Transform Your Old Aussie Home into an Energy-Efficient Haven
Scott Bradley’s 1960s home in Perth embodies the charm of a vintage Australian residence but lacks energy efficiency. Built from brick and tile, the house suffers from significant draughts in winter and overheating in summer. Unfortunately, it falls short of modern energy efficiency standards, which mandate at least a seven-star rating for new homes.
Energy Efficiency and Older Homes
Approximately 70% of Australian homes predate the introduction of energy efficiency standards. The star rating for these residences averages under three stars, indicating a pressing need for upgrades.
In response, the Australian federal government has committed $32.7 million to enhance the Nationwide House Energy Rating Scheme (NatHERS) for older homes. This initiative aims to provide energy rating certificates to participating households, detailing potential upgrades to improve energy efficiency.
Government Initiatives and Guidance
- Training and accreditation of more assessors.
- Development of energy rating software tools.
- Support for households to understand and improve their energy performance.
Assistant Minister for Climate Change and Energy, Josh Wilson, emphasized that even modest improvements in a home’s star rating could lead to significant reductions—up to 40%—in heating and cooling energy demands. This program not only allows homeowners to better comprehend their energy needs but also provides actionable insights to enhance comfort, lower bills, and reduce emissions.
DIY Energy Solutions
For homeowners like Scott, various affordable and DIY solutions exist. These include:
- LED lighting replacements.
- Draught-proofing windows, walls, and floorboards.
- Sealing bathroom exhaust fans.
Kel Lupis, a CSIRO home energy assessor, evaluated Scott’s home and provided a low energy star rating of 2.6. He pointed out that cost-effective changes, such as ceiling insulation, can yield high impacts without breaking the bank.
Showcase Projects and Future Changes
A display home in Perth with an energy rating exceeding nine stars serves as a practical example of economical living. The potential extension of NatHERS to all homes could pave the way for mandatory energy star ratings during property transactions, a practice recently piloted in New South Wales.
Sustainability expert Chiara Pacifici urged home buyers and renters to inquire about the energy performance of properties. Research indicates that buyers are willing to pay a premium for homes with high energy ratings, akin to the details they already seek regarding appliances.
Success Stories of Retrofit Projects
Jason, another Perth homeowner, has invested substantially in retrofitting his 1990s home. His upgrades—ranging from double-glazed windows to solar panels—have elevated his energy rating to over seven stars, significantly enhancing comfort and reducing energy expenses. The initial cost for energy assessments is about $300, but the long-term benefits can be significant.
Wilson envisions a future where energy ratings are integral to property sales and leases. The shift toward mandatory disclosures will empower consumers to prioritize energy-efficient homes.
