Net zero energy homes to save homeowners on costs

The Australian Renewable Energy Agency (ARENA) has announced $784,000 in government funding to Mirvac Victoria to trial its ‘net zero energy’ housing estate in Altona North, Melbourne.

The Fabric by Mirvac Victoria

Including two-, three- and four-bedroom townhouse and mid-rise apartments, Mirvac’s master-planned community “The Fabric” will demonstrate the feasibility of achieving net zero energy homes at scale and significantly reduce energy bills for homeowners.

With the support of ARENA, the $2 million project will see each of the townhouses designed with a minimum seven star energy rating. Each townhouse will have a minimum of 3.8-5 kW rooftop solar array, 10 kWh home battery storage, real-time smart home energy monitoring, upgraded wall and roof insulation, double glazed windows and energy efficient electric appliances, heating, cooling, lighting and hot water systems.

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The townhouses will also be ready to provide demand response with heating and cooling devices enabled to speak to the grid. There will also be provision for a 32A electrical point installed in the garage for current and future EV owners.

ARENA CEO Darren Miller said the project will demonstrate the benefits of incorporating consumer energy technologies and energy efficiency into new homes.

“By incorporating energy efficiency, renewable energy and smart heating and cooling when designing and building new homes, Mirvac’s trial will hopefully encourage a step change in the housing industry,” he said. 

“Through this project, Mirvac will be able to offer home buyers features that will help reduce energy use, energy bills and emissions from the beginning.

“The Altona North site will provide the perfect test case in pushing to create change in the building industry and also inform potential buyers about the benefits of owning a net zero energy home.”

By demonstrating net zero energy homes at scale, The Fabric aims to accelerate the net zero energy concept throughout Mirvac’s portfolio and through the wider housing industry by providing insight into cost-effective design opportunities, in conjunction with live market testing to gauge the acceptance of net zero energy homes. The project will also provide 24-months of de-identified energy data to ARENA to review the impact of the homes in operation.

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Mirvac’s Victorian General Manager of Residential Elysa Anderson said the project was driven by a desire to reduce environmental impacts and improve operational affordability for The Fabric’s future residents.

“We have committed to an extensive trial of the net zero energy homes sustainability model, where the goal is to create net-zero energy homes by incorporating low-energy-use and renewable-energy-power,” she said.

“Net zero homes at The Fabric will offer both environmental and economic benefits. Lower energy consumption enables families to spend less money on their utility bills; it’s also the most responsible and sustainable choice for future generations.”

Mirvac is expected to commence construction on the townhouses in The Fabric in late 2020