The average Australian home is responsible for around 7 tones of greenhouse gas emissions each year." Dr Niraj Lal delivered a TEDx Sydney speech that demonstrated just how much coal each Australian consumes in one year he also explain how energy is generated and the benefits of using solar power.

The Your Home website advises homeowners to reduce their household emissions by: using energy efficient heating and cooling choices, energy efficient hot water, low powered lighting, home automation, renewable energy, batteries, smart meters, in home displays and efficient smart appliances. 

Below is a brief overview of how homeowners can reduce their energy consumption in a few of the areas mentioned above:

Heating and Cooling (40% of home energy usage):

  - Remove draughts 
  - Use double glazed windows
  - Zone heating systems
  - If using central heating and cooling systems limit cooling to 24 degrees in summer and heating to                 
    18 degrees in winter
​  - If you are designing a new home try to position the house so that it faces north, and incorporate  
    the use of double glazed windows and insulation. 

Hot Water (21% of home energy usage):

​  - Choose an energy efficient hot water service that heats enough water for your household.
    sa.gov.au recommend  reducing  shower time, utilising efficient shower heads and fixing 
    dripping taps.
 
    For a thorough understanding of water heating energy ratings go to energyrating.gov.au

Lighting (7% of home energy usage):

  - Use natural lighting from windows, doors and skylights
  - Turn lights off when not in use
  - Use energy efficient lighting

If your are considering switching to renewable energy check out this page first.
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Saving Energy at Home a Visual Guide Image source: https://www.sa.gov.au/__data/assets/pdf_file/0011/75917/161222-Saving-energy-at-home-visual-guide-DL-web.pdf
The aim of this section of the 13TRADIE blog is to share our resources with you and to help our customers reduce their greenhouse emissions and save on energy bills. Check back soon for updates and more information on how you can reduce your carbon footprint.
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